Motor Development and Learning
Zahra Fathirezaie; Robab Basel Younes; Mohammad Taghi Aghdasi
Abstract
Introduction: Mental fatigue significantly impacts sports performance, particularly in precision-oriented disciplines such as air pistol shooting. This research aims to investigate the effects of mental fatigue on performance accuracy and alpha wave activity with EEG in air pistol athletes.
Method: This ...
Read More
Introduction: Mental fatigue significantly impacts sports performance, particularly in precision-oriented disciplines such as air pistol shooting. This research aims to investigate the effects of mental fatigue on performance accuracy and alpha wave activity with EEG in air pistol athletes.
Method: This semi-experimental study involved two groups, consisting of 20 shooters divided into a mental fatigue group (N = 10 participants) and a control group (N = 10 participants). The Stroop test was employed to induce mental fatigue. Sports performance was assessed by having participants shoot 15 arrows at a shooting range, while alpha wave activity was measured using a 30-channel electroencephalography (EEG) device in two phases: before and after the shooting test. Statistical analysis was conducted using MATLAB, EEGLab, Excel software and 2x2 mixed analysis of variance with SPSS version 26 software at a significance level of 0.05.
Results: The results indicated that the mental fatigue group exhibited a decrease in shooting accuracy performance and an increase in alpha wave activity across five brain regions (F4, Ft7, C4, T8, P7), specifically in the frontal, central, temporal, and parietal areas. However, no changes were observed in the control group.
Conclusion: These results highlight the significance of managing mental fatigue in precision-oriented sports and suggest the development of training programs and coping strategies aimed at reducing mental fatigue to enhance athletes' performance.
Motor Development and Learning
seyedehakhtar hesari; hamid reza tahery torbaty; Alireza Sabery Kakhki
Abstract
Introduction: Therefore, the aim of the present study was to examine the effect of a course of targeted exercises based on a difficulty index on the balance of the elderly.
Methods: In this semi-experimental study, which was conducted with a pre-test-post-test design with a control group, 75 elderly ...
Read More
Introduction: Therefore, the aim of the present study was to examine the effect of a course of targeted exercises based on a difficulty index on the balance of the elderly.
Methods: In this semi-experimental study, which was conducted with a pre-test-post-test design with a control group, 75 elderly women in Mashhad, aged 65 to 75 years, were selected through voluntary participation and placed in five groups: standard-target distance, standard-variable distance, standard-target distance, variable-target distance, variable-target distance, and control. In the pre-test phase, participants stood on the Biodex balance board. The intervention phase was conducted for six weeks, with three sessions per week, in which participants performed 10 blocks of 10 attempts with two minutes of rest between blocks according to the available instructions. After completing the training phase, the post-test phase was conducted in which participants stood on the Biodex balance board as in the pre-test phase. The data were analyzed using univariate analysis of covariance.
Results: The results indicated that the standard-target-standard distance, standard-target-variable distance, variable-target-standard distance, and variable-target-variable distance interventions had a significant effect on improving the balance of elderly women (P<0.05). Other results also indicated the superiority of the standard-target-standard distance effect compared to the effect of other interventions in improving the balance of elderly women (P>0.05).
Conclusion: According to the results of the present study, it was determined that equilibrium would be facilitated by keeping the difficulty index constant, as this occurred in the test results of the group with the same difficulty index.
Motor Development and Learning
leila ghandehari alavijeh; hamidreza taheri torbati; alireza saberi kakhki
Abstract
This study investigated the effects of a selected virtual reality exercise program emphasizing environmental enrichment on continuous performance and brain waves in patients with Parkinson’s disease. This was a quasi-experimental study with a pre-test/post-test with a control group. The sample consisted ...
Read More
This study investigated the effects of a selected virtual reality exercise program emphasizing environmental enrichment on continuous performance and brain waves in patients with Parkinson’s disease. This was a quasi-experimental study with a pre-test/post-test with a control group. The sample consisted of 30 patients with moderate Parkinson's disease (aged 55-65) referred to outpatient rehabilitation centers in Tehran. Participants were randomly assigned to three ten-person groups (control, traditional exercise, virtual reality exercise). The tools used included virtual reality equipment, EEG for recording brain waves (delta, theta, alpha, beta, sensorimotor rhythm), and the Vienna Test System for assessing continuous performance. The training protocol consisted of 1-hour sessions over three weeks (twice weekly). The control group received no exercise, the traditional exercise group performed physical exercises, and the virtual reality group performed game-based exercises. Analysis of covariance (ANCOVA) showed significant differences between the three groups in continuous performance variables (omission errors and commission errors) and brain waves (p<0.05). Post hoc Bonferroni tests confirmed significant differences between the groups. Both the traditional and virtual reality training groups demonstrated significant differences in continuous performance and brainwave changes compared to the control group. Therefore, it can be concluded that both virtual reality and traditional exercises significantly improve continuous performance and brain waves in Parkinson's disease patients. Based on these findings, it is recommended that virtual reality technology be used as a novel and effective tool in designing rehabilitation programs for Parkinson's disease patients.
Motor Development and Learning
Mostafa Hajlofalian; Faeze Heydari; Elham Dehghan Niri
Abstract
Introduction: Sports talent identification (STI) is a complex process that benefits from insights across various scientific fields to enhance credibility. Nowadays, artificial intelligence has proven effective in prediction and classification tasks. Given that talent identification fundamentally revolves ...
Read More
Introduction: Sports talent identification (STI) is a complex process that benefits from insights across various scientific fields to enhance credibility. Nowadays, artificial intelligence has proven effective in prediction and classification tasks. Given that talent identification fundamentally revolves around accurately predicting and classifying individuals, leveraging AI can be truly transformative. This study aims to explore how artificial intelligence can be used for STI.
Methods: Despite the diversity of sports disciplines, four categories were selected: ball sports, racket sports, martial arts, and aquatic sports. The expert's opinion method was used to prioritize the selected indicators, which include anthropometric, somatic, motor control, biomechanics, physical and mental fitness factors. A total of 310 participants (boys and girls aged 6 to 16) were evaluated and labeled based on their scores. To assess the relationship between each component and the labels, independent t-tests were conducted, resulting in the selection of six key components for each category. Finally, the Perceptron 6-1-1 neural network was used to check the accuracy and validity of STI.
Results: The results of neural networks showed that the accuracy of the network for classifying people in ball sports, rocket sports, martial arts, water and other sport fields were 97.9, 97.9, 87.2, 91.5 and 80.8% respectively, which is a high and desirable accuracy.
Conclusion: Finally, it can be said that determining the principal components of each sports field and designing an artificial neural network helps researchers and coaches to know the important indicators of each field and use it for STI.
Motor Development and Learning
saeed shokri; , Mohammad Taghi Aghdasi
Abstract
Introduction: A warm-up decrement is a temporary and fleeting decrease in an individual's performance that occurs following a short-term rest period. It can be reduced by practicing cognitive techniques during the rest period. Therefore, the purpose of the present study was to investigate the effect ...
Read More
Introduction: A warm-up decrement is a temporary and fleeting decrease in an individual's performance that occurs following a short-term rest period. It can be reduced by practicing cognitive techniques during the rest period. Therefore, the purpose of the present study was to investigate the effect of overt and covert self-talk on the warm-up decrement of indirect billiards.
Methods: 70 participants were divided into seven homogeneous groups of 10 based on their indirect billiards hit scores in the pretest, including overt instructional self-talk, covert instructional self-talk, overt motivational self-talk, covert motivational self-talk, overt irrelevant self-talk, covert irrelevant self-talk, and control groups. They performed the task for 15 minutes, and their final score of 10 performances was recorded. Then they rested for 5 minutes, and then performed 10 performances. During the rest period, the participants performed self-talk related to their group. And the same steps were repeated once again with a 2-minute rest interval.
Results: The obtained scores were analyzed by combined analysis of variance (7x2) at a significance level of 0.05, and Bonferroni post hoc test was used to determine the differences between the groups at different stages. The results showed that the instructional and motivational self-talk groups (overt and covert) performed better than the unrelated self-talk and control groups, and their difference was significant.
Conclusion: According to the research results, athletes can use overt and covert instructional and motivational self-talk to reduce warm-up decrement during rest periods.
Motor Development and Learning
elahe siavashi; ayoub hashemi; abouzar saadatian
Abstract
Introduction: The aim of the present study was to investigate the effect of different cognitive conditions in dyad trainings on the improvement and stability of executive functions (working memory, response inhibition) of table tennis players. Methods: In a semi-experimental study with a pre-test-post-test ...
Read More
Introduction: The aim of the present study was to investigate the effect of different cognitive conditions in dyad trainings on the improvement and stability of executive functions (working memory, response inhibition) of table tennis players. Methods: In a semi-experimental study with a pre-test-post-test and retention design, 24 boys (mean age 15.03±0.076) were selected through convenience sampling from boys' schools in yasouj city and randomly assigned to two groups: high cognitive load and low cognitive load. Both groups performed dyad trainings for 6 sessions with their respective cognitive engagement levels. Each session consisted of 20 repetitions (3 minutes) with a 1-minute rest period between repetitions. The participants' working memory and response inhibition were measured by the n-back and go/no go tests in the pre-test, post-test, and retention stages, respectively. Data were analyzed using a mixed model analysis of variance (ANOVA) test.Results: The results showed that both high and low cognitive load groups had a significant effect from pre-test to retention on working memory (P<0.05), and the high cognitive load group performed better than the low cognitive load group. Neither group showed a significant effect on response inhibition (P > 0.05).Conclusion: In general, the results of the present study indicate that dyad trainings with high cognitive load provide the possibility of improving the working memory of table tennis players.
Motor Development and Learning
Hassan Mohammadzade; sara soltanifar; zahra afazeli
Abstract
Introduction: The purpose of this investigation was to examine the effects of gender stereotypes threat and conceptions of Ability on (a) motor performance (soccer dribbling) and (b) working memory (2- back) in young adolescent girls.
Methods: Ninety participants (Mage = 14.02 years old) were randomly ...
Read More
Introduction: The purpose of this investigation was to examine the effects of gender stereotypes threat and conceptions of Ability on (a) motor performance (soccer dribbling) and (b) working memory (2- back) in young adolescent girls.
Methods: Ninety participants (Mage = 14.02 years old) were randomly assigned into a gender stereotype threat and a control group (neutral; without stereotype threat). Each group was further randomly divided into inherent ability and acquired skill subgroups. Research tasks included soccer dribbling and the n-back test. In the pre test, they performed 1 blocks of five trials soccer dribbling and n-back test. in the practice phase, the individuals performed 12 blocks of five trials and then 48 hr later in retention and transfer (under pressure) participated in the same way as the pre test.
Results: Findings showed that there was no significant difference between the groups in the acquisition phase of the soccer dribbling task (p >.05), but there was a significant difference in time and error scores in the retention and transfer tests. However, gender Stereotype threat and ability concepts did not affect working memory.
Conclusion: Implicit activation of gender stereotypes does not always lead to negative consequences. Possible mechanisms regarding the effect of gender stereotypes threat and conceptions of Ability on motor performance and working memory were discussed.
Keywords: Motor skill, Stereotype threat, Working memory
Motor Development and Learning
Foad Niknasab; Mahmoud Sheikh; Fazlollah Bagherzadeh; Davood Homanian; Ali Moghadamzadeh
Abstract
Introduction: CTherefore, the present study was conducted to investigate the effect of virtual reality training on gross and fine motor skills in children with developmental coordination disorder.
Methods: In this semi-experimental study with a repeated measures design, 24 boys aged 7 to 10 years from ...
Read More
Introduction: CTherefore, the present study was conducted to investigate the effect of virtual reality training on gross and fine motor skills in children with developmental coordination disorder.
Methods: In this semi-experimental study with a repeated measures design, 24 boys aged 7 to 10 years from Tehran diagnosed with developmental coordination disorder (DCD) were selected based on inclusion criteria and randomly assigned to two groups: virtual reality training and control. Participants completed the Bruininks-Oseretsky Test of Motor Proficiency (BOT-2) at pretest. The intervention phase lasted six weeks, with three 20-minute sessions per week, during which the virtual reality group performed the prescribed training program while the control group engaged in their usual daily activities. A posttest was conducted in the final session. Follow-up assessments were performed one day and 42 days after the posttest to evaluate short-term and long-term effects, respectively. Data were analyzed using repeated measures analysis of variance (ANOVA).
Results: The results showed that virtual reality training led to a significant improvement in both gross and fine motor skills in children with developmental coordination disorder (DCD) (p < 0.05). Additionally, the findings indicated that the improvements in gross and fine motor skills were maintained in both short-term and long-term follow-up tests (p < 0.05).
Conclusion: Based on the results, virtual reality training can likely be used in clinical and home programs to improve gross and fine motor skills in children with developmental coordination disorder (DCD), as it can stimulate interest and promote active participation.
Motor Development and Learning
heidar hanoon; ali heyrani; ehsan amiri
Abstract
Introduction: This research investigates the effects of transcranial direct current stimulation, in one or more sessions, on the executive functions of novice tennis players.
Methods: 27 novice male tennis players (mean age 20.29 ± 0.29) were randomly and double-blindly divided into three groups: experimental ...
Read More
Introduction: This research investigates the effects of transcranial direct current stimulation, in one or more sessions, on the executive functions of novice tennis players.
Methods: 27 novice male tennis players (mean age 20.29 ± 0.29) were randomly and double-blindly divided into three groups: experimental group 1 (5 sessions of anodal stimulation), experimental group 2 (1 session of anodal stimulation), and control group (no anodal stimulation). Stimulation was applied for 20 minutes at an intensity of 2 mA in the M1 and DLPFC regions. Indicators of selective attention, working memory, response inhibition and cognitive flexibility were measured before (pre-test), after 5 sessions (post-test) and 2 weeks after the intervention (retention). For statistical analysis, a repeated measures ANOVA test (3x3 factorial design) was used.
Results: The results showed that there was no significant difference between the intervention groups in the indicators of selective attention and working memory in any of the evaluation stages (P> 0.05). However, experimental group 1 showed a more significant improvement in response inhibition (p= 0.018) and cognitive flexibility (p= 0.14) indices in the retention test compared to the control group, while no significant difference was observed between the other groups (P> 0.05). Both experimental groups showed significant improvement in all indicators in the post-test and retention. Notably, experimental group 1 showed a significant improvement in all indicators from post-test to retention (P<0.05).
Conclusion: In conclusion, both single-session and multi-session tDCS enhance executive functions in novice tennis players, with repeated stimulation yielding more durable cognitive benefits.
Motor Development and Learning
ebrahim norouzi; Habibolah Khazaie
Abstract
Introduction: Numerous studies have demonstrated the efficacy of physical activity as a therapeutic intervention for depression. However, recent research has highlighted the importance of incorporating psychological techniques, such as functional imagery, into exercise programs. The present study aimed ...
Read More
Introduction: Numerous studies have demonstrated the efficacy of physical activity as a therapeutic intervention for depression. However, recent research has highlighted the importance of incorporating psychological techniques, such as functional imagery, into exercise programs. The present study aimed to investigate the effectiveness of a combined physical activity and functional imagery program on psychological indices in individuals with major depressive disorder.
Methods: In this randomized controlled trial, 60 patients with Major Depression Disorders (MDD) were randomly assigned to three groups: a physical activity group, a combined group (physical activity and functional imagery), and a control group. All participants were assessed at three time points: pre-intervention, post-intervention(8 weeks later), and follow-up (four weeks later). Measured variables included symptoms of depression, anxiety, sleep quality, and reaction time.
Results: The combined group exhibited significantly reduced symptoms of depression and anxiety, along with improved reaction time compared to the control group. Both intervention groups effectively decreased symptoms of depression, but only the combined group showed improvements in sleep quality over the time.
Conclusion: The findings of this study suggest that combining physical activity with functional imagery is a comprehensive and effective therapeutic approach for depression. This intervention not only reduces symptoms of depression and anxiety but also enhances motor-cognitive function. The results of this study can contribute to the improvement of treatment programs for patients with depression
Motor Development and Learning
Vahid Khajeh; Zohreh Meshkati
Abstract
Introduction: Early childhood parent-child relationship is vital to emotional development and mental health, this study was intended to explore a movement-based (quality time) relationship between mothers and their preschool-aged Childs and the outcome on attachment styles and anxiety symptoms.
Methods: ...
Read More
Introduction: Early childhood parent-child relationship is vital to emotional development and mental health, this study was intended to explore a movement-based (quality time) relationship between mothers and their preschool-aged Childs and the outcome on attachment styles and anxiety symptoms.
Methods: This study was a non-randomized quasi-experimental post-test design conducted in the city of Isfahan. It involved 24 children aged 3 to 5 years old and their mothers, who participated in 18 joint mother-child physical activity sessions based on Teraplay therapeutic play principles. A control group consisting of 16 children received no intervention. Attachment was assessed using the Kinship Center Attachment Questionnaire (KCAQ), and child anxiety was measured using the Spence Children’s Anxiety Scale – Parent version (SCAS-P). Initial data analysis was performed using multivariate analysis of covariance (MANCOVA), controlling for maternal age and prior participation of the child in sports classes before the intervention.
Results: The level of attachment in the experimental group was significantly higher (p < 0.01) while anxiety level was significantly lower (p < 0.04) than that of the control group. Reductions in avoidance and negative attachment were also seen.
Conclusion: The results support that structured mother-child physical activities can foster secure attachment and decrease anxiety in young children. These results support the feasibility of using movement-based therapeutic interventions in early child mental health and parenting programs.
Motor Development and Learning
zahra kiyamanesh; rasool zeidabadi; zahra estiri
Abstract
Background: Stereotype threat and perceived competence are socio-cognitive variables that can greatly impact individuals' cognitive and motor performance. This research aimed to investigate the role of perceived competence, a psychological characteristicthat develops during childhood, in mitigating ...
Read More
Background: Stereotype threat and perceived competence are socio-cognitive variables that can greatly impact individuals' cognitive and motor performance. This research aimed to investigate the role of perceived competence, a psychological characteristicthat develops during childhood, in mitigating the effects of gender stereotype threat on the learning of pétanque throwing skills.
Method: Sixty female student volunteers, with a mean age of 13.22 ± 0.99 years, were divided into four groups based on their scores on the Perceived Motor Competence Questionnaire and the presence or absence of stereotype threat. During the acquisition phase, the participants executed 60 pétanque throws across 10 blocks of six trials each. The stereotype threat groups received written instructions regarding stereotype threats at the start of each trial and again in the third trial as a reminder. The retention test was conducted 24 hours after the acquisition phase, without the introduction of stereotype threat instructions. Following this, the transfer test took place 10 minutes later in front of an audience.
Result: The results indicated that gender stereotype threat significantly impaired motor learning in individuals with low perceived competence, while its effect on motor learning in individuals with high perceived competence is not statistically significant.
Conclusion: The findings of the current study suggest that high perceived competence may serve as a strategy to mitigate the harmful effects of stereotype threat. It seems that individuals with high perceived competence can lessen the negative impacts of stereotype threat owing to their increased self-efficacy.
Motor Development and Learning
hanieh hamedinasab; fatemeh rezaee; ahmad nikravan
Abstract
: Perceptual performance plays an important role in acquisition of children's skills, and perceptual-motor speed exercises and balance are effective in future professional success. The aim of this research was to determine the effectiveness of perceptual-motor exercises with self-control feedback ...
Read More
: Perceptual performance plays an important role in acquisition of children's skills, and perceptual-motor speed exercises and balance are effective in future professional success. The aim of this research was to determine the effectiveness of perceptual-motor exercises with self-control feedback and coach control on balance and reaction time of children aged 6-8.
Methods: Using available sampling, 60 girls from 6 to 8 years of age were selected from Neishabur city and randomly divided into 3 groups: self-control, coach control, and control. In order to colecting data the static and dynamic balance plate, the dynamometer device and the eight-way reaction time recording device was used. To implement the exercises from the protocol of perceptual-motor exercises with self-control feedback (the children had access to their performance feedback based on their choice) and control tester (the tester gave them feedback on how to perform the movements) for 8 weeks, 3 sessions a week in 45-60 minutes and a total of 24 sessions were used. The data were analyzed using analysis of covariance test.
Results: The findings of the research showed that perceptual-motor exercises with self-control and examiner-control feedback have significantly improved the static (P=0.12) and dynamic (P=0.001) balance of children. Also, perceptual-motor exercises with self-control feedback and examiner control caused a significant improvement in reaction time (P=0.0001), and the effect of training (group) on reaction time was also significant (P=0.001), there was a further decrease.
Conclusion: These findings somehow support the effect of intervention exercises on children's perceptual-motor abilities, especially reaction time. ...
Motor Development and Learning
Haleh Hashempoor; hasan mohammadzade
Abstract
Introduction: The method and manner of teaching can be one of the factors affecting the amount of learning in sports and its sense of fun in sports activities in school and other educational environments. The aim of the present study was to investigate the effect of futsal teaching using the teaching ...
Read More
Introduction: The method and manner of teaching can be one of the factors affecting the amount of learning in sports and its sense of fun in sports activities in school and other educational environments. The aim of the present study was to investigate the effect of futsal teaching using the teaching games for understanding (TGFU) and tactical games (TGA) methods on the performance and enjoyment of sports for students.
Methods: The statistical population of the study was female students in the first grade of secondary school (10 to 12 years old), 30 of whom had no previous experience of playing futsal and were physically healthy. They were randomly assigned to two educational groups (20 people in each group). The futsal skill test was used to evaluate futsal performance and the PACES questionnaire was used to evaluate the enjoyment of sports.
Results: The amount of the components of passing, dribbling, shooting and overall performance of futsal based on the TGFU method was better than the TGA method. Also, the average enjoyment of sports based on the TGA method was better than the TGFU method.
Conclusion: Both educational models had a profound impact on the performance and enjoyment of futsal training in students, and it can be said that both methods are practical models that coaches and sports teachers can use in their training.
Motor Development and Learning
Mehdi Babak; Hasan Mohammadzadeh; Masahiro Yamada
Abstract
Introduction: External attentional focus has been shown to enhance motor performance compared to internal attentional focus. Recently, studies have suggested that this effect may depend on the type of task-relevant instructions provided. The present study aimed to compare the effects of task-relevant ...
Read More
Introduction: External attentional focus has been shown to enhance motor performance compared to internal attentional focus. Recently, studies have suggested that this effect may depend on the type of task-relevant instructions provided. The present study aimed to compare the effects of task-relevant attentional focus instructions on dart-throwing skill performance.
Methods: This study employed a pretest, retention, and transfer test design. A total of 114 male high school students were randomly assigned to three groups (n = 38 each): external focus, form/technique external focus, and form/technique internal focus. On the first day, all participants completed 27 practice throws followed by a pretest. Over three training sessions (108 throws per session), the participants practiced under their assigned attentional focus instructions. Retention and transfer tests were conducted 24 hours after the final session. Data were analyzed using repeated-measures ANOVA, one-way ANOVA, and Tukey's post-hoc test.
Results: The results indicated significant differences across the pretest, retention, and transfer phases in all three groups. In the form/technique external focus group, a significant improvement was observed from the pretest to the retention test, but not from the pretest to the transfer test. When comparing transfer scores among the three groups, the form/technique internal focus group outperformed both other groups (p < 0.05).
Conclusion: Based on the findings, form/technique instructions with an internal attentional focus may be beneficial for improving motor skill performance; however, confirming these results requires further research.
Motor Development and Learning
ali heyrani; marzieh mehdiabadi
Abstract
Introduction: MS is a progressive autoimmune disease that damages the myelin sheath of neuron axons and, depending on the location and severity of the damage, leads to motor and cognitive disorders. The aim of the study was to investigate the effects of 12 weeks of submaximal aerobic exercise on balance, ...
Read More
Introduction: MS is a progressive autoimmune disease that damages the myelin sheath of neuron axons and, depending on the location and severity of the damage, leads to motor and cognitive disorders. The aim of the study was to investigate the effects of 12 weeks of submaximal aerobic exercise on balance, flexibility, and bilateral coordination of women with MS.
Research Method: This study was conducted on 30 women with mild MS in Kermanshah city with an age range of 18 to 40 years and a disability level of up to 5.5 on the EDSS scale. The volunteers were randomly divided into two groups of 15 people: control and experimental. Tests were administered before the exercises. The experimental group performed submaximal aerobic exercise for 12 weeks (2 sessions of 45 minutes per week). The control group continued their daily activities during this period. At the end, the desired variables were measured again.After ensuring the normality of the data distribution, a mixed analysis of variance test (2x2 factorial design, time with two levels, and group as a between-subjects factor with two levels) was used.
Findings: The results showed that compared to the control group, the experimental group had significant improvements in static and dynamic balance, bimanual coordination, and flexibility at the post-test. (P<0/05).
Keywords: Flexibility, Multiple Sclerosis, Static Balance, Dynamic Balance, Aerobic Exercises, Bimanual Coordination
Motor Development and Learning
Mahta Eskandarnejad; Mozhgan Fallah; behzad behzadnia
Abstract
Introduction: Basketball is a dynamic sport requiring rapid and accurate decision-making under conditions of fatigue. Both mental and physical fatigue have been shown to impair cognitive and motor performance. However, the combined effects of these two types of fatigue on decision-making processes across ...
Read More
Introduction: Basketball is a dynamic sport requiring rapid and accurate decision-making under conditions of fatigue. Both mental and physical fatigue have been shown to impair cognitive and motor performance. However, the combined effects of these two types of fatigue on decision-making processes across different skill levels in basketball players remain underexplored. Therefore, this study aimed to investigate the impact of mental and physical fatigue on the decision-making abilities of skilled and novice basketball players.
Methods: In this quasi-experimental study, 30 female basketball players (15 skilled and 15 novices, aged 18–25) participated. Mental fatigue was induced via the Stroop test, and physical fatigue was induced through a basketball-specific circuit protocol. Decision-making was assessed by presenting participants with video clips of real-game scenarios, with measures of accuracy and response time recorded for analysis. Data were analyzed using paired t-tests and ANCOVA to compare performance changes.
Results: Both mental and physical fatigue significantly reduced decision-making accuracy and increased response time in both skilled and novice groups (p < 0.05). In novice players, physical fatigue caused a greater increase in response time compared to mental fatigue. However, no significant differences were observed between skill levels in terms of fatigue-induced declines in decision-making performance.
Conclusion: The results demonstrate that mental and physical fatigue substantially impair basketball players’ decision-making performance. These findings underscore the importance of incorporating fatigue management strategies in both training and competitive settings, which should be tailored according to players’ skill levels.
Motor Development and Learning
Zahra Zarei; Hassan Mohammadzade
Abstract
Introduction: This study aimed to compare the effects of two training methods, "Small-Sided Games" (SSGs) and "divergent thinking" (DT) training, on self-efficacy and enjoyment of physical activity in young male soccer players.
Research method: The quasi-experimental research method ...
Read More
Introduction: This study aimed to compare the effects of two training methods, "Small-Sided Games" (SSGs) and "divergent thinking" (DT) training, on self-efficacy and enjoyment of physical activity in young male soccer players.
Research method: The quasi-experimental research method with a pre-test and post-test design included two experimental groups and a control group. This study was conducted over eight weeks, including pre-test and post-test sessions and practice during soccer school practices. The pre-test included completing a self-efficacy and enjoyment of physical activity questionnaire, one week before the start of the intervention. Players were homogeneously assigned to one of two experimental groups (DT group and SSG group) and control group according to the pre-test results. The intervention phase consisted of 18 training sessions lasting 20 minutes. The post-test was conducted according to the pre-test.
Results: The results of the mixed ANOVA showed a significant difference between the pre-test and post-test of the two DT and SSG groups, so that it can be said that the SSG group had a greater impact on self-efficacy and enjoyment of physical activity compared to the DT group and both groups had a greater impact on self-efficacy and enjoyment of physical activity compared to the control group, with 77% and 75% of changes, respectively. No significant difference was observed in the control group.
Conclusion: SSG training, by providing dynamic and variable training environments, creates internal motivation, enjoyment, self-efficacy, self-confidence and ultimately greater participation of young players in training.
Motor Development and Learning
Mahboobe Asgarani; Mehdi RafeiBoroujeni; Hamid Salehi
Abstract
Introduction:The purpose of this study was to determine the effect of self-controlled video feedback with and without attentional cues on the learning of the soccer push pass skill in girls.
Methods:A total of 52 female students, with an average age of (11.2 ± 0.6 years) and no prior experience, were ...
Read More
Introduction:The purpose of this study was to determine the effect of self-controlled video feedback with and without attentional cues on the learning of the soccer push pass skill in girls.
Methods:A total of 52 female students, with an average age of (11.2 ± 0.6 years) and no prior experience, were selected through convenience sampling. After pre-testing, participants were randomly assigned to four groups: self-controlled video feedback with attentional cues, self-controlled video feedback without attentional cues and yoked groups with first and second groups. Participants practiced the ball control and push pass skills over four training sessions. During training, the self-controlled groups were allowed to watch their videos whenever they chose, while the yoked groups watched their videos upon the request of self-controlled groups.The attentional cues groups received attentional cues toward important aspects of the skill in addition to watching their videos. Following the training sessions, all participants completed ball control and push pass skill test and a questionnaire measuring their experience of receiving feedback.After 48 hours, retention and transfer tests were conducted.Data were analyzed using analysis of covariance.
Results:There was a significant difference between the self-controlled video feedback with attentional cues group and its yoked group (p=0.005), the video feedback group(p=0.002), and the yoked with video feedback group(p=0.001).Additionally a significant difference was observed between the self-controlled video feedback group and its yoked group(p=0.009).
Conclusion:Skill acquisition is likely to improve when learners are actively engaged in the learning process and are given control over at least some aspects of the practice.
Motor Development and Learning
Tara taherpouri; hasan mohammadzade; raziye khanmohammadi
Abstract
Objective the specific content of these interventions and their optimal delivery methods, especially for pediatric populations, remain inadequately described.Methodology: This semi-experimental study employed a pretest-posttest design with a one-month follow-up. Twenty-four children aged 7 to 10 years ...
Read More
Objective the specific content of these interventions and their optimal delivery methods, especially for pediatric populations, remain inadequately described.Methodology: This semi-experimental study employed a pretest-posttest design with a one-month follow-up. Twenty-four children aged 7 to 10 years diagnosed with ADHD were purposively selected based on inclusion criteria and randomly assigned to two groups: yoga combined with real DLPFC stimulation and yoga combined with sham DLPFC stimulation. The study consisted of pretest, intervention, posttest, and follow-up stages. Following familiarization, participants completed the Ulrich-3 test at pretest. The intervention lasted four weeks, with four sessions per week, conducted every other day; each session was 40 minutes long. At the end of the intervention, participants completed the Ulrich-3 test again in the posttest, and one month later during the follow-up phase. Data were analyzed using multivariate analysis of variance .Results: Findings indicated that both yoga combined with real and sham DLPFC stimulation significantly improved and maintained gross motor skills (locomotor and object control skills) in children with ADHD (p < 0.05). Furthermore, the combination of yoga with real DLPFC stimulation demonstrated superior effects compared to yoga with sham stimulation in enhancing and sustaining gross motor skills (p < 0.05).Conclusion: This study presents an evidence-based training program that rehabilitation specialists and occupational therapists can directly implement when working with children with ADHD. Additionally, the results highlight the potential use of DLPFC stimulation combined with yoga as an efficient and practical intervention to improve motor proficiency and executive function children with ADHD.
Motor Development and Learning
Mojtaba Yavari; hossein samadi; Mostafa Hajlotfalian
Abstract
Background: A central objective in sports science is to examine the influence of various variables to optimize training efficacy and develop superior frameworks for skill acquisition and performance enhancement.
Aims: This study investigated the effect of self-controlled vs instructor-controlled demonstration ...
Read More
Background: A central objective in sports science is to examine the influence of various variables to optimize training efficacy and develop superior frameworks for skill acquisition and performance enhancement.
Aims: This study investigated the effect of self-controlled vs instructor-controlled demonstration on coordination variability (CV), movement smoothness (MS), and learning of the under-parallel swing skill.
Methods: 29 novice male gymnasts aged 10 to 12 years, were purposefully selected and randomly placed into three groups: self-controlled, yoked, and instructor-controlled. During the acquisition phase, all groups physically performed the under-parallel swing task across 12 blocks of 5 trials (60 trials total). Following each block, participants received a demonstration of the correct movement pattern. The principal distinction among the groups was the timing of the movement pattern demonstration. Following the training blocks, acquisition and retention tests were conducted. A motion capture system was used to evaluate the MS and CV of the movement pattern. The data were analyzed using a Mixed ANOVA test.
Results: The results showed that all training groups, significantly improved their CV, MS, and under-parallel swing skill performance, irrespective of the intervention. Moreover, between-group comparisons demonstrated that the self-controlled group performed significantly better than the other two groups in terms of performance, CV and MS (with the exception of movement smoothness in the retention test) (p < 0.05).
Conclusion: The findings confirm that utilizing a self-controlled practice method yields more favorable outcomes for learning the under-parallel swing skill. Therefore, this method is recommended for athletes and coaches.
Motor Development and Learning
K Norouzi; Leila Atri; Saleh Rafiee; Mohialdin Bahari
Abstract
The purpose of the present study was to investigate the effects of observational exercises based on gaze instructions on quiet eye duration (QED) and learning of children's mini basketball throwing. 24 children 10 to 12 were selected avialablly and randomly placed in two groups of modeling in first ...
Read More
The purpose of the present study was to investigate the effects of observational exercises based on gaze instructions on quiet eye duration (QED) and learning of children's mini basketball throwing. 24 children 10 to 12 were selected avialablly and randomly placed in two groups of modeling in first and third view. Research groups participated in observational learning exercises based on gaze instructions for three sessions based on the provision of gaze behavior and verbal instrcution which were subjected to gaze and performance evaluation before, after and 24 hours after the exercises. The The results showed that both types of viewing angles improved the performance of free mini -basketball throwing and increased the QED from the pre -test to retention. Also, there was no significant difference between the effectiveness of different angles. Therefore, gaze instructions during observational learning facilitate motor learning due to the improvement of attentional processes. The first result of the study indicated that there was no significant difference between the mini-basketball free throw performance of the research groups before the interventions, indicating that the groups were similar in terms of motor performance. The task of the present study was a mini-basketball free throw, which was performed from a distance of 4 meters towards a basketball hoop at a height of 2.60 meters above the ground. Since the subjects were children, the height of the hoop and the weight of the ball were lower.
Motor Development and Learning
hossein samadi; Saeid ahar; Leyli khavari; Nazanin Jalali Mohammadabadi
Abstract
Background: Encouraging physical activity is an important public health priority worldwide due to its multiple health outcomes, impact on quality of life, and significant savings in hospitalization and healthcare costs among older adults. Recently, physical literacy, a concept to support participation ...
Read More
Background: Encouraging physical activity is an important public health priority worldwide due to its multiple health outcomes, impact on quality of life, and significant savings in hospitalization and healthcare costs among older adults. Recently, physical literacy, a concept to support participation and maintenance of physical activity in older adults, has been introduced.
Aims: The aim of the present study was to determine the validity and reliability of the Persian version of the Perceived Physical Literacy Scale for the elderly.
Methods: The present study was descriptive-correlational. For this purpose, 408 elderly men and women completed the Persian version of the Perceived Physical Literacy Scale for the Elderly. First, the accuracy of the translation of the Persian version of the questionnaire was confirmed using the back-translation method, and then confirmatory factor analysis based on structural equation modeling was used to determine the construct validity of the questionnaire, and Cronbach's alpha coefficient was used to determine internal consistency. Also, for the temporal reliability of the questions, intraclass correlation was used with the test-retest method.
Results: The results showed that the goodness of fit index and adaptive fit index were desirable. The temporal reliability and Cronbach's alpha coefficient for self-efficacy and its dimensions were higher than 0.7 .
Conclusion: Based on the results, the Persian version of the Perceived Physical Literacy Scale for the Elderly has acceptable construct validity and internal and temporal reliability, and it can be used as a valid and reliable tool for assessing the physical literacy of Iranian elderly people.
Motor Development and Learning
sara soltanifar; Hassan Mohammadzade; seyyed mohammad reza mousavi
Abstract
Introduction: The purpose of the present study was to determine the role of sport self-efficacy in moderating the effect of negative gender stereotypes on motor learning in female students.
Methods: Sixty participants (Mage ...
Read More
Introduction: The purpose of the present study was to determine the role of sport self-efficacy in moderating the effect of negative gender stereotypes on motor learning in female students.
Methods: Sixty participants (Mage = 14.02 years old) were assigned into two groups, high and low self-efficacy, based on their scores on the sport self-efficacy questionnaire. Each group was randomly divided into four subgroups (high self-efficacy + stereotype threat, high self-efficacy + control, low self-efficacy + stereotype threat, low self-efficacy + control) based on whether they received stereotype threat instruction or not. In the pre-test phase,the individuals performed 1 blocks of five trials soccer dribbling. In the practice phase, they performed 5 blocks of five trials. Before the first trial, the stereotype threat groups received written stereotype instructions. Then 48 hr later in retention, subjects participated in the same way as the pre-test.
Results: Findings showed that gender stereotype threat caused a significant difference between the high and low self-efficacy groups in the acquisition and retention phase of the soccer dribbling task. The results showed that stereotype threat weakened the motor learning of individuals with low self-efficacy, whereas this effect was not significant on the motor learning of individuals with high self-efficacy.
Conclusion: High self-efficacy can be proposed as a strategy to reduce the negative impact of stereotype threat on motor learning. Possible mechanisms to explain the findings of the present study were discussed.
Motor Development and Learning
elaheh yousefi; hasan mohammadzadeh; zahre fathirezaie
Abstract
Methods: The participants included 40 shooters who were randomly divided into four groups. In pre-test, the subjects shot thirty arrows at red, blue, and white targets as environmental change factors, and brain waves were simultaneously recorded by an electroencephalography device. Then, mental fatigue ...
Read More
Methods: The participants included 40 shooters who were randomly divided into four groups. In pre-test, the subjects shot thirty arrows at red, blue, and white targets as environmental change factors, and brain waves were simultaneously recorded by an electroencephalography device. Then, mental fatigue group performed a thirty-minute Stroop task, the physical fatigue group performed thirty minutes of work on a stationary bicycle, and the combined group performed fifteen minutes of Stroop and fifteen minutes of cycling. The control group did not receive any intervention. Finally, the post-test was taken according to the pre-test. The data were evaluated using SPSS27, Excel10, and Matlab2019 software and the combined analysis of variance method.
Results: The results showed that in red and white sables, all types of fatigue led to increased alpha wave activity, possibly indicating a compensatory mechanism for the brain to maintain focus. In contrast, in exposure to blue sables, all forms of fatigue caused a decrease in alpha wave activity, indicating an increased brain processing load.
Conclusion: The neural response to fatigue is not an absolute and fixed phenomenon, but is dynamically influenced by environmental features, including the color of visual stimuli. Increased alpha activity in response to red and white stimuli may represent a compensatory strategy of the brain to maintain performance under conditions of fatigue, while decreased alpha activity in response to blue stimuli likely reflects increased processing load and altered attentional mechanisms. These results emphasize the importance of considering environmental variables in studies of fatigue and cognitive performance.
