Zahra Naghizadeh; Ahmadreza Movahedi; Mahdi Namazizadeh; Motahareh Mirdamadi
Abstract
The Effect of transcranial direct current stimulation (tDCS) has been studied in descriptive and laboratory tasks in the field of motor and sport skills. It is necessary that tDCS effects on real sport skills are investigated. The aim of the current study was to examine the Effect of tDCS on performance ...
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The Effect of transcranial direct current stimulation (tDCS) has been studied in descriptive and laboratory tasks in the field of motor and sport skills. It is necessary that tDCS effects on real sport skills are investigated. The aim of the current study was to examine the Effect of tDCS on performance of basketball two point field throws (BFT) in skilled basketball players. In this quasi- experimental study, we used a repeated measure design including a pretest, intervention, posttest and follow. A total of 26 male basketball players were randomly divided into either an experimental or a sham group. Both groups watched the point light model of the performance of two elite basketball players. Then, the participants of the exercise group received tDCS over their pre-motor cortex for 20 minutes. The participants of the sham group underwent identical tasks performance except that tDCS was artificially applied for them. BFT was assessed at baseline (pre-intervention), one day post-intervention and 7 days post-intervention. For analyzing data, two factor Mixed model ANOVA, independent and paired t-tests were used. Results showed that anodal tDCS created no between group's differences in BFT in the intervention phase while tDCS lead to significant improvement of BFT in experimental group skills compared to sham group in test phase. Results showed that tDCS could be considered as a useful intervention for the improvement of BFT in skilled basketball players.
Fatemeh Rezaee; Fazlolah Bagherzadeh; M.Hossein Sadeghzadeh
Abstract
Mental toughness is the ability to increase the flow of the positive energy against obstacles. The aim of the present study was to compare mental toughness of male and female skilled and novice climbers. 130 climbers that were randomly selected and divided to skilled and novice groups. Data were ...
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Mental toughness is the ability to increase the flow of the positive energy against obstacles. The aim of the present study was to compare mental toughness of male and female skilled and novice climbers. 130 climbers that were randomly selected and divided to skilled and novice groups. Data were collected through Mental Toughness Questionnaire of Sheard, Golby and Van Wersch. Data were analyzed using multivariate analysis of variance and LSD post hoc test (P≤0.05). The results showed that the main effect of skill was not significant but the main effect of gender and interaction between gender and skill were significant. Further analysis on the data showed that the highest mean belonged to the male skilled climbers in confidence component and the lowest mean belonged to female novice climbers in control component. Male skilled climbers were also significantly higher in all three subscales of confidence, control, and stability than female skilled climbers. So, it is suggested that according to the nature of climbing which is an endurance and risky exercise, merely being skilled at developing the mental toughness of climbers was not a criterion and other factors such as gender and its interaction with skill play an important role as well.
Ali Shafizadeh
Abstract
The present study investigated the prediction of the effect and contribution of developmental and skills factors related to talent identification before football education on 10-12-year-old adolescents’ skill performance after 8 educational sessions. The statistical population inclued all ...
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The present study investigated the prediction of the effect and contribution of developmental and skills factors related to talent identification before football education on 10-12-year-old adolescents’ skill performance after 8 educational sessions. The statistical population inclued all certified football schools in Isfshan city and finally 16 schools cooperated with the researcher. The sample included 171 male adolescents (mean±SD: age 11.01±0.79 year, height 141±7.8 cm, weight 34.03 ±7.5 kg) and 4 subjects were selected from each age group of each football school by simple random sampling method. The participants' skill performance including running with the ball, turning with the ball, dribbling and speed of running were assessed by football talent identification tests derived from the Football Association of England before and after 8 sessions of football education. Reliability of these tests were 90% and their validity was 85%. Descriptive statistics and multivariate stepwise regression analysis were used in this study. Data analysis revealed 4 models to predict adolescents’ skill performance after 8 sessions of football education according to the pretests. Finally, the perfect model predicted 59.4% of variability of the critria.
