Ehsan Khajoei Ravari; Ahmad Farokhi; Amir Abas Gholi; Nafiseh Karshenas Najaf Abadi; Saeed Soheilipour
Abstract
Colors influence mood and mental state of human beings and since manis constantly in touch with colors, great important will be attached to thecolors. Exercise is also associated with different colors and is performed inan environment full of different colors. Also, one of the important factorsaffecting ...
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Colors influence mood and mental state of human beings and since manis constantly in touch with colors, great important will be attached to thecolors. Exercise is also associated with different colors and is performed inan environment full of different colors. Also, one of the important factorsaffecting athletes' success is response to the stimulus. Considering theimportance of color and reaction time, this study examined the effect ofenvironmental color on simple reaction time to call in athletes. Thestatistical population consisted of male students (mean age 22.2 yr) ofUniversity of Tehran and 50 subjects were selected by the simple randomsampling method. Simple reaction time to auditory stimulus was recordedusing YB-1000 set. Analysis of variance with repeated measures andBonferroni post hoc test were used to analyze data. Findings showed thatthe smallest standard deviation and mean of simple reaction time to soundwas related to blue environment and there was a significant difference inthe reaction time between the blue environment and all environments exceptfor the white (p<0.05 ). The present results showed that exposure to blueenvironment can increase the speed of auditory information processing ininformation processing system of human beings.
Daryoush Khajavi; Ahmad Farrokhi; Ali Akbar Jaberi Moghadam; Anushiravan Kazemnejad
Abstract
The aim of this research was to examine the effect of a training interventionprogram on fall-related motor performance in the male elderly with no regularphysical activities. For this purpose, 39 out of 130 participants in screen test wereselected and assigned to training group (n=20) and control group ...
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The aim of this research was to examine the effect of a training interventionprogram on fall-related motor performance in the male elderly with no regularphysical activities. For this purpose, 39 out of 130 participants in screen test wereselected and assigned to training group (n=20) and control group (n=19). Subjectsaged between 60 and 70 in experimental were 73.68% and in the control group43.75% and subjects aged 71 and above were 26.31% in the experimental groupand 56.25% in the control group. Experimental group participated in a 10-weekintervention program (3 sessions per week and 90 minutes per session). Data werecollected with 30-s seat, sit and reach, one-leg standing (eyes open and closed), upand go, 10-meter walk and 10-meter obstacle walk tests. In this semi-experimentalresearch, Kolmogorov-Smirnov and independent t test was used to analyse motorperformance measures. Results indicated a significant improve in mean scores oflower extremity strength (27.37 rep), flexibility (29.28 cm), static balance with eyesopen (60.94 sec) and closed (19.36 sec), agility and dynamic balance (4.10 sec),10-meter walk (3.35 sec) and 10-meter obstacle walk (4.03 sec) in the experimentalgroup after the 10-week training intervention program (P<0.05). The findingsconfirmed the effect of training interventions (especially strength training) onimproving fall-related motor performance and preventing probable falls in theelderly.
Ahmad Farrokhi; Ebrahim Motesharee; Rasool Zeyd Abadi; Samira Aghasi; Gholam Reza Parsa
Abstract
The aim of this study was to determine the validity and reliability of the Persian version of sport perfectionism scale of Dun et al. (2006). To determine the construct validity of the questionnaire, 393 (230 male and 163 female) athletes with different skill levels (novice, non-elite and elite) in 10 ...
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The aim of this study was to determine the validity and reliability of the Persian version of sport perfectionism scale of Dun et al. (2006). To determine the construct validity of the questionnaire, 393 (230 male and 163 female) athletes with different skill levels (novice, non-elite and elite) in 10 team and individual sports were selected by random sampling method and then completed the questionnaire. For this purpose, three sport psychologists and three English teaching experts translated the questionnaire into Persian by translation - back translation method. Then, content and face validity of the Persian version was confirmed (CVI=0.89, VCR=0.93). Confirmatory factor analysis (CFA) based on structural equations model was used to determine the construct validity of the questionnaire; Cronbach alpha coefficient was used to determine internal consistency of the questionnaire and intra-class correlation coefficient under test-retest method with a 2-week interval was used to study temporal reliability of items. The results showed that the primary model of sports perfectionism scale did not support the favorable fit and thus did not confirm the construct validity of the primary model (30 questions). But after eliminating three problematic questions, the second model with 27 questions had acceptable fit indexes (RMSEA=0.08, CFI=0.87), internal consistency and temporal reliability indicating good validity and reliability of the modified Persian version (27 items) of sport perfectionism scale. Therefore, the Persian version of the sport perfectionism scale (modified model of 27 questions) can be used to study and evaluate the personality traits of Iranian athletes.
