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The Comparison Anthropometric, Biomechanical and Psychological Characteristics between University Student and Student Girls Non-Athletes
Leila Nazari, Saba Rahmati,
Volume 19, Issue 22 (12-2021)
Abstract
One of the most important issues in community is health and progress people. Because of durability of a community depends on health each person. In this regard, the present study aims to compare anthropometric, biomechanical and psychological factors between university student and student girls done. Subjects of the study were 86 girls 15-17 years old and 113 university student 18-24 years old, took part randomly in this study. Measure anthropometric, biomechanical characteristic also psychological characteristics including general health (GHQ-28) and personality (NEO-FFI) were measured. The result of independent t-test showed that between percent fat and lean body mass, static balance and muscular endurance and all of the general health factors, there are significant differences between the two groups. In generally the subjects are in the border abdominal obesity and high risks associated health them. Doing prevention programs are essential. One of the most important proceedings for this group doing of physical activity and fitness and have a regular exercise program.

Effects Of 10-Session Dual Transcranial Direct Current Stimulation (TDCS) On Professional Swimmers Performance, Mental Toughness And Perceived Exertion
Mina Khantan, Behrouz Abdoli, Alireza Farsi,
Volume 23, Issue 30 (1-2026)
Abstract
Aim: Transcranial direct current stimulation (tDCS) is one of the newest methods in order to improve the athletic performance and mental preparation of professional athletes. In this study, we investigated the effects of 10-session unihemispheric concurrent dual-site anodal-tDCS (a-tDCS) of the primary motor cortex (M1) and dorsolateral prefrontal cortex (DLPFC), on swimming performance, mental toughness (MT) and perceived exertion.
Methods: 20 male professional swimmers (Age: 19.00±2.86 yrs) were randomly divided into tDCS (n=10) and sham (n=10) groups. On the first day, the Mental Toughness Questionnaire (SMTQ), next day, the 100-meter freestyle swimming performance test, and the rate of perceived exertion scale (RPE) were evaluated as pre-tests. From the third day, 10 sessions of tDCS were applied, each session a current of 2mA for 20 min, half an hour after the usual swimming exercise, three days a week. 48 hrs following 10th session of tDCS, evaluations were repeated. ANCOVA was used for statistical analysis.
Result: After 10 sessions of tDCS, swimming performance improved significantly; The total MT score increased significantly and no significant change was observed in RPE.
Conclusion: Based on this, multi-session tDCS combined with regular training is recommended to improve swimmers performance and psychological aspects that could be considered as a brain conditioning method to increase mental toughness and sports performance.

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