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Student Mina Khantan, Professor Behrouz Abdoli, Professor Alireza Farsi,
Volume 0, Issue 0 (11-2019)

Transcranial direct current stimulation (tDCS) is one of the newest supplementary method 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. 20 male professional swimmers (Age: 19.00±2.86 yrs) were participated in this randomized, double-blind, and sham-controlled study. 100m free-style swimming test, the sport mental toughness questionnaire (SMTQ) and rating of perceived exertion (RPE) were evaluated as pre-tests. Then, athletes received 10-session tDCS (2mA for 20 min). 48 hrs following 10th session of tDCS, evaluations were repeated. ANCOVA was used for statistical analysis. After multi sessions of tDCS, swimming performance improved significantly (P=0.03) and total MT score increased significantly (P=0.046) and no significant change was observed in RPE. Based on the results of this study, multi-session tDCS along with routine training are recommended to improve swimmers performance and psychological aspects. Therefore, tDCS might be consider as a brain conditioning method.
Leila Nazari, Saba Rahmati,
Volume 19, Issue 22 (12-2021)

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.

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