Considering the increasing emphasis on the importance of psychological skills and its various applications in teaching and learning and improving exercise skills, the purpose of this study was to assess the effect of Psychological skills training (goal setting, positive self-talk and Imagery) on self-confidence among adolescent volleyball players. Material: For this purpose, 30 out of 100 male volleyball players in Sarakhs city were selected by simple random sampling method. They were divided into two groups: control (N = 15) and experimental (N = 15). Control group and experimental group participated in regular physical activity but experimental group moreover followed psychological skill training program. Psychological skills training included 24 sessions, each week 3 times. First, Ottawa's Assessment Skills Questionnaire (OMSAT_3) was applied for screening mental skills levels. Then, before and after the intervention of the psychological training program (24 sessions) Trait and State self-confidence questionnaires from subjects were collected. To calculate the mean difference between groups, one-variable covariance statistical method was used and hypothesis testing was performed at a significant level (p <0.05). Results: The results of the study showed that the Psychological skills training program had a significant effect on state and trait self-confidence among adolescent volleyball players (p <0.05). Conclusions: Psychological skills training associated with technical and physical training should be used by coaches for attaining optimum self-confidence and peak performance of athletes.

Purpose:The aim of this study was to assess mid-term effect of Kinesio tape on peak power of quadriceps and hamstrings muscles after ACL reconstruction 24 hours after taping. Material:Thirty six men who had undergone ACL reconstruction and completed physiotherapy periods (6 months) were assigned to no taping, placebo and taping groups. Peak power was tested before and 24 hours after taping by Isokinetic dynamometry. Data was analyzed by SPSS software 19. ANOVA and post hoc test (LSD) were used for interpretive analysis. Results:The results showed that the effect of Kinesio tape on peak power of quadriceps muscles at velocities of 180°/s and 300°/s was significant. In the hamstring muscles, significant effects were obtained at velocities of 60°/s, 180°/s & 300°/s. Conclusions:Positive impacts of Kinesio tape on muscular peak power among athletes who had ACL reconstruction were observed. Regardless of psychological effect and reducing re -injury fear, Kinesio -tape causes to stabilize and increase effective range of motion of the knee, so it is recommended that in the explosive training, athletes who have ACL reconstruction should use tape to reduce the probability of re-injury and increase muscle power.

Purpose:The aim of this study was to compare confidence, cognitive and somatic anxiety among elite and non-elite futsal players and its relationship with situational factors. Material:130 non-elite and 70 elite male futsal players participated in the study. Competitive State Anxiety Inventory-2 and situational factors Inventory were applied. Data was analyzed using one way ANOVA and product moment correlation. Results:Results showed there was significant difference between competitive state anxiety subscales (cognitive anxiety somatic anxiety & self-confidence) and situational factors among elite and non-elite futsal players but there was no significant correlations between situational factors subscales among elite and non-elite futsal players. Conclusions:Competitive state anxiety is part of sport competition and it seems elite athletes can manage and interpret anxiety well with respect to their experiences and psychological intervention and then consider anxiety and situational variables as facilitative factors for his or her competition.