Hamid Salehi, Adnan Ghazanfari, Ahmad Reza Movahedi, Maryam Nezakat Alhosseini,
Volume 1, Issue 2 (12-2011)
Abstract
In the present investigation we determined the time course of attention demands during the jumping service in volleyball by the dual-task paradigm. Fourteen voluntary junior elite volleyball players performed 60 jumping serve. Jumping-serve performance (JSP) as primary task and verbal reaction time (RT) to an auditory stimulus that was administered in four probe positions (PP), as secondary task was measured. Repeated measures analyze of variance (ANOVA) showed no significant effect of the PP on JPS, indicates allocating the most attentional weight to the JSP. In second analyze, effect of PP on RT was significant, so that all probes RT were significantly higher than the base line RT, indicates attention demanding of the JSP. Results also showed that pre-shot in run-up (PP1) and after the ball strike (PP4) had the greatest attentional demands respectively while per-jump stepping ahead (PP2) and just pre-striking the ball (PP3) had respectively the lowest needs of attention. The results indicate that attention follows a non-linear pattern, in the JSP.
Mrs Leyla Choopan Nezhad, Dr Rasoul Yaali, Dr Ahmad Reza Movahedi,
Volume 12, Issue 24 (12-2022)
Abstract
The purpose of this study was to determine the effect of dominant and non-dominant mental practice on Badminton's backhand short service. A total of 20 girls aged 12-14 years old from the city of Goldasht were selected and purposefully selected and randomly divided into two groups. Both training groups trained in 30 sessions, in which 50 performance were made to visualize the skill of the service mentally. In order to compare the two groups, the mixed ANOVA and Bonferron's post hoc test were used. Comparing the between-group, the results showed that mental practice with dominant hands was not significant in dynamic environment and interactive exercise, but subjective exercise was significantly (P <0.05). No significant results were obtained in the within group comparison, but given the low effectiveness, it seems that the difference between the two groups is very close to meaning. Research findings suggest that coaches and teachers of interactive practice can benefit from less-than-lateral mental practice to improve the performance of their athletes in training sessions.
