Hasan Sepehri Bonab; Fatemeh Sadat Hosseini; Malek Ahmadi
Abstract
Children with developmental coordination disorder (DCD) sometimes have difficulties in performing and learning motor skills. The aim of the present study was to investigate procedural motor acquisition and learning in DCD children. 12 children with developmental coordination disorder and 12 normal ...
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Children with developmental coordination disorder (DCD) sometimes have difficulties in performing and learning motor skills. The aim of the present study was to investigate procedural motor acquisition and learning in DCD children. 12 children with developmental coordination disorder and 12 normal children with matched IQ and chronological age were selected from 8-12-year-old male students of Tabriz city by purposive sampling method. A modified version of rotary pursuit task and variables of total time on target (TOT), consecutive time on target (CTT), distance from the target (DT), distance from the path (DP) and relative phase were used to assess procedural motor learning. After training in the acquisition phase, subjects participated in the immediate 10-minute retention test and the consolidation test after 24 hours of rest. Analysis of data by analysis of variance with repeated measures showed no significant differences between the two groups in TOT, DP, and relative phase in the acquisition phase, but there were significant differences in CTT and DT. There were significant differences in TOT, CTT, and DT in the retention phase, but there was no significant differences in DP and relative phase. Generally, the results suggested that despite the low performance of their procedural motor learning, DCD children were able to acquire motor coordination patterns.
Alireza Farsi; Seyyed Mohammad Kazem Vaez Mousavi; Ebrahim Norouzi
Abstract
The aim of the present study was to investigate the manipulation of senses and speed on the performance of bimanual dynamic coordination. Thus, 15 physical education students of Shahid Beheshti University with age range of 18-25 years performed in-phase and anti-phase patterns from slow to fast ...
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The aim of the present study was to investigate the manipulation of senses and speed on the performance of bimanual dynamic coordination. Thus, 15 physical education students of Shahid Beheshti University with age range of 18-25 years performed in-phase and anti-phase patterns from slow to fast speed in five different sensory conditions. To investigate two motor patterns ANOVA with repeated measures (5 sensory conditions × 3 speeds) on each in-phase and anti-phase pattern. Bonferroni post hoc test was used to analyze their following effects. The dependent variable was error of relative phase. Results showed that increasing the speed of performance influenced the performance of the anti-phase pattern (P=0.001), but it did not influence the in-phase pattern (P=0.9). Sensory manipulation results indicated that proprioception and vision manipulation had an effect on the accuracy and the variability of performance of two relative phases of motor patterns (P=0.001), but audition manipulation did not affect these patterns (P=0.315). In addition, the highest mean of error of relative phase and standard deviation of error of relative phase were observed in proprioception manipulation (P=0.001). It can be expressed that the bimanual linear coordination task in this study was a proprioceptive dependent task.
