چکیده:
In most contextual interference studies, the effects of variability on outcome measures have been investigated, and less attention has been paid to its impact on improving movement pattern characteristics. The aim of this study is to examine the effect of three levels of interference on the method (intra- and inter-muscular coordination patterns) and the outcome of stationary shots and jump shots in basketball. Participants were 30 male students who practiced 16 sessions of 80 attempts with low (blocked), high (random), or moderate (interleaved) interference. Blocked, random, and interleaved retention tests were performed with 10 attempts for each shot. Examination of the outcome and execution method showed that despite significant progress in all three groups, at least in the first half of the acquisition sessions, superiority was with the negligible interference group (p < 0.01). In random practice, significant differences (p < 0.01) observed in the execution method were similar to classic contextual interference research. In blocked practice, the differences indicated the creation of a type of contextual dependency, such that the group coordination patterns that had practiced in a blocked manner were better than the other two groups. Overall, the findings showed that contextual interference can be useful for developing execution methods and enhancing the performance outcomes of motor skills.
خلاصه ماشینی:
Given what has been reviewed and observing the lack of research findings in the field of investigating various variabilities and their effectiveness on learning sports skills that require intra-limb and inter-limb coordination patterns, this study attempts to answer two questions: 1) In teaching sports skills to beginners, which arrangement and at what level of interference is more effective?
2) Are the effects of different levels of contextual interference on the method (intra-limb and inter-limb coordination patterns) and the performance results of sports motor skills the same?
To answer these two questions, this study investigates the effect of three different levels of contextual interference on the coordination patterns and performance results of two basketball skills: the set shot and the jump shot.
Percentage of successful shots for low, medium, and high interference groups in the pre-test, acquisition stage and retention tests Regarding the coordination pattern, the analysis results also showed that the main effect of the group was significant, p < 0.
Regarding the learning of motor tasks, especially sports skills, in most cases, no significant difference has been reported between the acquisition stage performance of the low and high interference groups, but most studies have reported the superiority of the high interference group in retention or (and) transfer.
Given what has been stated, future research in the field of contextual interference effects could be specifically dedicated to investigating the manipulation of different training program arrangements on the learning of coordination patterns of other motor skills that have more applications in the real world.
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