Abstract
Objective: Mental fatigue is caused by long-term cognitive activities and lead to changes in motor coordination. The purpose of this study was to investigate the effect of yoga training on balance and knee proprioception after mental fatigue in amateur male athletes. Methods: In this quasi-experimental study, 36 amateur male students were voluntarily selected as study samples and randomly divided into training (n=18) and control (n=18) groups. The training group received yoga exercises for eight weeks, three sessions per week, each for one hour. Mental fatigue was induced by 45 minutes of cognitive activity (Stroop test). Before and after mental fatigue and intervention, their dynamic balance was measured by Y-balance test and the semi-dynamic balance by Lafayette stability platform. Data were analyzed in SPSS v.22 software using paired sample t-test at the significant level of 0.05. Results: The effects of time and group×time interaction on dynamic and semi-dynamic balances (P=0.0001), and on active and passive knee proprioception (P=0.0001) were significant after yoga training. Conclusion: There were significant improvements in balance and knee proprioception of amateur athletes after yoga training. Further studies should be conducted to introduce solutions to the occurrence of mental fatigue in these athletes.
Highlights
P roper lower limb function is one of the most essential factors of participating in sports activities [1, 2]
Due to the considerable effect of mental fatigue on the occurrence of injury and the fact that no research has been done in this field so far, this study aimed to evaluate the effect of yoga training on knee proprioception and balance after mental fatigue in amateur athletes
For active and passive knee proprioception as well as static and dynamic balances, repeated measures ANOVA results showed that the effect of time (P=0.001) and time-group interaction (P=0.001) was significant
Summary
P roper lower limb function is one of the most essential factors of participating in sports activities [1, 2]. Functional stability is one of the essential indicators for participating in sports [3], and plays an important role in people's activities, including simple daily tasks and highlevel performances in sports based on their nature [4]. In this regard, proprioception as a very effective part of somatosensory system, plays a significant role in maintaining the balance of people. One of the factors that impair the proprioception sense is fatigue, because it increases the threshold of muscle spindle discharge, disrupting afferent feedback, and causing change in the joint awareness [6]. Due to the considerable effect of mental fatigue on the occurrence of injury and the fact that no research has been done in this field so far, this study aimed to evaluate the effect of yoga training on knee proprioception and balance after mental fatigue in amateur athletes
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