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Handgrip strength and muscle fatigue among footwear industry workers

机译：制鞋业工人的握力和肌肉疲劳

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Introduction: Muscle fatigue can be defined as a decrease in the performance of the neuromuscular system in generating force. This situation is considered a complex physiological process involving various body systems, in order to avoid irreversible damage or even cell death. Objective: The aim of this study was to measure muscle strength in order to assess the level of fatigue among footwear industry workers, and to determine a possible correlation between muscle strength and the perception of reported fatigue. Materials and Methods: The study included 32 male workers from the footwear industry with a mean age of 34.63 ?± 11.98 years. The workers performed the handgrip strength test using a handheld dynamometer, and completed the Bipolar Fatigue Questionnaire. Results: The mean result of strength testing was 23.1 ?± 8.3 kgf, and the mean score of the fatigue questionnaire was 2.28 ?± 0.93 points. However, a low correlation was observed between the results of the fatigue questionnaire and the strength test results. Conclusion: The grip strength results of the footwear workers were below the values for the general Brazilian population, a fact that may indicate potential muscle fatigue. However, a low correlation with the perception of fatigue was indicated by the questionnaire.
机译：简介：肌肉疲劳可以定义为神经肌肉系统在产生力量方面的表现下降。为了避免不可逆转的损害甚至细胞死亡，这种情况被认为是涉及各种身体系统的复杂生理过程。目的：本研究的目的是测量肌肉强度，以评估制鞋业工人的疲劳程度，并确定肌肉强度与所报告的疲劳感之间的可能相关性。材料和方法：该研究包括来自制鞋业的32名男性工人，平均年龄为34.63±11.98岁。工人使用手持式测功机进行了握力测试，并完成了《双极疲劳问卷》。结果：强度测试的平均结果为23.1±±8.3 kgf，疲劳问卷的平均得分为2.28±±0.93分。但是，疲劳调查表的结果与强度测试结果之间的相关性较低。结论：制鞋工人的抓地力结果低于一般巴西人口的数值，这一事实可能表明潜在的肌肉疲劳。但是，问卷表明与疲劳感的相关性较低。

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