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KMID : 1137820230440040284
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의공학회지
2023 Volume.44 No. 4 p.284 ~ p.292
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Observation of Muscle Activity and Muscle Fatigue During Isotonic Exercise at a Constant Face Using Metronome
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Choi Jun-Won
Song Chang-Hyun
Kim Jong-Min
Jung Woon-Mo
Kim Won-Gyeong
Kim Han-Sung
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Abstract
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This study attempted to observe muscle activity and muscle fatigue among isotonic exercise of Biceps Brachii and Deltoidus Medius, which correspond to upper limb muscles, using metronome. For the experiment, 13 adult men participated to evaluate biosignals (ECG, EMG). For quantitative evaluation, 1RM and MVIC test were carried out and a constant pace isotonic excise session was conducted. Five sets of exercise were performed, and each set proceeded to the failure point while the speed condition (30bpm) was assigned. As a result of the experiment, muscle activity in both muscles was significantly reduced in fifth set compared to first set. Muscle fatigue has been confirmed to occur at a significant level within the set, but there was only a significant difference in both muscles in the first and second sets between sets. This is similar to the results of previous studies that gives the same rest time(2min), but further research is needed to see if the conditions for the number of repetitions are affected. Based on the recent increase of interest in muscle strength exercise, this study was conducted to observe the results by varying the conditions of common exercise.
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KEYWORD
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Muslce, Fatigue, Isotonic excercise, Constant pace, Electromyography
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