Muscle Fatigue in Shoulder Joint External Rotation due to Consecutive Pitching
[Purpose] The purpose of this study was to clarify whether the shoulder joint external rotation muscles are affected by muscle fatigue from consecutive baseball pitching. [Subject] Ten adult men who had spent more than five years playing baseball participated in this study. [Methods] The muscle acti...
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| Vydáno v: | Rigakuryoho Kagaku Ročník 27; číslo 5; s. 535 - 538 |
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| Hlavní autoři: | , , |
| Médium: | Journal Article |
| Jazyk: | japonština |
| Vydáno: |
The Society of Physical Therapy Science
2012
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| Témata: | |
| ISSN: | 1341-1667, 2434-2807 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | [Purpose] The purpose of this study was to clarify whether the shoulder joint external rotation muscles are affected by muscle fatigue from consecutive baseball pitching. [Subject] Ten adult men who had spent more than five years playing baseball participated in this study. [Methods] The muscle activity in pitching before and after throwing 100 pitches were recorded using surface electromyography. From the recorded electromyography data, we calculated the time required to reach 50%, and 100% maximal voluntary contraction, and maximal value. We compared these values before and after throwing 100 pitches. [Results] After throwing 100 pitches, in terms of maximal value, only the electromyography data of the teres minor was delayed. The others muscles did not show any change. [Conclusion] Fatigue from consecutive baseball pitching weakened all muscles, but electromyography data were non-uniform. |
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| ISSN: | 1341-1667 2434-2807 |
| DOI: | 10.1589/rika.27.535 |