COMPARATIVE ELECTROMYOGRAPHICAL INVESTIGATION OF THE BICEPS BRACHII, LATISSIMUS DORSI, AND TRAPEZIUS MUSCLES DURING FIVE PULL EXERCISES
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- HANDA TOHRU
- Graduate School of Human Sciences, Waseda University
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- KATO HIROTO
- Center of Sports and Health Sciences, Gakushuin University
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- HASEGAWA SHIN
- Faculty of Sport Sciences, Waseda University
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- OKADA JUNICHI
- Faculty of Sport Sciences, Waseda University
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- KATO KIYOTADA
- Faculty of Sport Sciences, Waseda University
Bibliographic Information
- Other Title
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- 筋力トレーニングのプル系5種目における上腕二頭筋, 広背筋および僧帽筋の筋電図学的研究
- キンリョク トレーニング ノ プルケイ 5シュモク ニ オケル ジョウ ワン ニトウキン コウハイキン オヨビ ソウボウキン ノ キンデンズガクテキ ケンキュウ
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Description
To compare the effectiveness of five different muscle training movements on the biceps brachii, latissimus dorsi and trapezius muscles, eight weight-trained men (age, 20.4±0.5 years) were asked to perform three repetitions, at 70% one repetition maximum, of upright rowing (UR) and bent-over rowing (BR) exercises using a barbell ; and seated rowing (SR), front lat pull-down (LPf) and back lat pull-down (LPb) exercises using a Universal Machine. The activities of the biceps brachii, latissimus dorsi, and trapezius during the elbow flexsion and elbow extension phases of each exercise were analyzed using integrated electromyography (EMG) and normalized I-EMG. The results were as follows :<br>1. The mean nrmsEMG values for the biceps brachii were larger during UR and LPf exercises than during BR, SR, and LPb exercises, suggesting that UR and LPf are more effective than the other movements for training the biceps brachii. The mean nrmsEMG values for the latissimus dorsi were larger during SR, LPf, and LPb exercises, followed by BR and UR exercises (in descending order), suggesting that SR, LPf, and LPb exercises are more effective than the other movements for training the latissimus dorsi.<br>2. The mean nrmsEMG values for the upper trapezius were larger during UR and BR exercises than during SR, LPf, and LPb exercises, suggesting that UR and BR exercises are more effective than the other movements for training the upper trapezius. The mean nrmsEMG values for the middle trapezius were larger during BR and SR exercises than during UR, LPf, and LPb exercises, suggesting that BR and SR exercises are more effective than the other movements for training the middle trapezius. The mean nrmsEMG values for the lower trapezius were larger during BR exercise than during other movements, suggesting that BR exercise is more effective than the other movements for training the lower trapezius.<br>3. In all the exercises, each muscle showed a higher nrmsEMG value during the elbow flexsion phase than during the elbow extension phase. This observation suggests that the training method examined in this study should emphasize the elbow flexsion movement.<br>The present results suggest that UR exercise is the most effective movement for training the biceps brachii and upper trapezius, BR is most effective for training the upper trapezius, middle trapezius and lower trapezius, SR is most effective for training the latissimus dorsi and middle trapezius, LPf is most effective for training the biceps brachii and latissimus dorsi, and LPb is most effective for training the latissimus dorsi.
Journal
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- Japanese Journal of Physical Fitness and Sports Medicine
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Japanese Journal of Physical Fitness and Sports Medicine 54 (2), 159-168, 2005
The Japanese Society of Physical Fitness and Sports Medicine
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Details 詳細情報について
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- CRID
- 1390282679897290112
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- NII Article ID
- 110001980150
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- NII Book ID
- AN00137986
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- ISSN
- 18814751
- 0039906X
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- NDL BIB ID
- 7363354
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed