The effect of isotonic muscle contraction using different squat conditions on post-activation potentiation
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- Sunakawa Rikiya
- Faculty of Education, University of the Ryukyus
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- Shimotake Shinichiro
- Sport Training & Physical Education Center, Chiba University of Commerce
Bibliographic Information
- Other Title
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- 異なるスクワット条件を用いた等張性筋収縮が活動後増強に与える影響
- コトナル スクワット ジョウケン オ モチイタ トウ チョウセイ キンシュウシュク ガ カツドウ ゴ ゾウキョウ ニ アタエル エイキョウ
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Description
The purpose of this study was to investigate the influence on post-activation potentiation (PAP) by performing isotonic muscle contraction using representative squat in resistance exercise. Subjects in this study were eight healthy male college students with training experience. In order to verify the effect of PAP, a counter movement jump (CMJ) was performed before and after the back-full squat (30%1RM× 3sets × 6reps, 60%1RM× 3sets×3reps, 90%1RM×3sets×2reps), and jump height, peak power, peak velocity, mean power, mean velocity were measured and analyzed. As a result, CMJ jump height (ES=0.68, 0.63), peak power (ES=0.80, 0.96), peak velocity (ES=1.03, 0.60) showed significantly high values after 60% and 90%1 RM conditions. This suggests that performing several sets of isotonic muscle contraction using medium and high intensity squats induce PAP and it can be an effective means as training to emphasize improvement of maximum power and speed.
Journal
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- Journal of Scientific Coaching for Training
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Journal of Scientific Coaching for Training 2 (1), 18-24, 2017
Japan Society of Scientific Coaching for Training
