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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Health Sciences / Faculty of Health Sciences >
Peer-reviewed Journal Articles, etc >
Influence of Constant Torque Stretching at Different Stretching Intensities on Flexibility and Mechanical Properties of Plantar Flexors
| Title: | Influence of Constant Torque Stretching at Different Stretching Intensities on Flexibility and Mechanical Properties of Plantar Flexors |
| Authors: | Oba, Kensuke Browse this author | | Samukawa, Mina Browse this author →KAKEN DB | | Nakamura, Kentaro Browse this author | | Mikami, Kentaro Browse this author | | Suzumori, Yuki Browse this author | | Ishida, Yuko Browse this author | | Keeler, Nathalie Browse this author | | Saitoh, Hiroshi Browse this author | | Yamanaka, Masanori Browse this author →KAKEN DB | | Tohyama, Harukazu Browse this author →KAKEN DB |
| Keywords: | stretching intensity | | range of motion | | stiffness |
| Issue Date: | Mar-2021 |
| Publisher: | Lippincott Williams & Wilkins (LWW) |
| Journal Title: | Journal of strength and conditioning research |
| Volume: | 35 |
| Issue: | 3 |
| Start Page: | 709 |
| End Page: | 714 |
| Publisher DOI: | 10.1519/JSC.0000000000002767 |
| Abstract: | Oba, K, Samukawa, M, Nakamura, K, Mikami, K, Suzumori, Y, Ishida, Y, Keeler, N, Saitoh, H, Yamanaka, M, and Tohyama, H. Influence of constant torque stretching at different stretching intensities on flexibility and mechanical properties of plantar flexors. J Strength Cond Res 35(3): 709-714, 2021-The purpose of this study was to examine the effects of constant torque stretching (CTS) at different stretching intensities on the maximal range of motion (ROM) and muscle-tendon unit (MTU) stiffness of plantar flexors. Fourteen healthy men performed 4 trials of differing stretch intensities: no stretching (control), 50, 75, and 100%. Stretch intensity was defined as maximum passive resistive torque predetermined at a familiarization trial. Each stretch trial consisted of 5 sets of 60-second CTS at the designated stretch intensity. Both maximal ROM and passive resistive torque were assessed during passive dorsiflexion, and MTU stiffness was calculated using the torque-angle curves measured before and after CTS. There were no significant differences in maximal ROM or MTU stiffness at the baseline condition. After the intervention, significantly greater maximal ROM and significantly lower MTU stiffness were observed in the 100% CTS condition than the control condition, whereas there were no significant differences between the submaximal intensity condition (i.e., 50 or 75% intensity) and the control condition. Therefore, our findings suggest that maximal intensity stretching is the most effective approach for improving both flexibility and MTU stiffness with CTS. |
| Rights: | This is a non-final version of an article published in final form in Oba, Kensuke1; Samukawa, Mina2; Nakamura, Kentaro2; Mikami, Kentaro3; Suzumori, Yuki1; Ishida, Yuko4; Keeler, Nathalie5; Saitoh, Hiroshi6; Yamanaka, Masanori2; Tohyama, Harukazu2 Influence of Constant Torque Stretching at Different Stretching Intensities on Flexibility and Mechanical Properties of Plantar Flexors, Journal of Strength and Conditioning Research: March 2021 - Volume 35 - Issue 3 - p 709-714
doi: 10.1519/JSC.0000000000002767. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/84204 |
| Appears in Collections: | 保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 寒川 美奈
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