Relationships between Muscle Strength at Various Joint Angular Velocities and Postural Control: Focusing on the Characteristics of Muscle Power Output at High Velocities

• MIYACHI Tsukasa

  Division of Physical Therapy, Department of Rehabilitation, Faculty of Health Sciences, University of Tokyo Health Sciences Graduate School of Health Science, Kibi International University

• HANEDA Yoshihiro

  Division of Physical Therapy, Department of Rehabilitation, Faculty of Health Sciences, University of Tokyo Health Sciences

• KAWAMURA Kenji

  Graduate School of Health Science, Kibi International University

Bibliographic Information

Other Title

• 異なる関節角速度での筋力と姿勢制御の関係性
• 異なる関節角速度での筋力と姿勢制御の関係性 : 高速度での筋出力特性に着目して
• コトナル カンセツ カクソクド デ ノ キンリョク ト シセイ セイギョ ノ カンケイセイ : コウソクド デ ノ キン シュツリョク トクセイ ニ チャクモク シテ
• ─高速度での筋出力特性に着目して─

Abstract

[Purpose] To clarify the relationships between muscle strength at various joint angular velocities and postural control. [Participants and Methods] The knee extensor strength and power output levels of 70 healthy male adults were measured at joint angular velocities of 0, 60, 90, 120, 180, 240, and 300 deg/sec to analyze the relationships between these values and cushion factors and total center-of-pressure (COP) locus lengths when performing one-leg drop jump landing. [Results] With an increase in the joint angular velocity, muscle strength significantly decreased, whereas muscle power output significantly increased. Furthermore, muscle strength and power output at a joint angular velocity of 90 deg/sec or higher were negatively correlated with the cushion factor and total COP locus length. [Conclusion] Although muscle strength tends to be measured under isometric conditions or at low velocities in clinical environments, the results of the present study indicate the importance of such strength at intermediate or higher velocities for instantaneous postural control, suggesting muscle power output at these velocities to be a parameter.

Journal

• Rigakuryoho Kagaku

  Rigakuryoho Kagaku 35 (1), 17-21, 2020

  The Society of Physical Therapy Science

Keywords

• knee extensor power
• joint angular velocity
• postural control

Details

• CRID: 1390846609808509184
• NII Article ID: 130007803137
• NII Book ID: AN10472896
• DOI: 10.1589/rika.35.17
• ISSN: 24342807
• ISSN: 13411667
• NDL BIB ID: 030275591
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030275591
• Web Site: https://www.jstage.jst.go.jp/article/rika/35/1/35_17/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2020226504
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed