Relation between Inverse Fluctuation of COP and Toe Muscle Power, Ankle Dorsiflexion Power, and Static Balance during the Gait Initiation of the Elderly

• OHIRA Takamasa

  Department of Rehabilitation, Oita Prefectural Hospital

• IKEUCHI Hidetaka

  Department of Human Welfare Engineering, Oita University Faculty of Engineering

• ITOU Megumi

  Department of Rehabilitation, Beppu Rehabilitation Center

• KITOU Nobuhiro

  Department of Rehabilitation, Kawashima Orthopedic Hospital

Bibliographic Information

Other Title

• 高齢者の歩行開始にみられる作用点の後方移動と足指機能，足関節筋力，静的立位バランス能力との関連性

Abstract

The relationship between the Inverse fluctuation of the center of pressure (COP) at gait initiation and toe muscle power, dorsiflexion power of ankle, static balance was studied among the elderly. <br>The COP of the foot pattern during gait initiation has been well described as initially moving backward towards swing foot. Although this basic process is uniform regardless of age, the Inverse fluctuation of the COP tends to be small in the elderly. <br>The purposes of this study were to clarify the COP during gait initiation among the elderly and related factors determining the COP. The first part of this study measured the following parameters of 15 eldely subjects. The parameters were 1) inverse fluctuation of sagital direction of the COP (As), 2) inverse fluctuation of lateral direction of the COP (Al), 3) the quiet-standing balance (Bd, Ad), 4) premotor time of the inverse fluctuation of the COP (Cd), 5) toe muscle power (Fg), 6) grip force slope (Gs), 7) pre-motor duration of the grip (Gd), 8) motor duration of the grip (Tp), and 9) dorsiflexion power of ankle (Dt). In the second part, the results were compared with those of five young subjects. <br>The results were as follows. Elderly subjects indicated a significantly positive correlation between As and Al, Cd and Gd, and a negative correlation between Al and Bd. Gs was significantly smaller in elder subjects than in young subject. Al and Gs were greater in exercises than in preexercises, and Bd and Gd were smaller in exercises. This study could not prove that the inverse fluctuation of the COP relates to some factors. but the results suggested the possibility to clarify the COP shift mechanism.

Journal

• Physical Therapy Japan

  Physical Therapy Japan 31 (7), 420-425, 2004-12-20

  Japanese Society of Physical Therapy

Keywords

• 歩行開始
• 逆応答現象
• 高齢者

Details

• CRID: 1390564238025421696
• NII Article ID: 110004013351
• NII Book ID: AN10146032
• DOI: 10.15063/rigaku.kj00003365941
• ISSN: 2189602X
• ISSN: 02893770
• HANDLE: 10559/13908
• Web Site: https://our.repo.nii.ac.jp/records/2008261
• Web Site: https://search.jamas.or.jp/link/ui/2005119216
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed