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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Anan, Masaya Shinkoda, Koichi Suzuki, Kentaro Yagi, Masahide Ibara, Takuya Kito, Nobuhiro |
| Description | Author Affiliation: Anan M ( Department of Biomechanics, Institute of Biomedical and Health Sciences, Hiroshima University, 2-3 Kasumi 1-chome, Minami-ku, Hiroshima 734-8553, Japan. Electronic address: anan@hiroshima-u.ac.jp.); Shinkoda K ( Department of Biomechanics, Institute of Biomedical and Health Sciences, Hiroshima University, 2-3 Kasumi 1-chome, Minami-ku, Hiroshima 734-8553, Japan.); Suzuki K ( Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.); Yagi M ( Midorii Orthopaedics Joint Reconstruction & Arthroscopy, 35-1 Midorii 6-chome, Asaminami-ku, Hiroshima 731-0103, Japan.); Ibara T ( Kawashima Orthopaedic Hospital, 17 Miyabu, Nakatsu, Oita 871-0012, Japan.); Kito N ( Hiroshima International University, 555-36 Kurosegakuendai, Higashi-Hiroshima, Hiroshima 737-0112, Japan.) |
| Abstract | The sit-to-stand motion (STS) is a frequently executed activity that is affected by weakness in the quadriceps femoris muscle and knee joint pain in patients with knee osteoarthritis (OA). We investigated whether patients with knee OA can efficiently perform STS through mechanical energy transfer assessments. Participants were 20 women with knee OA and 17 age-matched asymptomatic controls. The center of mass (COM), segment angles, joint moments, and powers during STS were measured. The negative mechanical work in the proximal portion of the shank, negative mean powers in the distal portion of the pelvis and proximal portion of the shank, and the positive mean power in the proximal and distal portions of the thigh were significantly lower in the knee OA group than in the control group. Patients with knee OA primarily performed thoracic forward lean movement, shifting their COM closer to the base of support provided by the feet alone, in an attempt to achieve stability at and after buttocks-off. However, control ability, which generates and absorbs kinetic energy quickly, was not enhanced in these patients, and their motion was unable to increase absorption of the mechanical energy in hip extensors and reduce the load on knee extensors. Furthermore, STS in patients with knee OA had reduced energy absorption in the knee extensors from the shank forward lean movement after buttocks-off, had reduced knee extensor efficiency, and made greater use of physiological energy. These findings suggest that, from the standpoint of mechanical energy transfer, patients with knee OA do not perform STS efficiently. |
| File Format | HTM / HTML |
| ISSN | 09666362 |
| Issue Number | 2 |
| Volume Number | 41 |
| e-ISSN | 18792219 |
| Journal | Gait & Posture |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-02-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Motion Research Support, Non-u.s. Gov't Discipline Orthopedics Movement Humans Journal Article Physiopathology Posture Biomechanical Phenomena Range Of Motion, Articular Controlled Clinical Trial Exercise Knee Joint Osteoarthritis, Knee Female Physiology Aged |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Rehabilitation Biophysics Sports Science |
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