抄録
Joint contractures have been one of the contraindications for use of functional electrical stimulation for standing in paraplegic patients. A simulation study using a three-segment link mechanical model of the human body was performed to calculate the muscle moments at the ankles, knees, and hips during standing with and without having joint contractures. The knee and hip angles were varied in 5°increments, whereas the ankle angles were varied in 1°increments. It was assumed that energy efficient posture was obtained with the least sum of the squared moments of the ankles, knees, and hips joints by the muscles. Ankles at 5°of dorsiflexion, knees at 0°, and hips at 15°of extension resulted in the most energy efficient posture without joint contractures. The muscle moments increased with the increase in angle of contractures. The joint contractures at ankle angles ≤6°of plantar flexion, knee angles ≤20°of flexion, and/or hip angles ≤20°of flexion produce a potentially unstable posture. These findings suggest that some degree of joint contractures can be tolerated in paraplegic patients using functional electrical stimulation for standing.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 49-54 |
| ページ数 | 6 |
| ジャーナル | American Journal of Physical Medicine and Rehabilitation |
| 巻 | 77 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 01-01-1998 |
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All Science Journal Classification (ASJC) codes
- Physical Therapy, Sports Therapy and Rehabilitation
- Rehabilitation
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Ankle, knee, and hip moments during standing with and without joint contractures : Simulation study for functional electrical stimulation. / Kagaya, Hitoshi; Sharma, Mukut; Kobetic, Rudi; Marsolais, E. Byron.
：: American Journal of Physical Medicine and Rehabilitation, 巻 77, 番号 1, 01.01.1998, p. 49-54.研究成果: Article
TY - JOUR
T1 - Ankle, knee, and hip moments during standing with and without joint contractures
T2 - Simulation study for functional electrical stimulation
AU - Kagaya, Hitoshi
AU - Sharma, Mukut
AU - Kobetic, Rudi
AU - Marsolais, E. Byron
PY - 1998/1/1
Y1 - 1998/1/1
N2 - Joint contractures have been one of the contraindications for use of functional electrical stimulation for standing in paraplegic patients. A simulation study using a three-segment link mechanical model of the human body was performed to calculate the muscle moments at the ankles, knees, and hips during standing with and without having joint contractures. The knee and hip angles were varied in 5°increments, whereas the ankle angles were varied in 1°increments. It was assumed that energy efficient posture was obtained with the least sum of the squared moments of the ankles, knees, and hips joints by the muscles. Ankles at 5°of dorsiflexion, knees at 0°, and hips at 15°of extension resulted in the most energy efficient posture without joint contractures. The muscle moments increased with the increase in angle of contractures. The joint contractures at ankle angles ≤6°of plantar flexion, knee angles ≤20°of flexion, and/or hip angles ≤20°of flexion produce a potentially unstable posture. These findings suggest that some degree of joint contractures can be tolerated in paraplegic patients using functional electrical stimulation for standing.
AB - Joint contractures have been one of the contraindications for use of functional electrical stimulation for standing in paraplegic patients. A simulation study using a three-segment link mechanical model of the human body was performed to calculate the muscle moments at the ankles, knees, and hips during standing with and without having joint contractures. The knee and hip angles were varied in 5°increments, whereas the ankle angles were varied in 1°increments. It was assumed that energy efficient posture was obtained with the least sum of the squared moments of the ankles, knees, and hips joints by the muscles. Ankles at 5°of dorsiflexion, knees at 0°, and hips at 15°of extension resulted in the most energy efficient posture without joint contractures. The muscle moments increased with the increase in angle of contractures. The joint contractures at ankle angles ≤6°of plantar flexion, knee angles ≤20°of flexion, and/or hip angles ≤20°of flexion produce a potentially unstable posture. These findings suggest that some degree of joint contractures can be tolerated in paraplegic patients using functional electrical stimulation for standing.
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UR - http://www.scopus.com/inward/citedby.url?scp=0031914392&partnerID=8YFLogxK
U2 - 10.1097/00002060-199801000-00009
DO - 10.1097/00002060-199801000-00009
M3 - Article
C2 - 9482379
AN - SCOPUS:0031914392
VL - 77
SP - 49
EP - 54
JO - American Journal of Physical Medicine and Rehabilitation
JF - American Journal of Physical Medicine and Rehabilitation
SN - 0894-9115
IS - 1
ER -