Effects of Arm Swing Limitation on Knee Joint Moment during Walking —Biomechanical Analysis Using a 3D Motion Capture System

[Purpose] The purpose of this research was to examine the biomechanical effects of arm swing limitation on knee joint gait. [Subjects] Subjects were 10 healthy males (mean age, 22 ± 0.8 years; mean height, 173.9 ± 5.9 cm; mean weight, 67.0 ± 6.4 kg). [Methods] Knee abduction normally shows a bimodal...

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Published inJournal of Physical Therapy Science Vol. 24; no. 10; pp. 965 - 967
Main Authors Nagasaki, Takayuki, Hori, Katsuhiro, Fukudome, Hideaki, Katoh, Hiroshi, Hamada, Terukazu, Goshima, Yokiko, Nakano, Sota, Gotoh, Kenta, Tashiro, Yuki, Noguchi, Hirotaka
Format Journal Article
LanguageEnglish
Published The Society of Physical Therapy Science 2012
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ISSN0915-5287
2187-5626
2187-5626
DOI10.1589/jpts.24.965

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Summary:[Purpose] The purpose of this research was to examine the biomechanical effects of arm swing limitation on knee joint gait. [Subjects] Subjects were 10 healthy males (mean age, 22 ± 0.8 years; mean height, 173.9 ± 5.9 cm; mean weight, 67.0 ± 6.4 kg). [Methods] Knee abduction normally shows a bimodal curve. The top of the primary curve was defined as val_m1 and that of the secondary curve was defined as val_m2. Knee abduction moment, knee extension moment, GRF range, trunk rotation range, and arm swing range were then calculated at val_m1 and val_m2. Measurements were performed without arm swing limitation on a 10-m walkway (no limitation condition), and with the subjects’ arms folded in front of their chests (limitation condition). [Results] Val_m1 was 10.9 ± 2.4% of the gait cycle. Val_m1 (65.3 ± 13.1 Nm) under the limitation condition was significantly lower than that (70.0 ± 13.0 Nm) under the no limitation condition (p<0.01). In addition, the knee extension moment (71.7 ± 21.1 Nm) under the limitation condition was significantly higher than that (62.6 ± 20.4 Nm) under the no limitation condition at val_m1 (p<0.01). [Conclusion] Arm swing limitation decreases knee abduction moment, but increases knee extension moment.
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ISSN:0915-5287
2187-5626
2187-5626
DOI:10.1589/jpts.24.965