Characteristics of the muscle activities of the elderly for various pressures in the pneumatic actuator of lower limb orthosis

Kyong Kim; Chang-Ho Yu; Tae-Kyu Kwon; Chul-Un Hong; Nam-Gyun Kim

doi:10.1117/12.664250

21 March 2006 Characteristics of the muscle activities of the elderly for various pressures in the pneumatic actuator of lower limb orthosis

Kyong Kim, Chang-Ho Yu, Tae-Kyu Kwon, Chul-Un Hong, Nam-Gyun Kim

Author Affiliations +

Proceedings Volume 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials; 604027 (2006) https://doi.org/10.1117/12.664250
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

There developed a lower limb orthosis with a pneumatic rubber actuator, which can assist and improve the muscular activities in the lower limb of the elderly. For this purpose, the characteristics of the lower limbs muscle activities for various pressures in the pneumatic actuator for the lower limb orthosis was investigated. To find out the characteristics of the muscle activities for various pneumatic pressures, it analyzed the flexing and extending movement of the knees, and measured the lower limbs muscular power. The subjects wearing the lower limbs orthosis were instructed to perform flexing and extending movement of the knees. The variation in the air pressure of the pneumatic actuator was varies from one kgf/cm² to four kgf/cm². The muscular power was measured by monitoring electromyogram using MP100 (BIOPAC Systems, Inc.) and detailed three-dimensional motions of the lower limbs were collected by APAS 3D Motion Analysis system. Through this study, it expected to find the most suitable air pressure for the improvement of the muscular power of the aged.

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Kyong Kim, Chang-Ho Yu, Tae-Kyu Kwon, Chul-Un Hong, and Nam-Gyun Kim "Characteristics of the muscle activities of the elderly for various pressures in the pneumatic actuator of lower limb orthosis", Proc. SPIE 6040, ICMIT 2005: Mechatronics, MEMS, and Smart Materials, 604027 (21 March 2006); https://doi.org/10.1117/12.664250

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KEYWORDS

Gait analysis

Motion analysis

Actuators

Video

3D acquisition

Cameras

3D applications

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