TY - GEN
T1 - Analysis of contribution of muscle synergies on sit-to-stand motion using musculoskeletal model
AU - An, Qi
AU - Ishikawa, Yuki
AU - Nakagawa, Junki
AU - Oka, Hiroyuki
AU - Yamakawa, Hiroshi
AU - Yamashita, Atsushi
AU - Asama, Hajime
PY - 2013
Y1 - 2013
N2 - Recently, declining physical ability of elderly people has become an extremely important social issue. To improve their daily living activities, the standing-up motion is emphasized in this study as an important daily motion. Synergy analysis is applied to the standing-up motion to extract four important groups of muscle activations (synergies). Furthermore, the effect of synergies on body movement is calculated based on a musculoskeletal model of the human body. Results suggest that the first synergy works as preparation of the motion by pulling the ankle and flexing the hip. The second synergy controls the joint moment of the hip and knee joints to raise the hip and move the center of mass forward. The third synergy controls the ankle joint according to movement of the center of mass. The last synergy stabilizes the posture change from a seated to a standing position. Our findings imply that it is important to train those functional muscle activity to enhance the ability of standing-up motion.
AB - Recently, declining physical ability of elderly people has become an extremely important social issue. To improve their daily living activities, the standing-up motion is emphasized in this study as an important daily motion. Synergy analysis is applied to the standing-up motion to extract four important groups of muscle activations (synergies). Furthermore, the effect of synergies on body movement is calculated based on a musculoskeletal model of the human body. Results suggest that the first synergy works as preparation of the motion by pulling the ankle and flexing the hip. The second synergy controls the joint moment of the hip and knee joints to raise the hip and move the center of mass forward. The third synergy controls the ankle joint according to movement of the center of mass. The last synergy stabilizes the posture change from a seated to a standing position. Our findings imply that it is important to train those functional muscle activity to enhance the ability of standing-up motion.
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U2 - 10.1109/ARSO.2013.6705499
DO - 10.1109/ARSO.2013.6705499
M3 - Conference contribution
AN - SCOPUS:84894211082
SN - 9781479923694
T3 - Proceedings of IEEE Workshop on Advanced Robotics and its Social Impacts, ARSO
SP - 13
EP - 18
BT - 2013 IEEE Workshop on Advanced Robotics and Its Social Impacts, ARSO 2013 - Conference Digest
T2 - 2013 IEEE Workshop on Advanced Robotics and Its Social Impacts, ARSO 2013
Y2 - 7 November 2013 through 9 November 2013
ER -