Modulation of wrist stiffness caused by adaptation to stochastic environment
Modulation of wrist stiffness caused by adaptation to stochastic environment
复制标题
适应随机环境引起的手腕僵硬的调节
DOI:
10.1080/01691864.2021.1900913
复制
发表时间:
2021
影响因子:
2
通讯作者:
Y. Koike
中科院分区:
文献类型:
--
作者:
H. Kambara;H. Ogawa;A. Takagi;D. Shin;N. Yoshimura;Y. Koike
We can catch all sorts of falling objects like eggs or balls. We must predict the dynamical properties of objects to interact with them, but doing so precisely is difficult. The CNS is suggested to modulate the mechanical impedance of the musculoskeletal dynamics to accomplish robust control and overcome variability in environmental dynamics. In this study, we tested the hypothesis that musculoskeletal stiffness increases as the degree of variability in the environment increase through the motor adaptation process. We conducted a ball-catching task experiment in a virtual reality system where the load force of the ball changed every trial and measured the muscle activity in the wrist to estimate its joint stiffness. We found that group level wrist stiffness after adaptation monotonically increased against load force variability. Meanwhile, some participants showed a non-monotonic relationship between wrist stiffness and load force variability. The results of the experiment and computational simulations suggest that the CNS may adapt to a stochastic environment by modulating musculoskeletal stiffness level under the trade-off between movement accuracy and energetic cost.
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影响因子:
3
作者:
A. M. Acosta;R. Kirsch;E. Perreault
通讯作者:
E. Perreault
DOI:
10.20965/jaciii.2011.p0972
发表时间:
2011-10-01
影响因子:
0.7
作者:
Kambara, Hiroyuki;Ohishi, Keiichi;Koike, Yasuharu
通讯作者:
Koike, Yasuharu
影响因子:
2.5
作者:
Fagg, AH;Shah, A;Barto, AG
通讯作者:
Barto, AG
DOI:
10.1109/icat.2006.24
发表时间:
2006
期刊:
16th International Conference on Artificial Reality and Telexistence--Workshops (ICAT'06)
影响因子:
--
作者:
K. Akahane;S. Hasegawa;Y. Koike;Makoto Sato
通讯作者:
Makoto Sato
影响因子:
2
作者:
G. Savelsbergh;H. Whiting;A. Burden;R. Bartlett
通讯作者:
R. Bartlett