TY  - JOUR
PY  - 2020//
TI  - Speed- and mode-dependent modulation of the center of mass trajectory in human gaits as revealed by Lissajous curves
JO  - Journal of biomechanics
A1  - Takiyama, Ken
A1  - Yokoyama, Hikaru
A1  - Kaneko, Naotsugu
A1  - Nakazawa, Kimitaka
SP  - e109947
EP  - e109947
VL  - 110
IS  - 
N2  - The central nervous system (CNS) achieves a stable gait at several speeds and modes while controlling diverse instability. An essential feature of a gait is the motion of the center of body mass (CoM). CoM motion is at larger risk for trespassing the base of support in the mediolateral direction than in the anteroposterior direction. How the CoM trajectory in the frontal plane changes depending on the speed or mode can thus provide insights about the neural control of stable gaits. Here, we reveal the speed- and mode-dependent modulations of the trajectory by utilizing a Lissajous curve. The current study clarifies that speed-dependent modulations are evident in walking. Between walking and running, there were significant mode-dependent modulations. In contrast, there were no significant speed-dependent modulations during running. Deviations from standard tendencies quantified via Lissajous curve fitting could be a sign of gait impairments and recovery after treatments.<p />  <p>Language: en</p>
LA  - en
SN  - 0021-9290
UR  - http://dx.doi.org/10.1016/j.jbiomech.2020.109947
ID  - ref1
ER  -