2P1-I10 Big-hand: a device which holds a human body safely and realizes supporting for standing-up motion : Control mechanism of holding force

2015 ◽  
Vol 2015 (0) ◽  
pp. _2P1-I10_1-_2P1-I10_4
Author(s):  
Tetsunobu YUI ◽  
Yoshihiro NAGANO ◽  
Loh Chiun Tai ◽  
Hideyuki TSUKAGOSHI
Keyword(s):  
Motion Control ◽  
Human Body ◽  
Control Mechanism ◽  
Standing Up ◽  
Motion Control Mechanism

scholarly journals Modular Organization of Muscle Synergies to Achieve Movement Behaviors

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Kunkun Zhao ◽  
Zhisheng Zhang ◽  
Haiying Wen ◽  
Zihan Wang ◽  
Jiankang Wu
Keyword(s):  
Motion Control ◽  
Control Mechanism ◽  
Nonnegative Matrix ◽  
Movement Patterns ◽  
Motor Dysfunction ◽  
Muscle Synergy ◽  
Modular Organization ◽  
Muscle Synergies ◽  
Motion Primitives ◽  
Motion Control Mechanism

Muscle synergy has been applied to comprehend how the central nervous system (CNS) controls movements for decades. However, it is not clear about the motion control mechanism and the relationship between motions and muscle synergies. In this paper, we designed two experiments to corroborate the hypothesis: (1) motions can be decomposed to motion primitives, which are driven by muscle synergy primitives and (2) variations of motion primitives in direction and scale are modulated by activation coefficients rather than muscle synergy primitives. Surface electromyographic (EMG) signals were recorded from nine muscles of the upper limb. Nonnegative matrix factorization (NMF) was applied to extract muscle synergy vectors and corresponding activation coefficients. We found that synergy structures of different movement patterns were similar (α=0.05). The motion modulation indexes (MMI) among movement patterns in reaching movements showed apparent differences. Merging coefficients and reconstructed similarity of synergies between simple motions and complex motions were significant. This study revealed the motion control mechanism of the CNS and provided a rehabilitation and evaluation method for patients with motor dysfunction in exercise and neuroscience.

A Novel Motion Control Mechanism for Satellite Tracking Antenna Using Fuzzy Logic Control of Serial Robot

2021 ◽  
Author(s):  
Mohammad Reza Chalak Qazani ◽  
Houshyar Asadi ◽  
Shady Mohamed ◽  
Saeid Nahavandi ◽  
Joseph Winter ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Motion Control ◽  
Fuzzy Logic Control ◽  
Control Mechanism ◽  
Satellite Tracking ◽  
Logic Control ◽  
Serial Robot ◽  
Motion Control Mechanism

Dual-Hierarchical Control Mechanism of Interpersonal Embodied Interactions in Cooperative Walking

2011 ◽  
Vol 15 (5) ◽  
pp. 534-544 ◽  
Author(s):  
Takeshi Muto ◽  
◽  
Yoshihiro Miyake ◽  
Keyword(s):  
Motor Control ◽  
Motion Control ◽  
Control Mechanism ◽  
Control Structure ◽  
Control Function ◽  
Hierarchical Control ◽  
Control Mechanisms ◽  
Human Interface ◽  
Entrainment Process ◽  
Motion Control Mechanism

Interpersonal embodied interactions play a significant role as emergent functions in human development and rehabilitation. However, a framework for applying embodied interactions to “human interface systems” to support such emergent functions has not yet been suggested because the details of the motorcontrol mechanism have not yet been clarified. In this study, the interpersonal cooperative walking motions of two humans, as an example of such a mechanism, have been replicated and their motor-control mechanisms analyzed. The results indicate that the hierarchical dynamics were derived from an interpersonal footstep entrainment process and an intrapersonal interaction of arm and footstep motions. We suggest that embodied interactions in cooperative walking are achieved by a dual-hierarchical control structure related to emergence of the phase-control function of interpersonal cooperative walking, based on an automatic control mechanism for interpersonal entrainment of footstep motions and an intrapersonal voluntary-motion-control mechanism.

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