Functional muscle group- and sex-specific parameters for a three-compartment controller muscle fatigue model applied to isometric contractions

2021 ◽  
Vol 127 ◽  
pp. 110695
Author(s):  
Ritwik Rakshit ◽  
Yujiang Xiang ◽  
James Yang
Keyword(s):  
Muscle Fatigue ◽  
Muscle Group ◽  
Isometric Contractions ◽  
Fatigue Model

Nonlinear Control of NMES: Incorporating Fatigue and Calcium Dynamics

2009 ◽  
Author(s):  
N. Sharma ◽  
P. M. Patre ◽  
C. M. Gregory ◽  
W. E. Dixon
Keyword(s):  
Muscle Fatigue ◽  
Neuromuscular Electrical Stimulation ◽  
Isometric Contractions ◽  
Calcium Dynamics ◽  
Nonlinear Controller ◽  
Promising Technique ◽  
Current Effort ◽  
Model Mismatch ◽  
Fatigue Model ◽  
Femoris Muscle

Neuromuscular electrical stimulation (NMES) is a promising technique that has the potential to restore functional tasks in persons with movement disorders. Clinical and commercial NMES products exist for this purpose, but a pervasive problem with current technology is that overstimulation of the muscle (among other factors) leads to muscle fatigue. The objective of the current effort is to develop a NMES controller that incorporates the effects of muscle fatigue through an uncertain function of the calcium dynamics. A neural network-based estimate of the fatigue model mismatch is incorporated in a nonlinear controller through a backstepping based method to control the human quadriceps femoris muscle undergoing non-isometric contractions. The developed controller is proven to yield uniformly ultimately bounded stability for an uncertain nonlinear muscle model in the presence of bounded nonlinear disturbances (e.g., spasticity, delays, changing load dynamics).

scholarly journals New dynamic muscle fatigue model to limit musculo-skeletal disorder

2016 ◽  
Author(s):  
Deep Seth ◽  
Damien Chablat ◽  
Fouad Bennis ◽  
Sophie Sakka ◽  
Marc Jubeau ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Fatigue Model ◽  
Skeletal Disorder

scholarly journals Human Muscle Fatigue Model in Dynamic Motions

2012 ◽  
pp. 349-356 ◽  
Author(s):  
Ruina Ma ◽  
Damien Chablat ◽  
Fouad Bennis ◽  
Liang Ma
Keyword(s):  
Muscle Fatigue ◽  
Human Muscle ◽  
Fatigue Model ◽  
Human Muscle Fatigue

Perceived Exertion in Isometric Muscular Contractions Related to Age, Muscle, Force Level and Duration

1992 ◽  
Vol 36 (10) ◽  
pp. 712-716 ◽  
Author(s):  
Joseph M. Deeb ◽  
Colin G. Drury
Keyword(s):  
Perceived Exertion ◽  
Muscle Force ◽  
Age Groups ◽  
Muscle Group ◽  
Isometric Contractions ◽  
Age Group ◽  
Perceived Effort ◽  
Muscle Groups ◽  
Different Levels

This research was concerned with studying the development and growth of perceived effort of long-term isometric contractions as a function of muscle group (biceps vs quadriceps), of subjects with different age groups (20–29 vs. 50–59 years old) on long-term muscular isometric contractions (5 minutes) at different levels of %MVC (20, 40, 60, 80 and 100 %MVC). An experiment testing 20 subjects each performing 10 conditions (two muscle groups × five levels of %MVC) showed that the older age group reported Significantly higher perceived exertion at higher levels of %MVC and across time. Furthermore, subjects experienced a higher and faster increase in their perceived exertion when the level of %MVC and time increased.

Physiology-based dynamic muscle fatigue model for upper limbs during construction tasks

2020 ◽  
Vol 78 ◽  
pp. 102984
Author(s):  
Houtan Jebelli ◽  
JoonOh Seo ◽  
Sungjoo Hwang ◽  
SangHyun Lee
Keyword(s):  
Muscle Fatigue ◽  
Upper Limbs ◽  
Fatigue Model ◽  
Construction Tasks
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