Hypothetical neural control of human bipedal walking with voluntary modulation

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A hypothetical neuromusculoskeletal model is developed to simulate human normal walking and its modulated behaviors. A small set of neural periodic patterns drive spinal muscle synergies which in turn lead to specific pattern of muscle activation and supraspinal feedback systems maintain postural balance during walking. Then, the model demonstrates modulated behaviors by superimposing voluntary perturbations on the underlying walking pattern. Motions of kicking a ball and obstacle avoidance during walking are simulated as examples. The superposition of the new pulse command to a set of invariant pulses representing spino-locomotor is sufficient to achieve the coordinated behaviors. Also, forward bent walking motion is demonstrated by applying similar superposition. The composition of activations avoids a complicated computation of motor program for a specific task and presents a simple control scheme for different walking patterns.
Publisher
SPRINGER HEIDELBERG
Issue Date
2008-02
Language
English
Article Type
Article
Keywords

CENTRAL PATTERN GENERATOR; MUSCULO-SKELETAL SYSTEM; SPINAL-CORD; MUSCLE SYNERGIES; HUMAN LOCOMOTION; MOVEMENT; MODEL; CEREBELLUM; COORDINATION; CONSTRUCTION

Citation

MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, v.46, pp.179 - 193

ISSN
0140-0118
DOI
10.1007/s11517-007-0277-8
URI
http://hdl.handle.net/10203/90656
Appears in Collection
CS-Journal Papers(저널논문)
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