Biomechanics of normal and pathological gait: implications for understanding human locomotor control.

Abstract:

:The biomechanical (kinetic) analysis of human gait reveals the integrated and detailed motor patterns that are essential in pinpointing the abnormal patterns in pathological gait. In a similar manner, these motor patterns (moments, powers, and EMGs) can be used to identify synergies and to validate theories of CNS control. Based on kinetic and EMG patterns for a wide range of normal subjects and cadences, evidence is presented that both supports and negates the central pattern generator theory of locomotion. Adaptive motor patterns that are evident in peripheral gait pathologies reinforce a strong peripheral rather than a central control. Finally, a three-component subtask theory of human gait is presented and is supported by reference to the motor patterns seen in a normal gait. The identified subtasks are (a) support (against collapse during stance); (b) dynamic balance of the upper body, also during stance; and (c) feedforward control of the foot trajectory to achieve safe ground clearance and a gentle heel contact.

journal_name

J Mot Behav

authors

Winter DA

doi

10.1080/00222895.1989.10735488

keywords:

subject

Has Abstract

pub_date

1989-12-01 00:00:00

pages

337-55

issue

4

eissn

0022-2895

issn

1940-1027

journal_volume

21

pub_type

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