An energy 'sources' and 'fractions' approach to the mechanical energy expenditure problem--IV. Criticism of the concept of 'energy transfers within and between links'.

Abstract:

:The methods of evaluation of mechanical energy economy during human movement based on the calculation of three different values of work (Wwb, Ww, Wn), corresponding to three hypothetical types of energy exchange, are subject to criticism. Only the value of work, Wwb, calculated under the assumption of energy transfers between links and energy transformations within links, can be useful as the lowest limit of mechanical energy expenditure (MEE) for the control (for the cases when the powers of the external sources are equal to zero). In the particular case when all of the joint powers Mi,i+1 (phi i+1 -phi i) have the same signs and all sources of external energy are absent, Wwb equals the MEE for the control.

journal_name

J Biomech

journal_title

Journal of biomechanics

authors

Aleshinsky SY

doi

10.1016/0021-9290(86)90006-0

subject

Has Abstract

pub_date

1986-01-01 00:00:00

pages

307-9

issue

4

eissn

0021-9290

issn

1873-2380

pii

0021-9290(86)90006-0

journal_volume

19

pub_type

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