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Energy expenditure in level and grade walking

Bobbert, A. C.·1960·Journal of Applied Physiology
DOI 10.1152/jappl.1960.15.6.1015
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Abstract

An empirical formula was developed from which mean values for energy expenditure per kilogram of body weight (Ew) can be calculated for groups of normal adult males, walking on a motor-driven treadmill with speeds in the range of 35–115 m/min. and gradients in the range of 0–12 degrees. The formula was derived from experiments with two subjects. From the results it appears that Ew increases with the square of speed both in level and grade walking and that log Ew increases linearly with the geometric angle (in degrees). The validity of the formula was tested by experiments with 4 other subjects and experimental data from the literature. A close agreement between actual and predicted values was found. Factors influencing individual values for Ew are discussed. A diagram is presented from which Ew may be read off for various combinations of gradient and speed. Submitted on September 17, 1959

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  • The validity of existing explanations for the substantial differences in walking economy observed across different surface gradients is largely unknown.

    “Finally, the validity of existing explanations for the substantial differences in walking economy observed across different surface gradients (3,8,49,54,56) is largely unknown.”

    From Walking economy is predictably determined by speed, grade, and gravitational load. (2017) · cites this paper as [8]

  • The inability of skeletal muscle to convert lost gravitational potential energy into accumulated chemical energy reveals the physiologically unsound foundation of this prevailing approach.

    “The inability of skeletal muscle to convert lost gravitational potential energy into accumulated chemical energy reveals the physiologically unsound foundation of this prevailing approach (3,8,17,25,56,78).”

    From Walking economy is predictably determined by speed, grade, and gravitational load. (2017) · cites this paper as [8]

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Metadata

Authors
Bobbert, A. C.
Venue
Journal of Applied Physiology
Publisher
American Physiological Society
Published
1960-11-01
Volume
15
Issue
6
Pages
1015-1021
ISSN
  • 8750-7587
  • 1522-1601
DOI
10.1152/jappl.1960.15.6.1015
Cited by
114
References
0
Language
en

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