Work

Real-world walking economy: can laboratory equations predict field energy expenditure?

Year: 2021

Type: article

Abstract: Here, we investigated the accuracy with which four laboratory-based equations can predict field-walking energy expenditure at freely selected speeds across varying gradients and terrain. Empirical tests involving 6,415-m trials under two load conditions indicated that predictions are significantly equation dependent but can be highly accurate (i.e., ±4%). Computations inputting identical weight, speed, and gradient values for different theoretical constant-speed trials (0.6-1.8 m/s) identified between-equation prediction differences as large as 37%.

Source: Journal of Applied Physiology

DOI: 10.1152/japplphysiol.00121.2021

Authors: Peter G. Weyand, Lindsay W. Ludlow, Jennifer J. Nollkamper, Mark J. Buller

Institutions: Southern Methodist University, U.S. Army Research Institute of Environmental Medicine, United States Army

Language: English

Topic: Cardiovascular and exercise physiology

Subfield: Physiology (medical)

Field: Medicine

Domain: Health Sciences

Open Access status: green

Funder: U.S. Army Medical Command

Award: G4832607933