Ergonomic effects of load carriage on energy cost of gradient walking

Daijiro Abe; Satoshi Muraki; Akira Yasukouchi

doi:10.1016/j.apergo.2007.06.001

Ergonomic effects of load carriage on energy cost of gradient walking

Daijiro Abe, Satoshi Muraki, Akira Yasukouchi

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

We examined the effects of load on the energy cost of walking (C_w), being defined as the ratio of the 2-min steady-state oxygen consumption to the speed, and economical speed (ES) during level and gradient walking. Ten men walked on a treadmill at various speeds with and without a load on their back at 0% and ±5% gradients. Significantly lower C_w values were observed only when the load was carried on the back during level walking at slower speeds. The ES was significantly decreased by less than 5% when the load was carried on the back. Significant gradient differences were also observed in the ES in the load and no load conditions. These results would be applicable to a wider range of occupational and leisure tasks.

Original language	English
Pages (from-to)	144-149
Number of pages	6
Journal	Applied Ergonomics
Volume	39
Issue number	2
DOIs	https://doi.org/10.1016/j.apergo.2007.06.001
Publication status	Published - Mar 2008

All Science Journal Classification (ASJC) codes

Human Factors and Ergonomics
Physical Therapy, Sports Therapy and Rehabilitation
Safety, Risk, Reliability and Quality
Engineering (miscellaneous)

Access to Document

10.1016/j.apergo.2007.06.001

Cite this

@article{fb7919ce8ce14c51aa24da9afae8b20a,

title = "Ergonomic effects of load carriage on energy cost of gradient walking",

abstract = "We examined the effects of load on the energy cost of walking (Cw), being defined as the ratio of the 2-min steady-state oxygen consumption to the speed, and economical speed (ES) during level and gradient walking. Ten men walked on a treadmill at various speeds with and without a load on their back at 0% and ±5% gradients. Significantly lower Cw values were observed only when the load was carried on the back during level walking at slower speeds. The ES was significantly decreased by less than 5% when the load was carried on the back. Significant gradient differences were also observed in the ES in the load and no load conditions. These results would be applicable to a wider range of occupational and leisure tasks.",

author = "Daijiro Abe and Satoshi Muraki and Akira Yasukouchi",

note = "Funding Information: This study was supported by a Grant-in-Aid for Young Scientist (B) from the Japan Ministry of Education, Culture, Sports, Science and Technology (Grant no. 17770217 to D.A.) and in part by the Nakatomi Foundation (to D.A.).",

year = "2008",

month = mar,

doi = "10.1016/j.apergo.2007.06.001",

language = "English",

volume = "39",

pages = "144--149",

journal = "Applied Ergonomics",

issn = "0003-6870",

publisher = "Elsevier Limited",

number = "2",

}

TY - JOUR

T1 - Ergonomic effects of load carriage on energy cost of gradient walking

AU - Abe, Daijiro

AU - Muraki, Satoshi

AU - Yasukouchi, Akira

N1 - Funding Information: This study was supported by a Grant-in-Aid for Young Scientist (B) from the Japan Ministry of Education, Culture, Sports, Science and Technology (Grant no. 17770217 to D.A.) and in part by the Nakatomi Foundation (to D.A.).

PY - 2008/3

Y1 - 2008/3

N2 - We examined the effects of load on the energy cost of walking (Cw), being defined as the ratio of the 2-min steady-state oxygen consumption to the speed, and economical speed (ES) during level and gradient walking. Ten men walked on a treadmill at various speeds with and without a load on their back at 0% and ±5% gradients. Significantly lower Cw values were observed only when the load was carried on the back during level walking at slower speeds. The ES was significantly decreased by less than 5% when the load was carried on the back. Significant gradient differences were also observed in the ES in the load and no load conditions. These results would be applicable to a wider range of occupational and leisure tasks.

AB - We examined the effects of load on the energy cost of walking (Cw), being defined as the ratio of the 2-min steady-state oxygen consumption to the speed, and economical speed (ES) during level and gradient walking. Ten men walked on a treadmill at various speeds with and without a load on their back at 0% and ±5% gradients. Significantly lower Cw values were observed only when the load was carried on the back during level walking at slower speeds. The ES was significantly decreased by less than 5% when the load was carried on the back. Significant gradient differences were also observed in the ES in the load and no load conditions. These results would be applicable to a wider range of occupational and leisure tasks.

UR - http://www.scopus.com/inward/record.url?scp=36849061601&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36849061601&partnerID=8YFLogxK

U2 - 10.1016/j.apergo.2007.06.001

DO - 10.1016/j.apergo.2007.06.001

M3 - Article

C2 - 17767912

AN - SCOPUS:36849061601

SN - 0003-6870

VL - 39

SP - 144

EP - 149

JO - Applied Ergonomics

JF - Applied Ergonomics

IS - 2

ER -

Ergonomic effects of load carriage on energy cost of gradient walking

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this