Agricultural and Biosystems Engineering Publications

Campus Units

Agricultural and Biosystems Engineering, Kinesiology

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

2-25-2010

Journal or Book Title

Ergonomics

Volume

53

Issue

3

First Page

355

Last Page

364

Research Focus Area(s)

Occupational Safety Engineering

DOI

10.1080/00140130903402234

Abstract

The purpose of this study was to determine the effects of age, load amount and load symmetry on lower extremity kinematics during carrying tasks. Forty-two participants in four age groups (8–10 years, 12–14 years, 15–17 years and adults) carried loads of 0%, 10% and 20% body weight (BW) in large or small buckets unilaterally and bilaterally. Reflective markers were tracked to determine total joint range of motion and maximum joint angles during the stance phase of walking. Maximum hip extension, hip adduction and hip internal rotation angles were significantly greater for each of the child/adolescent age groups as compared with adults. In addition, maximum hip internal rotation angles significantly increased when carrying a 20% BW load. The observation that the 8–10-year-old age group carried the lightest absolute loads and still displayed the highest maximum hip internal rotation angles suggests a particular necessity in setting carrying guidelines for the youngest children.

Comments

This is an Accepted Manuscript of an article published by Taylor & Francis in Ergonomics on 25 Feb 2010, available online: DOI: 10.1080/00140130903402234. Posted with permission.

Copyright Owner

Taylor & Francis

Language

en

File Format

application/pdf

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