title: Safe levels of manual forces for young males (1).
abstract: This is the first of a three-part series in which diagrams show the single loads or forces which can be applied safely by fit young males, standing or squatting with the back erect. Subsequent sections will cover other standing, sitting and kneeling contours.
authors.affiliation: Department of Human Biology and Health, University of Surrey, UK.
authors.forename: P R
authors.initials: PR
authors.lastname: Davis
authors.forename: D A
authors.initials: DA
authors.lastname: Stubbs