FORCES APPLIED BY A BACKPACK ON THE SHOULDERS

  • G. Poumarat
  • J. Vacheron
  • J. Garcier
  • R. Chandezon
  • G. Vanneuville

Abstract

INTRODUCTION While the physiological responses of individuals to load carrying have been studied (Bloom et al. 1987; Evans et al. 1983), there is still a lack of information in biomecanics research focused on the forces applied to the trunk and the shoulders. The aim of this work is to present a way of measuring forces applied by a backpack to the shoulders when the subject walks for 30 min on a treadmill. MATERIALS AND METHODS Twelve subjects volunteered to participate in the experiment, four were hikers (>20 trekking/year: expert), four were occasional hikers (