Introduction: Carrying heavy backpack loads is often associated with shoulder discomfort or pain,
and with brachial plexus injuries underlying loss of sensorimotor functions that may
hamper performance. A modular load carrying kit (Source Co., Israel) (S), in which
a central component is a Dynamic Weight Distribution (DWD) system that allows the
soldier to easily shift the weight from the shoulders to the hips was tested for its
ability to alleviate the mechanical stresses exerted on the shoulder and impact on
relevant physiological and biomechanical variables. Following a laboratory and a controlled
field study, in which the S system was shown to be superior to the current Load Carrying
Systems (LCS) from a biomechanics and functional perspective, we aimed to investigate
the stresses and strains that develop in the soft tissues of the shoulder at the brachial
plexus area while carrying a 30 kg backpack load.
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© 2017 Published by Elsevier Inc.