OBJECTIVES: To determine if packweight, anthropometry, and individual characteristics are related to acute musculoskeletal and soft tissue injuries while wearing backpacks on wilderness expeditions. METHODS: This was a review of prospectively gathered data on participants and instructors enrolled in National Outdoor Leadership School Rocky Mountain hiking courses between March 2008 and October 2009. Packweight, height, body weight, age, and gender were collected. Individuals that suffered acute musculoskeletal and soft tissue injuries while hiking with a backpack were recorded and compared to individuals that did not suffer injuries. Logistic regression was used to determine which variables were significantly correlated with injuries. Odds ratios with associated confidence intervals and p-values are reported. RESULTS: One thousand two hundred and one individuals were included in the final analysis. Twenty-six individuals of this population suffered reportable musculoskeletal and soft tissue injuries while hiking with a pack. None of the factors examined (packweight, height, body weight, age, gender, or packweight to body weight ratio) were significant in predicting acute injury. CONCLUSIONS: Based on our results, an individual's packweight, anthropometry, and individual characteristics neither increase nor decrease their risk of experiencing a musculoskeletal or soft tissue injury while hiking with a backpack. Other factors, including fitness, pretrip training, and footwear, should be examined to determine appropriate strategies to reduce significant musculoskeletal and soft tissue injuries on wilderness expeditions.
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Hamonko et al. (2011) studied this question.
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