Sources:
http://mtntactical.com/knowledge/1-pound-on-your-foot-equals-5-pounds-on-your-back-the-5-hiking-thumb-rules/
https://www.tandfonline.com/doi/pdf/10.1080/00140138408963563?needAccess=true
https://www.seattletimes.com/nation-world/weight-of-war-gear-that-protects-troops-also-injures-them/
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