When you have to carry a heavy backpack, it is important to lift it up and lower it correctly. Otherwise you can injure yourself. Wrong lifting can cause back pain or shoulder injury. In the military you don't always get proper instructions and a lot can happen. So here is my prefered method on how I pick up my rucksack and how I work with it.
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Негізгі бет Тәжірибелік нұсқаулар және стиль How to lift up a heavy military backpack
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