We’re suppose to lift with our legs, but whats makes our back not suitable for it. Silly question i know.
In: Biology
Imagine a lever. When bending down to pick something up your torso becomes the lever with its rotary bit at your hips. As you might know, you have more force when working a longer lever. So by bending over you give the weight a greater lever. Similar to standing somewhere high and pulling a weight up on a rope, or having the same weight on the end of a long stick and trying to lift it to your height.
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