Eli5: why is it so easy to hurt ourselves when lifting with our back compared to our legs?
In: 2
Leverage.
The muscles in our back are much smaller compared to our leg muscles. There may be more, but they don’t work together as well as the few in our leg do. Easier to set the lifting load onto a larger muscle that’s used to “lifting” something up, as opposed to our backs that mostly work sideways/twisting
Latest Answers