Blair P. Houghton wrote:
Should I continue to do my exercises the way I was taught in JHS?
Of course. Pushups have to be all the way to the ground and up,
straight back, and slow reps to get the proper contraction.
The U.S. Army teaches pushups go as low as horizontal
upper arms. Not all the way to the ground.
Of course, there's nothing wrong with extending your range
of motion when exercising.
But "have to" is kind of subjective.
well, the lower you go the harder each pushup is, the better results you
get. I speak about it, because I do it.