A few studies have shown that the parallel squat is king for maximizing work and overloading on the muscles . High reps with low to moderate weight gives exercisers the least effective way to overload the lower body muscles. The deep squat can contribute to tight knee joints / kneecap pressure . With this in mind , would you put deep squats in your personal leg workout ?
if you are thinking about a traditional leg press machine studded with plates on either side – the answer is ‘no’, both for myself and for my clients.
However, if a deep squat means assisting people getting stronger in the range of motion required to get up from the floor or a low seat – absolutely. For those, I use my Total Gym on steroids (Power Tower) at a rather low setting so that the weight pressed is only a fraction of the body weight.