>>13053787I suspect it will be less efficacious than weightlifting for certain muscles for which the antagonistic muscles may not be naturally as strong. Calves are an obvious example - the ankle extending muscles on the back (the bigger ones) are obviously naturally stronger than the flexors on the front so when I do calf exercises I find the muscles on the front are worked the hardest. For muscles that are more equivalent, such as the biceps/triceps, it would make sense for it to work well for both and that has been my experience so far. For some muscles, exercise choice may be important. Doing 'chest flyes' where my chest works against my rear-delt and other back muscles, my rear-delts are worked harder than my chest. But if I mimic a dip movement, it seems that my chest has to instead work against my stronger upper back/trap muscles which results in a better chest workout.
I'm mostly getting really into this form of exercise because my shoulders would always get fucked from pushups and pullups when doing bodyweight exercises. Doing flexercise, my joints aren't really loaded so they don't get hurt, although if I flex really hard sometimes stuff can pop a little bit.
I do wonder if, even with the issues that I highlighted above, it might actually be better to exercise this way in the name of balance. Eg. while it may be harder to work chest as opposed to rear-delts, this may actually be beneficial biomechanically although your chest may not be as developed as you wish.
