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this will tone you and rip you into shape. I had a soccer season at san diego state and on top of those practices i had this going for me. It brought back my stamina up noticeably
but p90x, unlike insanity has weights involved and a pull up bar. the workouts are much longer and your muscle mass will improve a lot more than insanity.
insanity just defines your muscles more than they already are,
p90x does the same, but also increases your muscle size
i recommend maybe 2 weeks to 1 month of running every other day prior to doing any of these so your body wont be
