we used to call them super 7's (instead of 21's) I havent done them in years but
every once in a while I'll see someone doing them. Think I'll throw in a set next time.
does anyone do 21's anymore? I used to do them years ago... you do 7 reps with a limited range of motion only coming 1/2 of the way up and then 7 reps from the middle to the top and then 7 full reps.
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