About 5 sets of 20 when i can be bothered. I used to be able to do a lot more before i got lazy
Anyway, i hope you aren't doing them all at once. It's best to do quick bursts, stop, do something else in quick bursts (arm curls, push ups etc) and go back to and do another set of 10-20 reps. Atleast that's what i was always told.
Bookmarks