If you're into cutting, do 20 x 4 meaning 20 reps with 4 sets.
Eagle wrote >15 means repetitions that exceeds 15, in order to
do high reps you needa find a weight that enables you to complete
20 or 15 reps (depending on your rep range) with difficulty meaning
for example if you're doing 20 reps at the last few 18-20 reps
you're actually struggling with the last few reps to complete the
set. When you're doing high reps go for short rests 30 secs rest to
increase the intensity. Throughout the whole 4 sets you're using
the same weight. Thus you needa choose the correct weight that
enables what i mentioned above.
However do not only depend on doing high reps and hope that you
will acheive the chiseled look. Because doing high reps is only
mainly to help you create the cardio intensity inside weight
training, working with high reps light weight is actually training
your slow twitch muscles (muscles that aids you in endurance but
provides the least strength) and training with low reps heavy
weight is actually training your fast twitch muscles (for instance
burst of power but doesn't last long). In order to acheive cutting
you needa do cardio to burn your fats off.
wow, im always do heavy weights 10 x4.. i should start lowering
it and doing more reps huh?