Contracting or squeezing the target muscle through the movement. Holding the weight midway through a movement in an isometric exercise . Big sets of 15 or 20 reps. Holding the peak part of the rep, as in the bottom of a lunge. Brief rests between sets.
Light weights provide a much better opportunity to isolate a muscle.
The size of the weight matters less than the execution. Let's say you're doing a dumbbell bench press. If your elbows are pinned to your sides instead of out away from the body, you won't engage your pecs. You'll fire only your front shoulder muscles. Copyright 1999-2001 MyPrimeTime, All Rights Reserved.