I just started the Body for Life program and am following the exercise examples in the Body for Life book. i.e for upper body exercises, if I select "dumbbell flyes" for a chest exercise, do I stay with this chest exercise for say one week then change it the next week?
I stick with the same exercises for 3-4 weeks and then change them. Gives my body time to adapt to the exercises but not get too used to them. Seems to work for me.
Thanks for the info.