Heavy weight or complete reps?

[sonja5150]

Hi Cathe! I really enjoy the Muscle Max workout. During the plie squats I use a 15 pound weight but I cannot complete all the reps. In this instance, and generally, is it more productive to lower the weights and complete the reps, or just take a break for one or two squats and then continue with the heavy weight?

Thanks for the great workouts!!!

Sonja.