Get Your Priorities Straight

 HYPOTHESIS  The Weider Muscle Priority Training Principle dictates that muscle groups that you are trying to zero in on should be trained first in your workouts, because that’s when those muscles are the strongest and not fatigued. This maxim is essential when you’re trying to bring up certain muscle groups, because it allows you to train them with heavier weight and higher intensity.  RESEARCH  Brazilian researchers performed a study in which men trained their u