How often should you train each muscle per week? Over the last decade, a number of studies suggested that hitting each muscle twice a week is ideal and that a low frequency like working each muscle only once a week is not optimal. Recently a group of researchers carefully designed a study to help us answer this question that is still fiercely debated to this day...

For the last decade or so, one of the most researched and talked about subjects in resistance training has been volume. Specifically, how much volume optimizes muscle growth? We know that initially, when you add training volume, you gain more muscle, but then the amount of gains tapers off. But ultimately, if volume exceeds a certain level, gains flatten out and reverse direction, which indicates the point of overtraining and under-recovery. The million dollar questions are, "how much volume is enough" and could counting sets be the best way to track it?