Q: I’ve made the best gains of my life the past year with X Reps, going from 185 to just under 200 pounds. But my gains have stalled. You talk a lot about muscle adaptation, so I’m wondering if I’ve adapted to X Reps. Should I stop doing them for a while so I can pack on more muscle?
A: Adaptation to training techniques and even bodypart routines can happen in as few as six workouts. If you train a muscle twice a week, that means you can adapt in three to four weeks. We’ve talked about phase training, which is downshifting intensity for one week with sub-failure workouts after four to six weeks of all-out workouts. But sometimes even that’s not enough to kick-start new gains once you resume a high-intensity phase. Usually, you have to mix things up somehow…