Training Theory
Train to Failure or Leave Reps in Reserve? Match Your RIR to Your Goal
Training to failure isn't always optimal; the best approach depends on your goal. For muscle growth, training close to failure (1-3 RIR) offers a modest benefit, while for strength, leaving 3-5 reps in reserve is equally effective and better for recovery.
Elena Pappas·October 23, 2026
