Reps vs. Time Under Tension: A Trainer Explains The Best Way to Build Muscle originally appeared on Men's Fitness. I’ve been a certified personal trainer (C.P.T.) for 15 years. In this ...
Promo Image of the Rep2max rep counting device. A fitness device set to launch in 2024, designed to count repetitions by tracking both reps and sets, while also monitoring the duration of rest periods ...