NEW PROGRAM: FB 3x3: Strength, HIIT, Cardio, and Core | NEW PODCAST: Trainer Talk Episode 3: Our Pre-Workout Rituals Revealed
Join for free and start building and tracking your workouts, get support from other Fitness Blender members and more!
does working out within a certain heart rate really burn more calories from fat? or is that a gimmick?
heart rates
does working out within a certain heart rate really burn more calories from fat? or is that a gimmick?