Cardio For Lifters Without Losing Muscle

The myth that cardio kills muscle is mostly nonsense. The real culprit is undereating. Eat enough, lift heavy, and you can add 2–4 cardio sessions per week with zero muscle loss.

Best options for lifters: incline walking, stationary bike, stair climber. Keep heart rate at 120–140 bpm for 25–40 minutes.