Thursday, December 3, 2009
Heart Muscle Fatigue
Since it's a muscle, have you ever wondered if your heart needs recovery during hard workouts just like skeletal muscle? I immediately think of triathletes who can train at high intensities on subsequent days by rotating cycling, running, and swimming workouts.
Don't worry- cardiac muscle has the advantage of being supplied with plenty of oxygenated blood, in addition to a greater ability to produce ATP (the compound used to create energy in muscle), giving it the ability the handle and recover quickly from high intensity workouts. In other words, your heart is VERY resistant to fatigue.
Check out the explanation here (Why does cardiac muscle not fatigue).