Physiology Which of the following is true regarding total heat production during a muscle contraction? A Activation heat is produced when a muscle is contracting B Initial heat produced is the due of basal metabolic processes C Relaxation heat is present in both isotonic and isometric contractions D Recovery heat of muscle is greater than the initial heat 💡 Explanation Which of the following is true regarding total heat production during a muscle contraction? ✓ Correct Answer: A. Activation heat is produced when a muscle is contracting