target77Exercise heart rates for 77 year olds Lht to Moderate Exercise. The target pulse rate zone for a 77 year old male to burn fat during lht to moderate exercise is 72 to 99 beats per minute 1.77Check target77.fun with our free review tool and find out if target77.fun is legit and reliable. Need advice? Report scams Check ! Report a Scam Help & Info API & Data Feed en