It depends. Most beginners do a full body workouts 3 times a week. Pro bodybuilders work out each muscle group once a week. Separate days. Muscles around same area work together, when you work one out then a different one you're still using the previous one somewhat, this could put a lot of strain on some of the muscles and could lead to injuries.You need a workout schedule thats a major thing in building muscle.
if you work on one muscle to much it wont have time to heal. therefore less gains in muscle mass.
