I make bodybuilding sport and i wan to have bigger arms and legs mucscle. my abs getting bigger not the arms or legs. what should i do?

Nutrition: Nutrition is key to building lean muscle. If weight lifting aim for 1.4 mg/kg of lean protein per day, complex carbohydrates (amount can vary depending in age/size/training) and essential fats (omega-3). Post-workout is important to get quick-absorbing whey-based protein source, lots of water. Train hard!

Agree w Dr Calendine: Going for big guns. These exercises help to build arm muscle: push downs, pin presses, dumbbell wrist curls, dips, rolling extensions, barbell wrist curls, preacher curls, chin ups, lying barbell triceps extensions, thick grip curls, concentration curls & lying dumbbell triceps extensions.