The deltoid muscle is located around the shoulder joint and is composed of three bundles: the front, middle and rear bundles. Raise the dumbbell sideways and open your arms to both sides as wide as the dumbbell. This is a specific training method for the middle bundle of the deltoid muscle. practise.
1. Starting posture:
When doing the starting posture, Hold dumbbells with both hands, bend your legs slightly, lean forward slightly, and bend your elbows slightly.
2. Movement skills:
Exhale and open your arms without moving The angle of the elbows, then inhale and retract the arms back to the starting position, and lift upwards in this way. The shoulders, elbows and wrists form a single straight line in the upper movement, and the position of the little finger is higher than the position of the thumb. Try to twist your trunk as little as possible, as inertia will greatly reduce the efficiency of training. Please do not put your hands down completely, and do not shake your body too much, otherwise you will not feel the deltoid muscles being exercised. When you inhale, put it down smoothly, and when you go up, exhale.