Parallel bar arm flexion and extension: main muscles exercised and key points

　　Parallel bar flexion and extension is a classic fitness movement that many people practice, but it is mainly exercise Which muscles and how to exercise them correctly are poorly understood. The following is a detailed introduction to the muscles mainly exercised by parallel bar arm extension and related key points.

Main muscles exercised by parallel bar dips and extensions

　　pectoralis major: Parallel bar dips and extensions have a good exercise effect on the pectoralis major muscles. When we do this action, our body leans forward, our shoulder joints extend forward, and the pectoralis major muscle will fully contract and stretch during the action. Especially during the descent phase, the pectoralis major muscle is lengthened, and during the push-up phase, concentric contraction occurs, which helps to enhance the strength and dimension of the pectoralis major muscle.

　　triceps brachii: The triceps brachii is one of the important force-generating muscles in parallel bar arm flexion and extension. During the push-up phase of the movement, the triceps need to contract to straighten the arm and bear a large part of the force. Through continuous training, you can effectively stimulate the growth of the triceps brachii and make the arm lines tighter.

　　anterior deltoid: The anterior deltoid muscles are also involved in parallel bar arm extensions. It helps stabilize the shoulder joint during the movement and provides a certain amount of assistance when pushing up. Proper training can enhance the strength of the anterior deltoid muscles and make the shoulders look fuller.

Action standards and key points

　　body posture: Keep your body straight on the parallel bars and lean forward slightly, avoiding leaning back or bending too much. The feet can be crossed or straightened to maintain body stability.

　　Decline: When descending, try to lower your body to a position where your chest is close to the parallel bars to fully stretch your pectoralis major and triceps muscles, but be careful not to drop too much and cause shoulder injury.

　　push up: When pushing up, use the strength of the pectoralis major, triceps brachii, and anterior deltoid muscles to push the body back to the starting position. Maintain stability during exertion and avoid shaking.

Training precautions

　　Weight selection: Choose the appropriate weight according to your actual situation. If you are a beginner, you can start with freehand training and gradually increase the difficulty.

　　progressive loading: As the level of training increases, gradually increase the load of training, such as increasing weight or reducing rest time, to continuously stimulate muscle growth.

　　fatigue management: Pay attention to reasonable arrangement of training plans to avoid excessive fatigue. Give your body enough recovery time to prevent injury.

　　Parallel bar arm flexion and extension is a compound movement that can effectively stimulate multiple muscles. When exercising, you should pay attention to the movement standards and force sequence to achieve better training results.