Stretcher is a kind of equipment suitable for mass fitness. The advantage of using a stretcher is that biceps brachii is a muscle with two muscle heads, and its main function is to bend the arm. Another muscle, the triceps brachii, is also used when bending the arm. However, only when doing some forearm lifting exercises, such as bending the high-position puller or anti-high-position puller toys, can the brachial muscles be fully exercised. In addition, the flexor brachialis, the main muscle of the upper forearm, also plays a lot of roles in arm flexion, which can be strengthened by lateral bending of the tensioner.

How to use the spring tensioner

Positive position pull

Stretch your arms forward, bend your elbows slightly, and don't exceed your eyes. Stretch to both sides. Don't move your body back and forth too much, so as not to lend your strength. If it doesn't work, you'd better reduce the spring to ensure the action is in place.

pull up

The action is as before, but the height is above the head, and the feeling of pulling to both sides, the main chest training, the spring can be appropriately increased than the normal position.

Lift with one hand

Stand with your feet in parallel, step one end of the spring under your right foot, hold the other end of the spring tightly, keep your upper arm still, forcibly lift your forearm up and stretch it up and down repeatedly.

Defender pull

Check your feet in parallel, separate your legs, and pull the two hand-held tensioners at the back to both sides, repeatedly. This action is mainly to practice shoulders.

Staggered backward pull

Stand with your feet parallel and your legs apart. Pull the two hand-held tensioners up and down at the back, gently relax after reaching the limit, and repeat.

Benefits of use

Biceps biceps brachii is a muscle with two muscle heads, and its main function is to bend the arm. Another muscle, the brachialis, is also used when bending the arm. However, the brachial muscle can only be exercised when doing some forearm lifting exercises, such as bending the high-position puller or anti-high-position puller toys. In addition, the brachioradialis muscle, the main muscle of the upper forearm, also plays a lot of roles in arm bending. The brachioradialis muscle can be strengthened by lateral bending of the stretcher.