Multi-cable gear can be worn around the upper arm, wrist, or ankle. Regarding the upper body, the weight is usually held in the palm of the hand, so the inevitable movement of gripping occurs.
Especially when training for back muscles, it is nearly impossible to loosen or release your grip (the hook power grip, which has been on the market for a long time, is possible), so you can use the attached strap of your gear to attach it to the bar grip. , since you can safely release your hands, the force that was previously dispersed in your upper arms and forearms is now concentrated on your back.
This is a very useful piece of gear for people who are suffering from forearm fatigue or injuries, or those who have hurt their elbow joints.
This idea can be applied to other parts of the body and you will experience similar effects. Multi-joint exercises in normal training become single-joint exercises with gears, and the load can be applied directly to the target area, making it possible to fatigue the muscles with less weight than during normal training. By straddling one joint, this gear allows you to more directly feel the load and reduce the strain on your joints, making it possible to practice an ideal training style.