Gazing at the "Absolute Control" skill effect introduction displayed on the panel, a look of understanding flashed in Fang Cheng's eyes.
From the perspective of sports dynamics, the training of pull-ups is one of the ultimate exercises for honing grip strength.
It requires the trainee to firmly grasp the support with their fingers, relying on the concentric and eccentric contraction forces of the forearm muscles to counteract their own weight.
This process deeply stimulates the flexor digitorum superficialis, flexor digitorum profundus, and even the palmaris longus, the core muscle groups in the hand.
During the dynamic phase of pull-up practice, that is, when pulling the body upward, the fingers and palms must actively tighten, generating explosive grip strength to fight gravity.
In the static hanging phase, the hand must continuously perform isometric contraction to maintain body stability, which trains the endurance of grip strength.
