carpal,flexors extensors
* Flexor carpi ulnaris, flexor carpi radialis, palmaris longus
Function: flexion and radial deviation of the wrist, along with other muscles which flex the wrist and radially deviate the wrist, weak pronation of the forearm along with other muscles which pronate the forearm and weak flexion of the elbow along with other muscles which flex the elbow
It's about Strength Potential. When your muscles contract and shorten to flex the wrist, they lose the potential to contract more, thus they lose the abililty to create a stronger grip past a certain level. As grip is mostly a function of the muscles that flex, thus the more flexed your are, the less strength potential you have.
to make it tight
your wrist muscles
The muscles which allow you to extend your wrist and flare your fingers are the flexor muscles in the wrist and the prime movers in the fingers. These muscles will coordinate to adduct the wrist and the fingers.
There are about 20 muscles in a forearm, consisting of flexors and extensors. Flexors are responsible for flexing the forearm, wrist, and fingers.
Your hamstring muscles.
hamstring group of muscles
Hamstring
The sternocleidomastoid muscles are the ones that flex when the intercostals are flexed. This will also cause the scalene muscles to flex.
To flex your chest, you tighten the muscles that are in that area. This might include your arms or back as well, but you tighten the muscles in your chest and abs.
The muscles that are power wrist flexors are the flexor carpi radialis and flexor carpi ulnaris.