bicept
cartalige
Flexor
Flexor
extensor
By tensing.
The type of muscle that bends a joint is called a flexor muscle. Flexor muscles contract to decrease the angle between two bones at a joint, facilitating movements like bending the elbow or knee. These muscles work in opposition to extensor muscles, which increase the angle at a joint.
This type of muscle contracts to bend a limb at a joint
The Pumgo mainly strengthens your calf muscle.
kegal excersize
gliding joint
bicep curls
rotation