It takes more effort to flex than to relax, so obviously there's an additional consumption of energy involved while flexing. So it burns more calories to flex than not to flex. Therefore, it speeds up metabolism, even if only slightly and temporarily. So yes.
biceps brachii muscle.
The muscle in your arm contracts. The muscle on the other side of your arm, opposite from the side that you are flexing, stretches.
Flexing Your PC Muscle - 2013 was released on: USA: 1 January 2013 (Denver, Colorado)
It is called the Sartorius muscle located in the thigh. Here is the long definition. Assists in flexing, abduction and later rotation of the hip and flexing of the knee.
Triceps and Biceps
Inn other words muscle flexing can be called muscle shortening and extension when muscle is elongating. For example when you bend you arm towards your shoulder your bicep muscle is shortening and you can feel a bump. When you extend your arm you can feel that the bump is stretching out and disappearing, that is muscle extension.
The triceps are the the large muscle at the back of the upper arm.
The only muscle capable of flexing the distal interphalangeal joints is the flexor digitorum profundus. This muscle originates from the ulna and interosseous membrane in the forearm and inserts on the distal phalanges of the fingers. It is responsible for flexing the distal interphalangeal joints while the flexor digitorum superficialis flexes the proximal interphalangeal joints.
yo femurrr
Cats do not have a psoas minor muscle. They have a psoas major muscle, which is responsible for flexing the hip joint.
The flexor digitorum superficialis muscle in the forearm is roughly the size of your fist. It is responsible for flexing the fingers.
The muscle that originates from the anterior inferior iliac spine of the hip and inserts onto the proximal end of the tibia is the sartorius muscle. This muscle is the longest muscle in the body and is responsible for flexing, abducting, and laterally rotating the hip joint, as well as flexing the knee joint.