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antagonistic muscle action.
muscle
No , a muscle may be stretched with out movement .
by the way they are attached to the skeleton
It depends on the severity of the injury and the location. A tear in the muscle or tendon is called a strain.
Over stretched or torn
CRAMPS
boo boo strain
When a muscle is over stretched it is called hyperextension. This is sometimes called a pulled muscle. It can be anywhere from minor to severe.
The pectoralis muscle.
The injury would allow for the joint the muscles are attached to, to move in one direction...either only up becasue the lower muscle was damaged...or only down because the top muscle of the pair was damaged.
When a muscle is over stretched it is called hyperextension. This is sometimes called a pulled muscle. It can be anywhere from minor to severe.
In case of a hamstring injury, one or more of the hamstring muscles get stretched too far. It is even possible that the muscle starts to tear. One is most likely to get this injury during exercises such as running or jumping.
When one muscle pulls, the other muscle relaxes.
for biceps it is triceps
antagonistic muscles
because you suck