Flexibility Flashcards
The degree of movement (or angular distance) one limb may travel in relation to another at their axis of rotation
Range of motion
Is a measure of range of motion and has static and dynamic components
Flexibility
Possible ROM about a joint and its surrounding muscles during a passive movement
Static
Available ROM during active movements; it requires voluntary muscular actions
Dynamic
static versus dynamic flexibility
- Dynamic ROM is usually greater than static ROM, though their relationship remains unknown
- the specific sport determines whether dynamic or static ROM is more important
Begins at the muscle or tendon’s initial length and ends at its elastic limit. temporary increases in length due to applied force also increase tension, but the muscle or tendon returns to its original length once the force is removed and tension is released.
Elastic region
Muscle and tendons enter the HERE when force is applied beyond their elastic limit. when the force is removed, the muscle or tendon will not return to its original length, having permanently changed.
Plastic region
Is the last point on the curve and represents the maximum length capable of the muscle or tendon. tearing will occur beyond this point
Failure or rupture point
Degrees of muscle strain
overstretching and maybe very minor tearing
Considerable tearing of muscle fibers
Complete tearing and very noticeable
1st
2nd
3rd
-Muscle spindles are stimulated during a rapid stretching movement.
- will limit motion
stretch reflex (stretched muscles contract)
- Antogenic inhibition - active contraction before a passive stretch of the same muscle
- Reciprocal inhibition - contracting the muscle opposing the muscle that is being passively stretched
Golgi tendon reflex (Stretched muscles relax)
- Afferent fibers (belly) sense rapid stretch
- Efferent (at ends) contract muscle
Muscle spindles
- Sense tension (via stretching or resistance) placed on tendon
- relax muscle fiber
Golgi tendon organ
- Get into a position that facilitates relaxation and move to the point in the ROM where you experience sensation of MILD DISCOMFORT
- Hold for 15 to 30 sec
Static stretching
- Safe, requires very little energy expenditure, commonly known, and easy to learn
- May reduces the stretch-reflex ability and affect strength and power
Static stretching