UNIT 6: Flexibility and Mobility Flashcards
What is the difference between Flexibility and Mobility?
What is ROM of Passive vs Active Movements?
What is ROM?
the ability of a joint to move through its full range of motion
What 2 factors determine Flexibility?
Joint Structure
&
Muscle Structure
Factors determining flexibility
What is Joint Structure?
What are Joint Capsules?
Factors determining flexibility
What is Muscle Structure?
What 3 connective Tisse determine it?
What is Joint health?
What can cause deterioration?
What are The effects of stretch on the
connective tissue?
If stretched gently and regularly, muscle tissue and connective tissues may lengthen and flexibility may improve
Regular stretching may lengthen the muscle fibres through the addition of contractile units called sarcomeres
What other factors affect flexibility and mobility?
5
Age
Gender
Temperature
Muscle bulk
Activity
Nervous System activity
What are Proprioceptors?
specialized cells within muscles that send info to the nervous system
Which receptors control muscle length?
Stretch receptors
What causes the muscle to relax?
Neuromuscular mechanisms
What is The Role of the Stretch Reflex?
- The muscle spindle is a long thin nerve receptor found within the muscle: monitors muscle length and the speed of lengthening.
- When a muscle is stretched quickly this muscle spindle fires and causes a reflexive contraction within that muscle that is undergoing the
stretch. The greater the speed of stretch, the stronger the reflex contraction in the muscle being stretched
Neuromuscular mechanisms
What is Reciprocal Inhibition?
- inhibition of the antagonist muscle group is mediated by the muscle spindle. If the agonist muscle contracts, then the spindle fires, sending messages to the spinal cord causing the antagonist muscle to relax.
- Happens during dynamic stretching
- If not, both muscles contract – muscle tears
What are the mechanisms of The contraction of a muscle?
The contraction of a muscle in response to its stretch or tension
Neuromuscular mechanisms
What is Autogenic Inhibition?
What is The golgi tendon organ (GTO)?
Autogenic Inhibition
* The golgi tendon organ (GTO) is a nerve receptor found in tendons. This receptor fires when tension increases within the tendon (due to stretch or contracting muscle). When the GTO fires, a signal is sent to the spinal cord causing the agonist muscle to relax.
- Happens during static stretching: After 7-10s, muscle tension increases and activates the GTO, causing the muscle spindle in the stretched muscle to be inhibited temporarily, which makes it possible to stretch the muscle further.
Summary
What are the benefits of stretching?
More benefits of Stretching:
More on benefits
EVEN MORE BENEFITS
