8 factors influencing g flexibilty
- Age
- Gender
- Activity level
- Excess muscle
- Injury
- Dominance
- Genetics
- Joint structure
What are the 3 types of joints
- Diarthrodial
- Amphiarthrodial —> back pelvis
- Synarthrodial —> skull
4 types of Diarthrodial joints with examples
- Ball and socket (hip and shoulder)
- Saddle —> no rotation (fingers)
- Pivot —> only rotation (head)
- Hinge —> flexion (ankle)
What is the key to developing flexibilty
Muscle tissue
What’s collagen
White fibres that provide structure and support in the connective tissue
What is elastin
Yellow fibres that make connective tissue flexible
What are proprioceptors and how do they react to flexibility
- nerves that send info about the muscular and skeletal systems to the nervous system
- controls speed, strength and coordination of muscle contractions
- Proprioceptors detect amount of stretch in muscle length
- Nerves send signal to spinal cord
- Spinal cord sends back to muscle
- Muscle resist stretch
Passive vs active stretching
Passive —> using outside force
Active contracting opposite muscle
Functions of spine
- Structural Support
- Protects spinal cord
- Support body weight
- Attachment site
- Movemnet
What does the spine consist of
- 7 cervical
- 12 thoratic
- 5 lumbar
- 5 fused sacrum
- 4 fused coccyx
4 spinal curves
- Cervical
- Thoratic
- Lumbar
- Sacral
Parts of vertebrae
Intervertabral disk—> shock absorber
Vertabral arch—> surrounds and protects spine
Vertaral body —> carries stress of weight
Nerve root —> base of 31 spinal nerves
Elastic vs plastic elogation
Elsatic —> temporary lengthening
Plastic—> long term lengthening
