Flexibility Flashcards
Define flexibility.
The range motion around a joint or a series of joints.
Define static flexibility.
The range of motion around joint without accounting for speed.
Define dynamic flexibility.
The range of motion around a joint which occurs in the performance of a physical activity at either normal or rapid speed.
Name 12 factors affecting flexibility.
- Joint type
- Joint shape
- Length of connective tissue
- Muscle elasticity
- Age
- Gender
- Elasticity
- Temperature
- Muscle mass
- Nerves
- Hypermobility
- Flexibility training
Explain how joint type effects flexibility.
- Ball and socket = full ROM
- Pivot = only allows rotation
- Hinge = only allows flexion and extension
Explain how joint shape effects flexibility.
The arrangement, shape and alignment or the joints’ articulating surfaces/bones dictate ROM.
E.G. the shoulder joint has an increased ROM having a shallow joint cavity compared with the hips deeper cavity which limits ROM but increases stability.
Explain how the length of connective tissues effects flexibility.
E.G. tendons, ligaments, fascia and joint capsule all limit ROM.
Explain how muscle elasticity effects flexibility.
The muscle spindles activation point before it initiates the stretch reflex prevents further ROM.
Explain how gender effects flexibility.
Females are naturally more flexible.
Explain how age effects flexibility.
- Flexibility is greater in children.
- Decreases with age due to the decrease in elasticity of muscle and connective tissue.
Explain how temperature effects flexibility.
Elasticity of muscles and connective tissues are increased as temperature increases by 1-2 degrees celsius.
Explain how muscle mass effects flexibility.
Excess muscle mass around a joint restricts joint ROM.
Explain how nerves effects flexibility.
Nerves pass through the joints - as joints are taken through a full ROM, nerves become stretched or compressed and trigger a stretch reflex within the muscles, increasing their resistance to stretch.
Explain how hypermobility effects flexibility.
Inherited (double-jointed) or trained factors increasing ROM but can lead to joint instability and the increased risk of injury.
Explain how flexibility training effects flexibility.
Stretching within a training programme may maintain and increase ROM.