Biomechanics of the body Flashcards
5 functions of the skeleton
- Acts as a lever
- Attachment site for muscles
- Protection for organs
- Site for blood cell production
- Provides storage for fat and minerals
Definition of compression force
Squeezing directed through the centre of a body
Definition of tensile force
Stretching force directed through the centre of a body
Definition of bending
Combination of compression and tension
Shear force is directed _ to a surface
Parallel
Definition of torsion
Rotational force around the longitudinal axis of a body
Bone is strongest in resisting…
Compression
Bone is weakest in resisting…
Shear
4 behaviours of muscles
- Irritable
- Contractile
- Extensible
- Elastic
7 functions of muscle tissue
- Produces body movements
- Maintains body positions
- Stabilises or prevents unwanted body movements
- Controls what enters/exits the body
- Moves substances within the body
- Supports and protects organs
- Helps maintain body temperature (e.g. shivering)
7 functions of connective tissue
- Separates individual muscle fibres
- Groups bundles of muscle fibres
- Surrounds the entire muscle
- Forms the muscle tendon
- Separates muscle from skin
- Protects muscle tissue
- Groups muscles with similar functions together
An eccentric loading of a muscle followed by an immediate shortening is known as the…
Stretch-shortening cycle
The stretch-shortening cycle being used in training is known as…
Plyometrics
2 factors affecting muscular force generation
- The length-tension relationship
- Active insufficiency
