What is the function of the muscular system, what does it maintain, how is it arranged and what are the 3 types of muscle?
- The muscular system's function is to move using all muscles.
- It maintains posture and shape.
- It's arranged agnostically (in pairs)
- The three types of muscles are voluntary, involuntary and cardiac.
What are the immediate effects of exercise?
- Increased demand for glycogen and oxygen
- Extra blood is neede to take away waste products created by high intensity exercise.
- Lactid acid builds up is not enough oxygen is supplied to the muscles.
- Muscles can ache and cause cramp.
- Exercise helps the body cope with these demands.
What are the long term effects of exercise?
- Increased hypertrophy
- Increased muscular endurance
- Increased muscular stregnth
- Stronger tendons
- Stonger ligaments
What is the difference between isotonic and isometric and give examples of sports they are used in.
Isotonic is muscle contraction with movement.
e.g. football and tennis.
Isometric is muscle contraction without movement.
e.g. rugby scrum and the plank.
Explain each part of the warm up and why the cool down is just as important.
The warm up
- Pulse raiser - increase blood pressure and warms up the body.
- Stretching - essential so you don't pull a muscle.
- Skill related to the activity - develop in a weak/important area of your sport.
The cool down
- equally important for preventing injury
- disperses lactid acid to avoid muscle soreness/stiffness.
- lowers blood pressure.
What are the 3 types of muscle injuries, define the sprain and how are they healed? Explain RICE.
- Strain - in the joint where it has been moved beyond it's normal range of movement.
They human body is able to rebuild + repair these fibres during rest.
- Rest - stop immediatly so no more damage is done.
- Ice- apply ice to the injury to reduce swelling.
- Compression - wrap a bandage around the injury to reduce swelling.
- Elevation - lift the injury so the blood flow slows down reducing swelling.