OCR A-Level PE exercise physiology overview quiz quiz

The main fuel for high-intensity exercise

Temperature regulation

The main store for the ATP-PC system

Growth and repair of tissue

To maximise muscle and liver glycogen and delay fatigue

To strip body fat and lower competition weight in the taper

To increase the muscle store of phosphocreatine for the ATP-PC system

To buffer hydrogen ions and so raise the OBLA threshold

Creatine monohydrate supplementation

Sodium bicarbonate

Caffeine

Dietary nitrate

Interval

Individuality

Intensity

Improvement

A permanently higher resting heart rate at rest and during recovery

A smaller plasma volume and reduced total blood volume

A loss of capillaries around the trained muscle fibres

Cardiac hypertrophy and a lower resting heart rate

Plyometrics

Continuous training

Static stretching

Fartlek

The slow (lactacid) component that removes lactate

The fast (alactacid) component

The Cori cycle in the liver

The phenomenon of cardiovascular drift

It is filtered out by the kidneys and excreted in the urine

It is stored permanently in the muscle as a waste product

It is oxidised back to pyruvate and reused as a fuel

It is converted entirely to triglyceride and stored as fat

The percentage of oxygen in the air decreases

Humidity increases

The body produces less EPO

The total air pressure is lower

To gain blood adaptations while keeping training intensity high

To reduce the financial cost of running expensive altitude training camps

To deliberately avoid any heat acclimatisation before competition

To increase the muscle store of phosphocreatine for sprinting

It increases the air resistance the performer must work against

It prevents sweat from evaporating, so the main cooling route fails

It lowers the partial pressure of oxygen in the inspired air

It raises the OBLA threshold and so delays the onset of muscular fatigue

A hard or uneven playing surface underfoot

Faulty or poorly maintained equipment

Poor technique or muscle imbalance

Cold weather on the day of competition

Cool-down

Contraction

Continue

Compression

It restores joint position sense and helps prevent re-injury

It builds aerobic fitness and raises the athlete's VO2 max

It speeds the removal of lactate from the injured muscle

It increases the glycogen stores held in the muscle and liver