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Injury Prevention and Rehabilitation

Warm-up and cool-down physiology

  • 3 things to know
  • Components 1 and 2

Overview

The phases of a warm-up, muscle temperature, blood flow, oxygen release and the joints, injury and psychological benefits, the sprinter's warm-up, dynamic stretching, and the cool-down with blood pooling, myoglobin and static stretching.

What you need to know

Answer each one before you reveal it.

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Key term

What are the phases of a warm-up, and how does a higher muscle temperature help?

Key term

How does a warm-up help oxygen reach the muscles and prepare the joints?

Key term

How does a warm-up reduce the risk of injury and prepare a performer mentally?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What are the three phases of a warm-up?

    Model answer

    A warm-up starts with a pulse raiser of light aerobic activity. Mobility work and stretching follow, and sport-specific skill drills complete it.

  2. 2

    How does raising muscle temperature help a performer in a warm-up?

    Model answer

    Warm muscle fibres are more elastic and can stretch further before they tear. Faster nerve impulses also let the warm muscle contract more quickly.

  3. 3

    Why should there be only a short gap between the end of a warm-up and the start of competition?

    Model answer

    The benefits of a warm-up, such as raised muscle temperature, fade soon after activity stops. A long delay means the performer starts cold and at greater risk of injury.

  4. 4

    How does a warm-up change blood flow to the muscles?

    Model answer

    The arterioles supplying the working muscles dilate. More blood, and so more oxygen, reaches the muscles.

  5. 5

    Why does warm muscle receive oxygen more readily?

    Model answer

    Haemoglobin releases oxygen more easily at a higher temperature. More oxygen is unloaded to the working muscles as a result.

  6. 6

    How does a warm-up benefit the joints?

    Model answer

    Movement stimulates the release of synovial fluid, which becomes less viscous as it warms. Joints are better lubricated and range of movement increases.

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