Give one limitation of limb kinematic analysis.

Limb kinematics usually needs a laboratory with specialist cameras and markers. The movement recorded may not match performance in real competition.

What is a force plate?

A force plate is a platform set into the ground that measures the ground reaction force during contact. Sensors record the size, direction and timing of the force.

What can a force plate tell a coach about a sprinter's start?

A force plate shows how much force the sprinter applies against the blocks and for how long. The coach can see whether the drive is powerful and well timed.

OCR A-Level Physical Education H555

Skeletal and Muscular Systems

Topic overview Shoulder, elbow and wrist joints and muscles Hip, knee and ankle joints and muscles Planes of movement, muscle roles and contractions Analysing movement in sporting actions Motor units and muscle fibre types

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Biomechanical Principles and Levers

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Biomechanical Principles and Levers

Limb kinematics, force plates and wind tunnels

3 things to know
Component 01

Overview

Limb kinematics and how the data is collected, its use and limitations, force plates for sprint starts, long jumpers and injury risk, and wind tunnels for track cyclists and ski jumpers.

What you need to know

Answer each one before you reveal it.

Your recallNot started

Key term

What is limb kinematics?

Key term

How is limb kinematic data collected?

Key term

How can limb kinematics improve a runner's technique?

Questions from this subtopic

Each one with the model answer underneath.

1
What is limb kinematics?
Model answer
Limb kinematics is the study of how the limbs move through space over time. Joint angles, limb velocities and movement patterns are recorded.
2
How is limb kinematic data collected?
Model answer
Reflective markers are placed on the joints and tracked by high-speed cameras. Software builds a three-dimensional model of the movement.
3
How can limb kinematics improve a runner's technique?
Model answer
A gait analysis shows the joint angles and stride pattern at each point of the running action. The coach can correct inefficient movement and reduce injury risk.
4
Give one limitation of limb kinematic analysis.
Model answer
Limb kinematics usually needs a laboratory with specialist cameras and markers. The movement recorded may not match performance in real competition.
5
What is a force plate?
Model answer
A force plate is a platform set into the ground that measures the ground reaction force during contact. Sensors record the size, direction and timing of the force.
6
What can a force plate tell a coach about a sprinter's start?
Model answer
A force plate shows how much force the sprinter applies against the blocks and for how long. The coach can see whether the drive is powerful and well timed.

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