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Analysis of movement

Biomechanics is the analysis of human movements in sport. It explains how and why the body moves. There are a number of methods used to analyse movement. One used often by coaches and sports scientists is the analysis of movement phases. There are three movement phases:

  • preparation – the movements an athlete makes while preparing to perform the skill
  • execution – the movements made while performing the main part of the skill
  • recovery – the movements that allow an athlete to regain balance and/or position after performing the skill (sometimes in order to go into action with another performance)

As sports movements are complex, each phase is often divided into sub-phases. For example:

The sub-phases of a javelin throw, in its preparation, execution and recovery stages.

It is helpful to consider the musculo-skeletal system when carrying out movement analysis. The following aspects should be included:

  • joint (including type and bones)
  • type of movement
  • muscles involved
  • muscle function

Refer to the muscular system and skeletal system study guides for more information.

Watch a slow motion demonstration by Pat Cash to see the phases of movement in a tennis serve.