大象传媒

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 鈥 the movements an athlete makes while preparing to perform the skill
  • execution 鈥 the movements made while performing the main part of the skill
  • recovery 鈥 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.

Types of analysis

During each of the movement phases, analysis may focus on:

  • body position
  • head position
  • arm/hand position and movements
  • leg/foot position and movements
  • timing
  • power
  • effect on the results

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