L12 - Technique Analysis

• What is Technique Analysis?

  • Assessment of movement process with respect to performance outcome
  • Often observational, but quantitative methods becoming more common
  • Requires skill specific expertise
  • What’s important?
• Data Collection:

  • Electromagnetic sensor system
  • 5 sensors: L4, T3, lateral humerus, back of hand, centre of forehand
  • Anatomical landmarks identified using wand
  • Real time tracking
• Data Reduction:

  • 3 events in the swing

  1. Address (TA)
  2. Top of Backswing (TB)
  3. Impact (BC)

  • Segment linear & angular positions extracted at each event & displacements bw/ events
• Address Position - Angular Position:

  • Absolute reference frame (+ve x right, +ve y anterior, +ve z up)
  • Segment angles