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Technical Details

  • Variable Type: Event
  • Data Type: Integer
  • Units: Frame number
  • Column Name: initiation_frame
  • Required for QA: False
  • Measurement: First detectable movement of lead foot
  • Timing: Before max knee raise event

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Description

The initiation event represents the very beginning of the swing sequence when the batter starts to move their lead foot. Identified by the leading 5th percentile height of the max foot raise peak.

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Use Cases

  • Swing timing analysis
  • Event timing comparisons - time to launch, time to contact