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Technical Details

  • Variable Type: Discrete Metric
  • Data Type: Float
  • Units: raw: m, display: in
  • Column Name: rear_arm_connection
  • Aggregation: mean
  • Precision: 1
  • Measurement: Average distance from rear elbow to mid-torso
  • Timing: Launch to ball contact events
  • Typical Range: 8.9 – 15.7 in
  • Optimal Direction: Middle — moderate values are optimal

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Description

Rear arm connection measures the average distance between the rear elbow and the mid-torso during the swing. This metric indicates the relative connection and efficiency of the rear arm position to the torso during the acceleration phase. Maintaining a tight connection between rear arm and torso improves power transfer.

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Normative Ranges

Percentile distributions by competition level from the 2026 Q1 dataset; the optimal range spans the 25th–75th percentiles.

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Use Cases

  • Arm connection analysis
  • Swing efficiency assessment
  • Power transfer evaluation