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Technical Details

  • Variable Type: Discrete Metric
  • Data Type: Boolean (binary)
  • Units: 1 = parallel, 0 = not parallel
  • Column Name: trunk_tibia_parallel
  • Measurement: Assessment of whether trunk and tibia segment sagittal plane angles are parallel (within 20 deg of each other) at the bottom of the squat

Description

Trunk tibia parallel is a binary flag indicating whether the trunk and tibia are near parallel (20 degree threshold) at the bottom position. It is used in bodyweight, overhead, and single-leg squats as a simple posture and technique indicator. Its counterpart is Trunk Tibia Angle.

Use Cases

  • Posture and technique at bottom
  • Movement quality screening
  • Coaching feedback