Flapp
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Aero position, from a single photo

A TT position judged against the aero fit window rather than the road one -- a flat back is the goal here, not a fault.

Annotated keyframe — Aero position, from a single photo
100/100Excellent

Measured against published ranges

Every target names where it comes from. A value a degree or two outside a band is inside the method’s own error, not a finding.

MeasurementYoursReferenceSource
Knee Angle142.6°126–153°
Hip Angle93.5°85–110°
Elbow Angle90.1°75–110°
Shoulder Angle85.7°80–100°
Trunk Angle25.4°15–30°
Forearm Tilt19.7°5–25°
Head Tuck100°75–100°
Pelvic Rotation3.7°2–4°

Findings

Nothing outside its range on this clip.

Measured but not scored, because the frame cannot answer it: Ankle Angle — 123.3°. Depends on the pedal position — not scored from a single photo.

Measured from a single side-on camera with 2D pose estimation. Only the near side of the body is measured; the far side is absent rather than assumed symmetrical. Reference ranges are efficiency targets from the literature, not diagnoses.

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Side-on, phone upright, you filling the frame. Free account, no card.

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