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OpenCap Weightlifting Analyzer (V2)

Upload OpenCap CSV(s) → map columns once → analyze + overlay reps for Snatch, Clean, and Jerk. 100% in-browser (HTML/CSS/JS).

1) Upload

OpenCap CSV file(s)

V2: Multi-file support + overlay comparison. For now, each file = one rep. (V2.1 will auto-segment multiple reps inside one long file.)

Rep A (file)

Rep B (optional overlay)

Overlay: Off

Lift

Time column (seconds OR normalized %)

If you only have frames, this will auto-use row index.

Knee flexion (Right)

Knee flexion (Left)

Hip flexion (Right)

Hip flexion (Left)

Ankle dorsiflexion (Right)

Ankle dorsiflexion (Left)

Shoulder flexion (Right) (optional)

Shoulder flexion (Left) (optional)

Elbow flexion (Right) (optional)

Elbow flexion (Left) (optional)

Use side

Smoothing (moving avg)

V2 flags are starter heuristics. Once Tim shares real OpenCap headers, we’ll auto-map perfectly and improve phase detection.

Status: Analyzed ✓ Detected phases: Dip + Power (20 → 50)

Triple Extension Speed (proxy)

0.5

Avg |d(hip+knee+ankle)/dt| during power phase

Catch Depth (proxy)

—

Max knee flexion near catch window

Left–Right Symmetry (knee)

1.8

Mean absolute difference across rep

Jerk Dip–Drive (if Jerk)

39.0 / 0.5

Dip depth + drive speed proxy

Technique Flags (starter)

Rep A markers are shown (Power start/peak/end; Catch or Dip).
Next upgrade (V2.1): normalize time + auto-segment multiple reps in one file.

V2: saves a row per rep (Rep A). Overlay rep is for visual comparison.

Rep	Lift	Power Phase	TES	Catch	Dip	Drive	Sym (knee)	Flags/Notes
Demo Jerk	jerk	20 → 50	0.5	—	39.0	0.5	1.8	TES low (slow power).