What a camera can see in a hang power clean
A hang power clean starts with the bar held at the hip or knee rather than on the floor, so the whole movement is a hip extension and a catch. The rubric weights hip extension most heavily for exactly that reason. From the side, the camera measures the largest hip angle reached at the top of the pull, the knee angle at the catch, and the elbow angle once the bar is racked. The identity gate reads the torso in the first frame: a trunk pitched well over means the bar started on the floor and the lift is a power clean.
How ScoreRep scores a hang power clean
The rubric declares 4 scored criteria. The strongest single camera angle is the left side view. Every criterion below is available from that angle.
The score is the points earned divided by the points the recorded angle could support, so a clip filmed from a limited angle is never quietly marked down for what the camera could not see. At least 60% of the applicable weight has to be measured before a result is ranked at all.
| Criterion | Points | Measured from the athlete’s pose | Full marks when |
|---|---|---|---|
| Hip extension | 30 | largest hip angle in the rep | 172° or more |
| Power catch | 25 | knee angle at the bottom of the rep | 140° or less |
| Front rack elbows | 15 | elbow angle at the catch or bottom position | 95° or less |
| Explosiveness | 20 | time taken by the lifting phase | 0.7s or less |
Criteria that depend on the camera angle
These criteria are excluded, not estimated, when the recorded angle cannot support them. That is why the same set filmed twice from different positions can produce two valid scores out of two different totals.
- Hip extension — needs a left side, right side, left oblique and right oblique view.
- Power catch — needs a left side, right side, left oblique and right oblique view.
- Front rack elbows — needs a left side, right side, left oblique and right oblique view.
Does this hang power clean rep count?
ScoreRep answers that in two separate steps. First, the clip has to read as a hang power clean at all: every check in the table below has to pass, and a reading the camera could not take counts as a fail, never as a pass. A clip that fails is returned unranked with the reason attached, rather than scored low against the wrong rubric, and no template can override a failed check.
Second, the scoring criteria award points. Falling short of a full-marks threshold costs points, not the rep. Every number here is read from version 2 of the hang power clean rubric, the same file the scoring engine runs.
- Compare the hang power clean standard with the other 29 movements on the movement standards page.
- How the rep counter decides between a valid rep and a no-rep, station by station.
| Reading | Has to be | Otherwise rejected because |
|---|---|---|
| Vertical travel of the hips across the rep | 0.05 or more | the hip pull is not strong enough |
| Largest hip angle in the rep | 155° or more | the hips do not extend, so the pull is incomplete |
| Whether the hands finish above the shoulders | no | the movement finishes overhead, so it is not a hang power clean |
| Elbow angle in the finish position | 100° or less | there is no front rack position at the finish, so this does not read as a clean |
| Smallest knee angle in the rep | 100° or more | the bar is received in a full squat, which reads as a squat clean rather than a hang power clean |
| Torso lean in the starting position | 20° or less | the torso is too far over at the start, which reads as a power clean from the floor rather than a hang clean |
What the recording has to contain
Eligibility decides whether a result can enter a leaderboard. Failing it does not block the feedback — the clip is still scored and returned, but marked unranked with the reason attached, so a bad camera position never silently becomes a bad score.
- A pose has to be detected in at least 55% of the frames.
- The camera angle has to be one of: left side, right side, left oblique and right oblique.
- At least 1 complete repetition has to be detected.
What is deliberately not scored
Identity, repetition counting, eligibility and the score are derived only from the athlete’s pose. Measurements that come from tracking an external object — the path of a barbell, for example — are drawn on the review overlay but are deliberately outside the scoring contract, so they never affect the number.
For this movement that applies to Bar path. It is listed in the rubric so the exclusion is visible rather than silent, and it earns no points.
Reading the result
Because there is no floor phase to build speed, a hang power clean exposes hip extension more clearly than the version from the ground. If the hip extension score is well below the catch score, the athlete is pulling with the arms and dropping under the bar rather than finishing the pull. Filming from a fixed side position across a block makes that trend readable; a single session will not.
A technique score is educational feedback about visible movement. It cannot tell you whether a load is safe for your joints, whether pain means something, or whether a programme suits you. Those judgements need a coach or clinician who knows your history.