biomechanics-validation
Validates jump metrics against physiological norms. Use when analyzing CMJ or drop jump results, discussing RSI values, jump heights, ground contact times, or when metrics seem unusual.
npx skills add majiayu000/claude-skill-registry --skill biomechanics-validation-feniix-kinemotion-2 --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Biomechanics Validation When reviewing jump metrics, validate against these norms: ## RSI (Reactive Strength Index) | Population | RSI Range | | ------------ | --------- | | Recreational | 0.5-1.5 | | Trained | 1.5-2.5 | | Elite | 2.5-3.5 | **Flag values > 3.5** as potentially erroneous (measurement or technique issue). ## CMJ Jump Height | Population | Male (cm) | Female (cm) | | ------------ | --------- | ----------- | | Recreational | 25-40 | 20-35 | | Trained | 40-55 | 35-45 | | Elite | 55-70+ | 45-55+ | ## Ground Contact Time (Drop Jump) | Range | Interpretation | | ---------- | ------------------------------------------ | | < 100 ms | Likely sensor/detection error | | 150-250 ms | Optimal reactive strength | | 250-350 ms | Acceptable, technique improvement possible | | > 400 ms | Technique issue or fatigue | ## Flight Time | Jump Type | Typical Range | Flag If | | --------- | ------------- | -------- | | CMJ | 400-600 ms | > 800 ms | | Drop Jump | 350-550 ms | > 700 ms | ## Triple Extension (CMJ) All three joints should approach full extension at takeoff: - Hip: > 160° (optimal: 170-180°) - Knee: > 160° (optimal: 170-180°) - Ankle: > 130° (plantar flexion) ## Countermovemen
- RSI (Reactive Strength Index)
- CMJ Jump Height
- Ground Contact Time (Drop Jump)
- Flight Time
- Triple Extension (CMJ)
- Countermovement Depth (CMJ)
- Validation Response Format
- Example Validation
What does the biomechanics-validation skill do?
Validates jump metrics against physiological norms. Use when analyzing CMJ or drop jump results, discussing RSI values, jump heights, ground contact times, or when metrics seem unusual.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill biomechanics-validation-feniix-kinemotion-2 --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.