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.
安装与使用
请根据来源仓库和你的 AI 工具说明安装此技能。先阅读技能文件和依赖要求，再添加到工作流。
查看来源 ↗使用指南技能说明
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)
Countermovement Depth (CMJ)
| Depth | Interpretation |
|---|---|
| < 20 cm | Shallow - may limit power generation |
| 20-40 cm | Optimal range |
| > 50 cm | Deep - may indicate technique issue |
Validation Response Format
When validating metrics, provide:
- Status: Normal / Warning / Error
- Value: The actual metric value
- Expected Range: Population-appropriate range
- Interpretation: Coaching-friendly explanation
- Recommendation: If outside norms, suggest next steps
Example Validation
RSI: 2.8
Status: Normal (Elite range)
Expected: 2.5-3.5 for elite athletes
Interpretation: Excellent reactive strength capability
Ground Contact Time: 85 ms
Status: Warning
Expected: 150-250 ms optimal
Interpretation: Unusually short - likely detection error
Recommendation: Review debug video for takeoff/landing detection accuracy
使用示例
查看来源仓库中的使用示例与配置说明。
查看来源 ↗来源历史
- 收录时间
- 2026-01-20
- 索引更新时间
- 2026-01-26
- Branch
- main
收录与同步日期属于本站记录。源码修改历史请查看来源仓库。
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