SkillsAdd

kinemotioninc/kinemotion · Archived

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.

First seen Feb 10, 2026

Installation

$ npx skills add kinemotioninc/kinemotion --skill biomechanics-validation
View on skills.sh ↗ GitHub repository ↗

Stronger alternatives

This repository is archived — consider an actively maintained alternative.

mediapipe-pose-detection Same source · more installs
kinemotioninc/kinemotion

MediaPipe pose detection expertise. Use when debugging landmark tracking, adjusting confidence …

87 installs
video-analysis-workflow Same source · more installs
kinemotioninc/kinemotion

Guides video analysis for CMJ and drop jump. Use when processing athlete videos, debugging pose…

46 installs
kinemotion-development Same source
kinemotioninc/kinemotion

Apply kinemotion development standards. Use when writing Python code, creating tests, modifying…

5 installs

Also in this package

Other skills from kinemotioninc/kinemotion.

npx skills add kinemotioninc/kinemotion
mediapipe-pose-detection 87 video-analysis-workflow 46 kinemotion-development 5

Browse all from kinemotioninc/kinemotion

More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Also listed on

Alternate registries and mirrors of this skill.

Repository health

Stars 1
License LICENSE
Default branch main
Open issues 9
Status Archived

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 2,574 B
  • docs SUMMARY.md 216 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 12 installs

SKILL.md

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:

  1. Status: Normal / Warning / Error
  2. Value: The actual metric value
  3. Expected Range: Population-appropriate range
  4. Interpretation: Coaching-friendly explanation
  5. 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