📖 Static demo — read-only snapshot
You’re browsing a static build of the Body IQ knowledge graph, so everything loads with no backend. A few things that need the live server are turned off here:
- Global search (sidebar) is disabled — it queries the API.
- The JSON API and the API “Try it” playgroundaren’t included.
- FHIR resources are build-time snapshots served as static files, not the live /api/exercises/<slug>/fhir route.
- The data is a snapshot — it refreshes only when the demo is rebuilt, not live from the database.
Everything else — the body map, progression ladders, coverage heatmap, exercise finder, and all anatomy/exercise/source pages — works fully. The full app (live search + API + database) runs from the source on GitHub.
Negative Pull-Up
Why Include This
Eccentric capacity exceeds concentric capacity, so a negative can be loaded at full bodyweight before a full pull-up is possible. The controlled lower is also where scapular control tends to break down first.
Evidence basis: expert-opinion
Positions & Range of Motion
- Start
- top of the pull-up, chin over the bar, reached by stepping or jumping up
- End
- full hang, arms straight, shoulders under control rather than dropped
- Range of Motion
- chin-over-bar to full hang, eccentric only
How to Perform
Eccentric-only pull-up: the athlete steps or jumps to the top position with the chin over the bar, then lowers under control to a full hang over three to five seconds.
Opens a YouTube search for “Negative Pull-Up”
Coaching Cues
- 1
Count five seconds on the way down — the last inch is the one that matters
(verbal) - 2
Arrive at the bottom, don't fall into it
(verbal)
Evidence-Based Dosing & EMG Data
3–5 sets × 3–5 lowers of 3–5 s, 2×/week (consensus programming, not RCT-derived)
Muscles Involved (7)
Primary Movers
Secondary Movers
Stabilizers
Easier Variations ↓
Band-Assisted Pull-Up
Regress to Band-Assisted Pull-Up.
Harder Variations ↑
Chin-Up
Progress to Chin-Up.
Target Movements (4)
Goals This Helps With
Rehab, performance, prevention, and mobility goals this exercise supports — essential means it's a cornerstone:
Research Notes
claude-researched 2026-08 (bodyweight ladders). Rung ordering is community consensus, not trial evidence — see source bodyweight-progression-consensus-2026. EMG and RCT sourcing pending.
Evidence Sources (1)
- 📄Community-consensus bodyweight progression sequences— r/bodyweightfitness Recommended Routine contributors; allied coaching material
Consensus progression sequence — supports the rung's position in the ladder, not its anatomy.