📖 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.
- 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.
Finger Flexion (MCP)
Metacarpophalangeal Joints • Hand • sagittal plane
Draft80%
Bending the fingers at the metacarpophalangeal joints.
Axis: medial-lateral
Normal Range of Motion
AROM
0–90°
Active range
PROM
0–90°
Passive range
AAOS lists 0-90 for MCP flexion. Flexion increases slightly from index to small finger (small finger may reach ~95-100).
Source: AAOS Joint Motion; Norkin & White 2016
Muscles (3)
| Muscle | Role | Notes |
|---|---|---|
| Flexor Digitorum Superficialis | Primary | — |
| Flexor Digiti Minimi Brevis | Primary | Flexes 5th finger at MCP joint |
| Lumbricals (Hand) | Synergist | MCP flexion with IP extension |
Functional Tasks (6)
Gripping a Cupessential
Opening a Jaressential
Typingessential
Carrying and Lifting Objectsessential
Dressing — Upper Bodyessential
Dressing — Lower Bodysupportive
Exercises (13)
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Biomechanics of Finger Flexion (MCP)