📖 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.

Forearm Pronation

Proximal Radioulnar Joint • Elbow • transverse plane

Draft80%

Rotation of the forearm so the palm faces posteriorly (or downward).

Axis: longitudinal

Normal Range of Motion

AROM
0–80°
Active range
PROM
0–80°
Passive range

Measured from the thumb-up neutral position with the elbow flexed 90 degrees. AAOS and Norkin & White list 80; AMA Guides and some sources list 90-degree norms.

Source: AAOS Joint Motion; Norkin & White 2016

Muscles (4)

MuscleRoleNotes
Pronator QuadratusPrimaryPrimary pronator
Pronator TeresPrimary—
Flexor Carpi RadialisSecondarySignificant activation during pronation [Bader 2018]
BrachialisStabilizerStabilizes elbow during pronation

Functional Tasks (1)

Opening a Jaressential

Exercises (5)

Forearm Pronation/Supination with Hammer
Radial Nerve Glide
6-Direction Wrist Resistance Training
Resisted Forearm Pronation
Desk Wrist Extensor Stretch

Sources