Extensor pollicis longus & brevis

Schematic anatomy
Deep layerExtensor pollicis longus & brevis

Arms

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Biceps

Long headShort headBrachialis · supporting muscle

Triceps

Long headLateral headMedial head

Forearms

BrachioradialisFlexor carpi radialisFlexor carpi ulnarisFlexor digitorum superficialisFlexor digitorum profundusFlexor pollicis longusExtensor carpi radialis longus & brevisExtensor carpi ulnarisExtensor digitorumExtensor pollicis longus & brevisAbductor pollicis longusPronator teresPronator quadratusSupinator

Hands

Abductor pollicis brevisFlexor pollicis brevisOpponens pollicisAdductor pollicisHypothenar musclesLumbricalsDorsal interosseiPalmar interossei
Movement guide

Extensor pollicis longus & brevis

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Straighten the thumb at its joints.

01

Resisted thumb extension

Thumb extension · Light band

Also works

Abductor pollicis longus; wrist extensors stabilize

How to perform

Place a light band around your thumb and hand. Straighten and lift your thumb away from the palm, then return.

Use light tension and keep the wrist still.

Example volume · 1–2 sets × 8–12 reps

Referenceswww.guysandstthomas.nhs.uk

Community draft · awaiting expert review