📖 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.
Soleus
Deep to gastrocnemius. Tonic plantarflexor active during standing and walking. Selectively activated during combined plantarflexion and knee extension (while gastrocnemius activity is depressed).
Draft95%
Anatomy
- Origin
- Posterior surface of fibular head, proximal tibia (soleal line)
- Insertion
- Calcaneus via Achilles tendon
- Action
- Ankle plantarflexion (especially during slow/postural activities); selectively activated with knee extension
- Innervation
- Tibial nerve (S1-S2)
- Blood Supply
- Posterior tibial artery, peroneal artery (dual supply)
Movements (3)
| Movement | Joint | Role | Notes |
|---|---|---|---|
| Ankle Plantarflexion | Talocrural Joint | Primary | — |
| Ankle Dorsiflexion | Talocrural Joint | Stabilizer | Eccentric control |
| Foot Inversion | Subtalar Joint | Synergist | Assists via calcaneal pull |
Exercises (48)
Sources
- Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation — Anatomy of Soleus — origin, insertion, action, innervation
- Muscles: Testing and Function with Posture and Pain — Manual muscle testing for Soleus