Ankle Joint: Sagittal-Plane Muscle Activity

0%

Opening

0% · Heel strike

Ankle angle (foot vs lower leg) (°)Current: -2.0°

Foot relative to lower leg

+ DORSIFLEXION− PLANTAR FLEXION
Ankle angle (foot vs lower leg)-20°0°10°↑ DORSIFLEXION↓ PLANTAR FLEXION0%20%40%60%80%100%
Gait cycle: 0%
Graph explanations and references

Schematic torque and EMG shapes traced from Fig. 15.42, course textbook, ch. 15 (full citation pending); no values shown. MTU ECC/CON shading is the conventional muscle–tendon-unit interpretation, not measured fascicle behaviour. EMG shows activation, not force or contraction type. Power is described, not plotted.

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Chapters
Learning objectives

Relate tibialis anterior and soleus activity to ankle motion and internal ankle torque across the gait cycle.