9-22-09 - tibialis Ankle Plantar flexion Gastrocnemius...

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Knee Flexion
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Hamstrings Biceps femoris Semitendinosus Semimembranosus
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Knee Extension
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Quadriceps femoris Rectus femoris (also hip; 2 joint) Vastus medialis Vastus lateralis Vastus intermedius
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Knee External Rotation
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Biceps femoris
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Knee Internal Rotation
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Semitendinosus Semimembranosus Popliteus
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Stronger vs. Weaker
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Knee extensors are stronger (2:1 ratio) Knee flexors are weaker
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Ankle Dorsiflexion
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Tibialis anterior; also called Anterior
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Unformatted text preview: tibialis Ankle Plantar flexion Gastrocnemius Soleus group • Soleus • Plantaris • Gastrocnemius Foot Inversion • Tibialis anterior • Tibialis posterior Foot Eversion • Fibularis longus • Fibularis brevis Stronger vs. Weaker • Plantar flexors are stronger – dorsiflexors are weaker • Invertors are stronger – evertors are weaker...
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9-22-09 - tibialis Ankle Plantar flexion Gastrocnemius...

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