Discover how Golgi tendon organs protect your muscles and regulate force! Learn their crucial role in your body's coordination and plasticity.
Published on October 30, 2025
Golgi tendon organs (GTO), located at the muscle-tendon junction, measure active tension. They protect the musculoskeletal system and regulate force.
From 2 N, Ib discharge frequency increases linearly. Captures fine variations without saturation.
Ib → inhibitory interneuron → inhibits α motor neuron. Protective loop (~50 ms) against overload.
Higher centers reduce Ib inhibition → maintain high force (weightlifting). Sometimes excite Ib.
Ib interneurons redistribute load: inhibit overly active agonists, facilitate antagonists → joint stabilization.
GTOs act as torque sensors: protect tendons, regulate force, and adapt to power/precision needs.
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