Page 522 - Total War on PTSD

movement facilitates spiraling in the joints, which allows for maximum fluid motion, so that the body flows like water.
The practical application of this information is that slow rhythmic movement (1 Hz or one beat per second) may entrain, control, or balance a vast neuronal network. Thus, the slow motion movements of Tai Chi forms may result in this kind of neural control. The comfort imparted by rocking and walking my daughter’s new baby, or the incessant kneading and purring of my cat, or the well-known benefits of therapeutic riding for developmental disorders, suggests the power of rhythmic movement. It also suggests that imbalanced activity results in imbalanced mental/emotional states, tremors and epileptic seizures, and could be a result of the loss of the superimposed slower rhythms.
The graphs below show altered brain rhythms after performing a 1 Hz backwards bicycling movement.

EEG — Quiet standing
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