Stabilizing the nonmoving parts reduces the variables the brain has to deal with in predicting the consequences of muscle contractions.

Even the simplest movement requires teamwork — lifting a finger implies cooperative activity between a prime mover (it contracts to create the movement), a stabilizer (it contracts to prevent unwanted movement), and the antagonist muscle (it relaxes to allow the movement). No matter how fit or capable the individual muscles are, if they are not coo

it may be that practicing control of movement could help with control of emotion.

Moshe Feldenkrais claimed there is no such thing as an isolated emotion, thought, movement or sensation. Each mental output will always involve elements of the other three, so every thought has an associated movement, sensation and emotion; every emotion has a related movement, sensation, and thought, and so on.

Although the weight is a form of resistance to the muscles, it is a form of assistance to the nervous system in finding the best movement pattern.

Some common directions into which people tend to lose neutral joint position during movement are upper cervical extension, thoracic flexion, scapular elevation and internal rotation, thoracolumbar extension, hip flexion, and foot pronation.

the purpose of pain is not to measure tissue damage, but to encourage protective behaviors. The need for protection depends on more than just the state of the tissues. Second, pain protects against “perceived” threat, not actual threat, and the brain’s perceptions in this regard can simply be incorrect.

in the presence of back pain, the rectus abdominis and erectors increase co-contraction to create more stiffness. This braces the back and protects the painful area, but it comes with a price. Compression is increased, variation in movement is reduced, and there is less ability to make precise intersegmental movements. Thus, co-contraction of the g

although external cues should probably be preferred in most instances, internal cues might be useful for getting out of bad movement habits or for building new ones.