What characterizes spastic paralysis?

Spastic paralysis is characterized by muscles undergoing continual contraction, which is a result of an imbalance in the signals sent from the brain to the muscles. In this condition, there is often damage to the pathways in the central nervous system that control movement, leading to increased muscle tone. This hyperactivity causes muscles to be stiff and resistant to being stretched, resulting in heightened reflexes and unusual postures.

The continual contractions in spastic paralysis can lead to difficulty in voluntary movements and coordination. This contrasts with other forms of paralysis where muscle weakness or complete inability to contract is observed. Understanding the mechanisms at play in spastic paralysis provides insight into how the central nervous system regulates muscle tone and movement, and why certain rehabilitation strategies may be needed to manage the effects of this condition.