Increased tonic muscle tone

The resistance of patients with passive exercise is generally less than that of spastic, but it has nothing to do with the length of the muscle, that is, the contracted shape, and there is no difference between the extensor and flexor muscles. No matter what the speed, amplitude and direction of the action, they will all encounter the same resistance. This increase in muscle tone is called lead-like rigidity. If there is an alternating loose and tight change caused by tremor, it is called gear-like rigidity.