Rigidity can stop muscles from stretching and relaxing. It can cause:
- stiff muscles
- inflexible muscles
- pain and muscle cramps
- a fixed, 'mask-like' facial expression
Someone with rigidity may not be able to swing their arms when they walk because their muscles are too tight and stiff.
Some people with Parkinson's have problems turning around, getting out of chairs and turning over in bed.
Rigidity can also make it hard to do things like writing or doing up buttons.
Last updated April 2017. We review all our information within 3 years. If you'd like to find out more about how we put our information together, including references and the sources of evidence we use, please contact us at [email protected].