The coin rotation test: a reliable and valid test in people with Parkinson's disease.

The CRT is a reliable, and clinically available tool for assessing manual dexterity in PwPD.Implications for rehabilitationThe coin rotation test is a reliable, valid, and clinically available tool for assessing manual dexterity in Parkinson's Disease.The minimal detectable changes of the coin rotation test are 5.96 s for dominant hand and 8.23 s for the non-dominant hand, which may useful for clinicians and researchers to detect in any true change in manual dexterity after any intervention.The coin rotation test correlated with Parkinson's Disease-specific measurement tools.The coin rotation test times may detect impaired manual dexterity between people with Parkinson's Disease and healthy people, and between functionally dependent and functionally independent in Parkinson's Disease population.