Table 3: Nonparametric correlations in PD subjects between total and neural components of passive movement resistance in hand/finger muscles and clinical ratings of rigidity.

Total (N)NC (N)
PassiveDynamicPassiveDynamic
LeastMostLeastMostLeastMostLeastMost

UPDRS part III
Rigidity
Bradykinesia

UPDRS = unified Parkinson’s disease rating scale, part III motor section, total score. Rigidity and bradykinesia scores of corresponding least and most affected arms. Correlation coefficients shown (Spearman’s Rank Order Correlation). Significant correlations marked in bold, (Bonferroni correction).