Quantification of motor slowness in Parkinson’s disease: Correlations between the tapping test and single joint ballistic movement parameters
Parkinsonism & Related Disorders. 1997-01-01; 3(1): 47-50
DOI: 10.1016/S1353-8020(96)00039-9
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1. Parkinsonism Relat Disord. 1997 Jan;3(1):47-50. doi:
10.1016/s1353-8020(96)00039-9.
Quantification of motor slowness in Parkinson’s disease: Correlations between
the tapping test and single joint ballistic movement parameters.
Boraud T(1), Tison F, Gross C.
Author information:
(1)Groupe Motricité, Laboratoire de Neurophysiologie, CNRS UMR 5543, Université
de Bordeaux II, Bordeaux, France.
The tapping test is used routinely for the quantification of drug effects on
motor slowness in Parkinson’s disease (FD). This test has not been validated
previously using reference methods measuring kinematic parameters of movement.
We compared and correlated modifications of the tapping score induced by
levodopa with that of kinematic parameters of a single joint ballistic movement
in 10 PD patients. Results demonstrate that the modification of the tapping
score correlates with the bradykinetic, but not the akinetic, component of motor
slowness in PD. Also analyzed are the sensitivity and specificity of different
thresholds of the increment of the tapping score for the detection of
modifications in amplitude, velocity and acceleration. Using a tapping score
threshold of positivity between 10 and 20% of increase, the sensitivity and
specificity to detect significant modifications in velocity is 100%.
DOI: 10.1016/s1353-8020(96)00039-9
PMID: 18591054