Impaired finger dexterity in patients with parkinson's disease correlates with discriminative cutaneous sensory dysfunction
Identifieur interne : 000683 ( Main/Exploration ); précédent : 000682; suivant : 000684Impaired finger dexterity in patients with parkinson's disease correlates with discriminative cutaneous sensory dysfunction
Auteurs : Myung Sik Lee [Corée du Sud] ; Chul Hyoung Lyoo [Corée du Sud] ; Myung Jun Lee [Corée du Sud] ; Jaeeun Sim [Corée du Sud] ; Hanna Cho [Corée du Sud] ; Yun Ho Choi [Corée du Sud]Source :
- Movement Disorders [ 0885-3185 ] ; 2010-11-15.
English descriptors
Abstract
To study the influence of discriminative cutaneous sensory dysfunction on impaired finger dexterity in Parkinson's disease (PD), we evaluated 48 right‐handed PD patients during a practically defined off‐medication period and 24 healthy age‐matched controls. With visual deprivation, a finger tapping task (FTT) was performed to assess the speed of simple repetitive finger movements and a coin rotation task (CRT) was used to assess finger dexterity. The tasks were performed with the right hand. We measured the somesthetic temporal discrimination threshold (sTDT) in the right index finger. The mean ± SD FTT score of the patient group was lower than that of the control group (24.0 ± 8.0 vs. 29.8 ± 7.8; P < 0.01). The patient group performed worse on the CRT than the control group (8.5 ± 3.5 vs. 12.6 ± 1.7; P < 0.001). The mean sTDT value of the patient group was longer than that of the control group (124.0 ± 44.8 vs. 78.1 ± 26.2 ms; P < 0.001). The CRT scores correlated with the sTDT values (Pearson's correlation coefficient = −0.43; P < 0.01), but not with the Unified Parkinson's Disease Rating Scale (UPDRS) finger bradykinesia scores or FTT scores. Multiple regression analysis showed that the sTDT values (parameter estimate = −0.03, SE = 0.01; P < 0.01), but not patient age, UPDRS finger bradykinesia score, or FTT score, affected the CRT score. Slowness of simple repetitive finger movements did not have a strong impact on the impaired manual dexterity of PD. Discriminative sensory dysfunction and consequent abnormal sensorimotor integration seem to be involved in the impaired finger dexterity of PD. © 2010 Movement Disorder Society.
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DOI: 10.1002/mds.23304
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With visual deprivation, a finger tapping task (FTT) was performed to assess the speed of simple repetitive finger movements and a coin rotation task (CRT) was used to assess finger dexterity. The tasks were performed with the right hand. We measured the somesthetic temporal discrimination threshold (sTDT) in the right index finger. The mean ± SD FTT score of the patient group was lower than that of the control group (24.0 ± 8.0 vs. 29.8 ± 7.8; P < 0.01). The patient group performed worse on the CRT than the control group (8.5 ± 3.5 vs. 12.6 ± 1.7; P < 0.001). The mean sTDT value of the patient group was longer than that of the control group (124.0 ± 44.8 vs. 78.1 ± 26.2 ms; P < 0.001). The CRT scores correlated with the sTDT values (Pearson's correlation coefficient = −0.43; P < 0.01), but not with the Unified Parkinson's Disease Rating Scale (UPDRS) finger bradykinesia scores or FTT scores. Multiple regression analysis showed that the sTDT values (parameter estimate = −0.03, SE = 0.01; P < 0.01), but not patient age, UPDRS finger bradykinesia score, or FTT score, affected the CRT score. Slowness of simple repetitive finger movements did not have a strong impact on the impaired manual dexterity of PD. Discriminative sensory dysfunction and consequent abnormal sensorimotor integration seem to be involved in the impaired finger dexterity of PD. © 2010 Movement Disorder Society.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><noRegion><name sortKey="Lee, Myung Sik" sort="Lee, Myung Sik" uniqKey="Lee M" first="Myung Sik" last="Lee">Myung Sik Lee</name></noRegion><name sortKey="Cho, Hanna" sort="Cho, Hanna" uniqKey="Cho H" first="Hanna" last="Cho">Hanna Cho</name><name sortKey="Choi, Yun Ho" sort="Choi, Yun Ho" uniqKey="Choi Y" first="Yun Ho" last="Choi">Yun Ho Choi</name><name sortKey="Lee, Myung Jun" sort="Lee, Myung Jun" uniqKey="Lee M" first="Myung Jun" last="Lee">Myung Jun Lee</name><name sortKey="Lyoo, Chul Hyoung" sort="Lyoo, Chul Hyoung" uniqKey="Lyoo C" first="Chul Hyoung" last="Lyoo">Chul Hyoung Lyoo</name><name sortKey="Sim, Jaeeun" sort="Sim, Jaeeun" uniqKey="Sim J" first="Jaeeun" last="Sim">Jaeeun Sim</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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