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Titre : | Reliability and Validity of Pupillary Response During Dual-Task Balance in Parkinson Disease (2021) |
Auteurs : | Melike Kahya ; Kelly E. Lyons ; Rajesh Pahwa ; Abiodun Emmanuel Akinwuntan ; Jianghua He ; Hannes Devos |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 102, n° 3, 2021) |
Article en page(s) : | p. 448-455 |
Note générale : | https://doi.org/10.1016/j.apmr.2020.08.008 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Équilibre postural ; Maladie de Parkinson ; Réadaptation ; Reproductibilité des résultats |
Résumé : |
Objective
To investigate the reliability and validity of pupillary response during dual-task balance conditions in individuals with Parkinson disease (PD). Design Cross-sectional study. Setting University of Kansas Medical Center Parkinson's Disease and Movement Disorder Center. Participants Participants (N=68) included individuals with PD (n=33) and healthy controls (n=35). Interventions Not applicable. Main Outcome Measures Pupillary response was the main outcome measure that was measured during the following conditions: single-task balance eyes open, single-task balance eyes occluded, dual-task eyes open, and dual-task eyes occluded. After each condition, the National Aeronautics and Space Administration-Task Load Index (NASA-TLX) was administered to assess self-reported cognitive workload. To examine the test-retest reliability of the pupillary response, the conditions were administered twice for each individual within 2 hours. Intraclass correlation coefficients (ICC) were used to analyze the test-retest reliability of pupillary response in each condition for both groups. Pearsons r correlation was used to assess the convergent validity of pupillary response against the NASA-TLX. Results The test-retest reliability was excellent for both groups in almost all conditions (ICC>0.75). There were no correlations between pupillary response and the NASA-TLX. However, increased mental demand (a subitem of the NASA-TLX) significantly correlated with increased pupillary response in individuals with PD (r=0.38; P=.03). Conclusions Pupillary response showed excellent test-retest reliability and validity during dual-task balance for individuals with PD and healthy controls. Overall, these results suggest that pupillary response represents a stable index of cognitive workload during dual-task balance in individuals with PD. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999320305645#! |