期刊
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
卷 102, 期 3, 页码 448-455出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.apmr.2020.08.008
关键词
Parkinson disease; Rehabilitation; Reproducibility of results
资金
- Eunice Kennedy Shriver National Institute of Child Health and Human Development [T32HD057850]
- Mabel A. Woodyard Fellowship in Neurodegenerative Disorders
- National Institute on Aging of the National Institutes of Health [K01AG058785]
The study investigated the reliability and validity of pupillary response during dual-task balance conditions in individuals with Parkinson disease (PD). The results showed excellent test-retest reliability and validity of pupillary response in PD patients and healthy controls during dual-task balance. Increased mental demand was significantly correlated with increased pupillary response in individuals with PD.
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. Pearson's 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. (C) 2020 by the American Congress of Rehabilitation Medicine
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