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Updated: Aug 11, 2026
Revised and Neuroimaging-Compatible Versions of the Dual Task Screen
Published on: October 5, 2020
Clinical Determinants of Dual Tasking in People With Premanifest Huntington Disease
Alvaro Reyes1, Danielle M Bartlett2, Timothy J Rankin2,3
1Facultad de Ciencias de la Rehabilitacion, Universidad Andres Bello, Santiago, Chile.
Insights
Dual-tasking is impaired in premanifest Huntington disease (HD). Poor sleep quality worsens cognitive dual-task performance, highlighting the need for sleep assessment in HD management.
Area of Science:
- Neuroscience
- Neurology
- Human Movement Science
Background:
- Dual-tasking deficits are prevalent in Huntington disease (HD), impacting functional independence.
- Limited research exists on the determinants and reliability of dual-tasking measures in HD populations.
Purpose of the Study:
- To investigate clinical determinants of dual-tasking performance in premanifest HD.
- To assess the association between disease burden and dual-tasking in premanifest HD.
- To evaluate the reliability of dual-tasking measures in premanifest HD.
Main Methods:
- Recruited 36 individuals with premanifest HD and 28 healthy controls.
- Administered single-task and dual-task assessments (cognitive and motor components).
- Conducted comprehensive clinical, lifestyle, and disease burden assessments.
Main Results:
- Individuals with premanifest HD showed impaired dual-tasking capacity compared to controls.
- Poorer sleep quality correlated with increased cognitive dual-task cost.
- Dual-task measures demonstrated acceptable test-retest reliability in both groups.
Conclusions:
- Dual-tasking measures are reliable and sensitive in premanifest HD.
- Poor sleep quality is linked to worse dual-task cognitive performance.
- Rehabilitation specialists should consider sleep quality in managing dual-tasking deficits in HD.
Objective:
Dual-tasking deficiencies are common in people with Huntington disease (HD) and contribute to reduced functional independence. To date, few studies have investigated the determinants of dual-tasking deficiencies in this population. The reliability of dual-tasking measures has also been poorly investigated in HD. The purpose of this study was to investigate the influence of clinical determinants on dual-tasking performance and to determine the association of disease burden outcomes on dual-tasking performance in individuals with premanifest HD.
Methods:
Thirty-six individuals with premanifest HD and 28 age- and sex-matched healthy controls were recruited for this study. Participants performed 3 single-task (2 cognitive and 1 motor) and 2 dual-task assessments, comprising motor (postural stability) and cognitive (simple or complex mental arithmetic) components. In addition, participants performed a comprehensive clinical battery comprising motor, cognitive, mood, and sleep assessments as well as lifestyle and disease burden measures.
Results:
Poorer sleep quality was associated with greater cognitive dual-task cost in individuals with premanifest HD. Compared with healthy controls, people with premanifest HD demonstrated an impaired capacity to dual task. Dual-task measures exhibited acceptable test-retest reliability in premanifest HD and healthy control groups.
Conclusion:
These results show that dual-tasking measures are sensitive and reliable in individuals with premanifest HD. Furthermore, poor sleep quality is associated with worse cognitive performance on dual tasks, which should be considered by rehabilitation specialists when examining and therapeutically managing dual-tasking problems in individuals with HD and other neurodegenerative populations in the future.
Impact:
This study adds important knowledge to the sparse literature on dual-tasking deficiencies in people with HD. When examining and therapeutically managing dual-tasking problems in this and other neurodegenerative populations, rehabilitation specialists should consider that people with premanifest HD may have an impaired capacity to dual task. Clinicians also should assess sleep quality, as poorer sleep quality is associated with worse cognitive performance on dual tasks in these individuals.
Lay Summary:
If you have premanifest HD and poor quality of sleep, you may pay more attention to maintaining postural stability rather than performing arithmetic calculations to reduce the risk of falling.
