The Single-Leg-Stance Test in Parkinson’s Disease
Open accessAbstract
BACKGROUND: Timed single-leg-stance test (SLST) is widely used to assess postural control in the elderly. In Parkinson's disease (PD), it has been shown that an SLST around 10 seconds or below may be a sensitive indicator of future falls. However, despite its role in fall risk, whether SLST times around 10 seconds marks a clinically important stage of disease progression has largely remained unexplored. METHODS: A cross-sectional study where 27 people with PD were recruited and instructed to undertake timed SLST for both legs was conducted. Disease motor impairment was assessed with the Unified Parkinson's Disease Rating Scale Part 3 (UPDRS-III). RESULTS: This study found that: 1) the SLST in people with PD shows good test-retest reliability; 2) SLST values can be attributed to two non-overlapping clusters: a low (10.4 ± 6.3 seconds) and a high (47.6 ± 11.7 seconds) value SLST group; 3) only the low value SLST group can be considered abnormal when age-matched normative SLST data are taken into account for comparison; and 4) lower UPDRS-III motor performance, and the bradykinesia sub-score in particular, are only associated with the low SLST group. CONCLUSION: These results lend further support that a low SLST time around 10 seconds marks a clinically important stage of disease progression with significant worsening of postural stability in PD.
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The Single Leg Stance Test is widely used in elderly people and in people with neurological disorders, such as Parkinson's disease.
“Single Leg Stance Test (SLS) is widely used in elderly (16) and in people with neurological disorders, such as Parkinson’s disease (17).”
From The instrumented single leg stance test detects early balance impairment in people with multiple sclerosis (2023) · cites this paper as [17]
The Introduction says the SLST has been widely used in the elderly but only “in some cases” in patients with Parkinson’s disease. This source supports use in Parkinson’s disease, the part linked to citation (17), but not the claim that it is widely used across people with neurological disorders. (LLM, conf=0.85)
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- Authors
- Chomiak, T., Pereira, F. V., & Hu, B.
- Affiliations
- University of Calgary (CA)
- Corresponding author
- Chomiak, Taylor
- Hu, Bin
- Venue
- Journal of Clinical Medicine Research
- Publisher
- Elmer Press, Inc.
- Published
- 2015
- Volume
- 7
- Issue
- 3
- Pages
- 182-185
- ISSN
- 1918-3003 (ISSN-L)
- 1918-3011
- PMC
- PMC4285065
- OpenAlex
- W2020165874
- Cited by
- 49
- References
- 21
- Citations by year
- 2026: 6 · 2025: 6 · 2024: 3 · 2023: 9 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 5 · 2018: 2 · 2017: 2 · 2016: 4 · 2015: 2
- FWCI
- 6.91
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Journal of Clinical Medicine Research (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Alberta Health Services
- Topics
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
- Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
- Health Sciences › Medicine › Neurology › Neurological disorders and treatments
- Keywords
- Parkinson's disease, single-leg stance test, postural control, postural stability, bradykinesia, UPDRS-III, disease progression, fall risk, test-retest reliability, reference values
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