Cited by 208Balance, Gait, and Falls PreventionContext-Aware Activity Recognition SystemsMotor Control and Adaptation

Can an accelerometer enhance the utility of the Timed Up & Go Test when evaluating patients with Parkinson's disease?

Weiss, Aner, Herman, Talia, Plotnik, Meir, Brozgol, Marina, Maidan, Inbal, Giladi, Nir, Gurevich, Tanya, Hausdorff, Jeffrey M.·2010·Medical Engineering & Physics

Abstract

INTRODUCTION: The Timed Up and Go (TUG) test is a widely used measure of mobility and fall risk in older adults and in Parkinson's disease (PD). We tested the hypothesis that body-fixed accelerometers can provide insight into TUG performance in PD patients. METHODS: We examined 17 patients with PD (Hoehn and Yahr score: 2.7+/-0.7; ON state) and 15 age-matched healthy controls; mean ages were 66.8+/-5.9 years, 67.6+/-9.6 years, respectively. Subjects wore a 3D-accelerometer (ADXL330, Analog Devices) on the lower back while performing the TUG test. Sit-to-Stand and Stand-to-Sit times were extracted from the anterior-posterior (AP) signal. Parameters included Sit-to-Stand, Stand-to-Sit durations, amplitude range (Range) and slopes (Jerk). Acceleration median and standard deviation (SD) were also calculated. RESULTS: Stopwatch-based TUG duration tended to be higher for the PD patients compared to the control group, although not significantly (p=0.08). In contrast, the TUG duration that was extracted from the acceleration signal was significantly (p<0.02) higher in the PD group compared to the control group. Many acceleration-parameters were also significantly different (p<0.05) between groups; most were not correlated with TUG duration. CONCLUSIONS: Accelerometer-derived parameters are sensitive to group differences, indicating that PD patients have poorer mobility during specific aspects of the TUG. In addition to test duration, these measures may serve as complementary and objective bio-markers of PD to augment the evaluation of disease progression and the response to therapeutic interventions.

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Crossref · 10.1016/j.medengphy.2009.10.015

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  • Salarian et al and Weiss et al have shown that instrumented versions of the timed up-and-go test lead to improved sensitivity to gait impairments due to Parkinson's disease compared to observation methods.

    “They have shown that instrumented tests lead to an improved sensitivity to gait impairments compared to observation methods.”

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Authors
Weiss, A., Herman, T., Plotnik, M., Brozgol, M., Maidan, I., Giladi, N., Gurevich, T., & Hausdorff, J. M.
Affiliations
  • Tel Aviv Sourasky Medical Center (IL)
  • Tel Aviv University (IL)
  • Harvard University (US)
Corresponding author
Hausdorff, Jeffrey M.
Venue
Medical Engineering & Physics
Published
2009-11-25
Volume
32
Issue
2
Pages
119-125
ISSN
  • 1350-4533 (ISSN-L)
  • 1873-4030
OpenAlex
W2139868675
Cited by
207
References
23
Citations by year
2026: 7 · 2025: 5 · 2024: 7 · 2023: 11 · 2022: 10 · 2021: 8 · 2020: 15 · 2019: 14 · 2018: 11 · 2017: 18 · 2016: 19 · 2015: 20 · 2014: 16 · 2013: 19 · 2012: 10
FWCI
22.86
Type
journal article
Language
en
Open access
closed
Locations
  • Medical Engineering & Physics (publishedVersion)
  • PubMed (publishedVersion)
Funders
European Commission
Topics
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
Parkinson's disease, Timed Up and Go test, accelerometer, mobility assessment, fall risk, sit-to-stand, stand-to-sit, acceleration parameter, jerk, objective biomarkers, disease progression
MeSH terms
Accidental Falls, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Motor Activity, Parkinson Disease, Posture, Time Factors, Case-Control Studies, Risk Assessment

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