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Updated: Jul 15, 2025

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Quantitative Static and Dynamic Assessment of Balance Control in Stroke Patients
Published on: May 17, 2020
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An initial set of reference values for the Balance Tracking System (BTrackS) Limits of Stability protocol.
Michael R Nolff1, Shweta Kapur1, Bradley J Kendall2
1Department of Human Movement Science, Oakland University, 433 Meadow Brook Road, Rochester, MI 48309, USA.
Gait & Posture
|September 27, 2023
Summary
This study establishes reference values for the Balance Tracking System (BTrackS) Limits of Stability (LOS) protocol. Taller men generally exhibit larger LOS Areas, aiding in dynamic balance assessment.
Area of Science:
- Biomechanics
- Postural Control
- Human Movement Analysis
Background:
- The Balance Tracking System (BTrackS) Limits of Stability (LOS) protocol is a novel method for assessing dynamic postural control.
- Previous studies confirmed the reliability of the BTrackS LOS protocol.
- A significant gap exists in normative data for interpreting BTrackS LOS results.
Purpose of the Study:
- To determine typical reference values for the BTrackS LOS protocol.
- To investigate the influence of sex, height, and BMI on BTrackS LOS outcomes.
- To provide normative data for clinical and research applications.
Main Methods:
- A cross-sectional study involving 800 healthy young adults (18-29 years).
- Participants completed the BTrackS LOS protocol.
- Data on sex, height, and weight were collected for regression analysis.
Main Results:
- Stepwise linear regression revealed that LOS Area was significantly larger in taller individuals and in men.
- Four percentile ranking categories were developed based on these findings.
- Associated look-up tables were created for practical application.
Conclusions:
- The established reference values provide essential guidance for clinicians and researchers.
- This data facilitates the identification of dynamic balance abnormalities using BTrackS LOS testing.
- The study contributes to a more accurate interpretation of postural control assessments.
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