Reliability of Voluntary Step Execution Behavior
Author Information
Author(s): Melzer Itshak, Shtilman Irena, Rosenblatt Noah, Oddsson Lars IE
Primary Institution: NeuroMuscular Research Center, Boston University
Hypothesis
The study investigates the repeatability of ground reaction force parameters during voluntary step execution under single and dual task conditions.
Conclusion
The voluntary step execution test is a reliable measure for assessing dynamic balance function in both healthy adults and elderly individuals.
Supporting Evidence
- Intraclass correlation coefficients were good to excellent across all parameters for the pooled population.
- Foot-off and foot-contact times showed the highest reliability.
- The test was reliable under both single and dual task conditions.
Takeaway
This study shows that a test where people step quickly can help doctors see how well someone can keep their balance, especially when they are distracted.
Methodology
Twenty-four healthy adults and sixteen elderly adults performed a voluntary rapid step execution under single and dual task conditions on three separate occasions.
Limitations
The swing phase duration showed lower reliability, which may be due to variability in step length instructions.
Participant Demographics
24 healthy adults (ages 21-63) and 16 elderly adults (ages 66-87) with no significant neurological or orthopedic disorders.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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