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Updated: Jul 20, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
Body weight is a strong predictor of postural stability
Olivier Hue1, Martin Simoneau, Julie Marcotte
1Faculty of Medicine, Department of Social and Preventive Medicine, Division of Kinesiology, Laval University, PEPS, Québec G1K 7P4, Canada.
Increased body weight significantly reduces balance stability, a key factor in daily activities. This finding highlights body weight as a potential risk factor for falls, especially in older adults and those with obesity.
Area of Science:
- Biomechanics
- Gerontology
- Public Health
Background:
- Maintaining balance is crucial for daily activities and preventing falls.
- Obesity is a growing public health concern with potential impacts on physical function.
- Understanding factors influencing balance stability is essential for fall prevention strategies.
Purpose of the Study:
- To investigate the predictive value of body weight on balance stability.
- To determine the contribution of body weight, age, height, and foot length to balance control.
- To assess the influence of visual input on body weight's effect on balance.
Main Methods:
- Assessed balance stability in 59 males using a force platform.
- Measured body weight, BMI, age, height, and foot length.
- Employed stepwise multiple regression analysis with and without visual input.
Main Results:
- Body weight accounted for 52-54% of the variance in balance stability.
- Age and height added a small but significant percentage to the predictive model.
- A strong negative correlation was found between body weight and balance stability.
Conclusions:
- Higher body weight is a significant predictor of decreased balance stability.
- Body weight may be an independent risk factor for falls.
- Further research is needed on obesity, aging, and fall-related injuries.
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