Brisk walking and postural stability: A cross-sectional study in postmenopausal women

Area of Science:

• Gerontology
• Biomechanics
• Exercise Physiology

Background:

• Postural stability is crucial for preventing falls in the elderly.
• Postmenopausal women may experience changes in balance and physical activity levels.
• Brisk walking is a recommended physical activity for older adults.

Purpose of the Study:

• To compare body sway (postural stability) between regular brisk walkers and control subjects in postmenopausal women.
• To examine the relationship between physical activity duration and body sway in this population.

Main Methods:

• 31 healthy postmenopausal women (aged 61-71) participated.
• Body sway was measured using a swaymeter with eyes closed on a compliant surface.
• Physical activity was quantified using waist-worn activity monitors over 3 days.

Main Results:

• Regular brisk walkers exhibited significantly lower body sway (2,958 mm2 min-1) compared to controls (5,225 mm2 min-1).
• A significant negative correlation (r = -0.47) was found between body sway and physical activity duration.
• A dose-response relationship was observed, with higher physical activity levels correlating with better postural stability.

Conclusions:

• Regular brisk walking enhances postural stability in postmenopausal women.
• Physical activity duration demonstrates a dose-response effect on balance.
• Brisk walking presents a viable, low-cost intervention for improving balance and reducing fall risk in the elderly.