Effects of physical activity and menopausal hormone replacement therapy on postural stability in postmenopausal women--a cross-sectional study.

Objectives: Poor postural stability and muscular strength in postmenopausal women are associated with increased risk of falls and fractures. This study examined whether these risk factors for falls differed according to habitual physical activity and menopausal hormone replacement therapy (HRT) use.

Methods: Subjects were 117 postmenopausal women (mean age 65.