Association between Diagnostic Indicators of Sarcopenia, Physical Activity, and Femoral Neck Bone Mineral Density in Community-Dwelling Older Adults

Key Points

• The study aims to investigate the relationship between diagnostic indicators of sarcopenia, physical activity, and femoral neck bone mineral density in older adults.
• Analyzed 285 community-dwelling older adults for sarcopenia indicators including muscle mass index, grip strength, and gait speed.
• Categorized subjects based on muscle loss, strength loss, and reduced gait speed into normal, pre-sarcopenia, and sarcopenia groups.
• Determined bone mineral density categories as normal, osteopenia, and osteoporosis.
• Employed logistic regression analysis to assess relationships between indicators and bone density, considering physical activity levels.
• Lower muscle mass, strength, and gait speed groups showed significantly higher odds for osteopenia and osteoporosis compared to normal group.
• Inactive group had higher exposure risk for osteoporosis than active group.
• Physical activity partially mediated the relationship between sarcopenia indicators and bone mineral density.

Abstract