Increased Muscularity Results in Stronger Bones ...

Hip fractures present one of the greatest concerns for people with Osteoporosis. The latest statistics show that 25% of women over 50 who suffer a hip fracture die within 1 year. Exercise has long been shown to help reduce the risk of hip fractures by increasing bone mineral density while improving core strength and balance.

A recent study suggests that women might also want to pack on the muscle. Researchers at the University of Iowa reported that lower-body muscle mass was a better predictor of hipbone mineral density than either strength or physical activity level.

Fifteen hundred men and women over age 50 were evaluated for quadriceps strength and lower-body muscle mass. Although hip BMD and quadricep strength were related, the relationship was not consistent. The relationship between lower-body muscle mass and Hip BMD was maintained even after age, race, and sex were accounted for.

A simple method for identifying individuals at increased risk for a hip fracture can help reduce the mortality associated with Osteoporosis. This study provides insight into such a method. In addition, exercise professionals should rethink program design for older clients to include improvements in both lower body muscle mass and strength for osteoporosis patients.

Segal, N.A. et al (2008) Muscle Mass Is More Strongly Related to Hip Bone Mineral Density Than Is Quadriceps Strength or Lower Activity Level in Adults Over Age 50 Year. Journal of Clinical Densitomitry.