Relationships between self-reported lifetime physical activity, estimates of current physical fitness, and aBMD in adult premenopausal women.

Unlabelled: Osteoporosis is common, and physical activity is important in its prevention and treatment. Of the categories of historical physical activity (PA) examined, we found that weight-bearing and very hard physical activity had the strongest relationships with areal bone mineral density (aBMD) throughout growth and into adulthood, while for measures of strength, only grip strength proved to be an independent predictor of aBMD.

Purpose/introduction: To examine relationships between aBMD (total body, lumbar spine, proximal femur, tibial shaft, distal radius) and estimates of historical PA, current strength, and cardiovascular fitness in adult premenopausal women.

Impact exercise and bone density in premenopausal women with below average bone density for age.

Purpose: To study the effects of two home-based impact exercise programs on areal bone mineral density (aBMD) in adult premenopausal women with below average aBMD for age (negative Z-scores; 40.8 years; n = 107).

Methods: Two unilateral impact exercise programs were employed, one targeting the total hip and lumbar spine (n = 42 pairs), the other the distal radius (n = 24 pairs) with some individuals performing both.