Research appearing in the Scandinavian Journal of Rheumatology (1996;25(Suppl. 103):6-10) looked at members of a running club who were 50 years of age or older. The 537 members were compared to 423 non runners. The runners had increased lumbar bone density, 10% less musculoskeletal pain, and less disability when compared to controls. The runners tended to have more fractures, due to injury; but had fewer fractures of the spine and hip. In general, the runners had higher bone density.