Physical Activity and Bone Health Author:Heather McKay, Pekka Kannus, Don Bailey, John Wark, Kim Bennell, Heather McKay Univ. of British Columbia, Canada. Examines effective exercise as it contributes to bone health. For students. Covers basic anatomy and physiology, factors other than exercise influencing bone health, exercising to maintain a healthy skeleton, and the role of exercise in preventing perimenopausal bone loss.