RT Journal Article SR Electronic T1 Commentary on “Differential effects of strength versus power training on bone mineral density in postmenopausal women: a 2-year longitudinal studyDifferential effects of strength versus power training on bone mineral density in postmenopausal women: a 2-year longitudinal study” JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 655 OP 655 DO 10.1136/bjsm.2007.039875 VO 41 IS 10 A1 Elisabeth Preisinger YR 2007 UL http://bjsm.bmj.com/content/41/10/655.abstract AB