Effects of free mobilization and low- to high-intensity treadmill running on the immobilisation-induced bone loss in rats. - Kannus,P.; Sievänen,H.; Järvinen,T.LN.; Järvinen,M.; Kvist,M.; Oja,P.; Vuori,I.; Jozsa,L. (J Bone Miner Res, 1994)