Ades, P A. Ballor, D L. Ashikaga, T. Utton, J L. Nair, K S: Weight training improves walking endurance in healthy elderly persons. Ann. Intern. Med., 124: 568-572, 1996.
Gillespie LD, GillesPie WJ, Robertson MC, Lamb SE, Cumming RG, Rowe BH: Interventions for preventing falls in elderly people. Cochrane Database Syst Rev., 3 CD000340, 2001.