Lower extremity strength and power are associated with 400-meter walk time in older adults: The InCHIANTI study.
Marsh AP, Miller ME, Saikin AM, Rejeski WJ, Hu N, Lauretani F, Bandinelli S, Guralnik JM, Ferrucci L. Lower extremity strength and power are associated with 400-meter walk time in older adults: The InCHIANTI study. J Gerontol A Biol Sci Med Sci. 2006 Nov; 61(11):1186-93.