Respiratory impairment and dyspnea and their associations with physical inactivity and mobility in sedentary community-dwelling older persons.
Vaz Fragoso CA, Beavers DP, Hankinson JL, Flynn G, Berra K, Kritchevsky SB, Liu CK, McDermott MM, Manini TM, Rejeski WJ, Gill TM. Respiratory impairment and dyspnea and their associations with physical inactivity and mobility in sedentary community-dwelling older persons. J Am Geriatr Soc. 2014 Apr; 62(4):622-8.