Saavedra JM, Lefferts EC, Lee DC. Associations of cardiorespiratory fitness and muscular strength with sleep apnea in older adults, American College of Sports Medicine (Annual Conference) 2023. Saavedra JM, Lefferts EC, Lee DC. Associations of cardiorespiratory fitness and muscular strength with sleep apnea in older adults, American College of Sports Medicine (Annual Conference) 2023.