Associations of Laboratory-based Gait Speed and Daily-Life Gait Speed With Frailty, Sarcopenia, and Life-Space Mobility in Community-Dwelling Older Adults

Although daily-life gait speed (DGS) may better reflect real-world walking than laboratory- or clinic-based gait speed (LGS), it is unclear whether DGS provides superior discriminatory value for clinical outcomes. We compared LGS and DGS on their discriminative abilities concerning the risk of prefrailty/frailty, probable sarcopenia, and restricted life-space mobility (RLSM) in community-dwelling middle-aged and older adults.