Alongside surgical and medical advancements in lung transplantation, the demographics of lung-transplant candidates have shifted such that older, sicker patients with an increased co-morbidity burden have experienced increased access to transplant. 1 This has led to concern around the impact of physical and medical frailty on pre-transplant outcomes (delisting, death) and post-transplant morbidity and mortality. 2 Frailty is described as a decreased physiological reserve and increased vulnerability to major stressors and adverse outcomes such as disability, surgical complications, and mortality. 3 Different models of frailty exist including physical or phenotypic frailty (strength, endurance, and physiological functioning,) and cumulative deficits frailty (number of accumulated deficits over time incorporating health conditions, laboratory values, and functional impairments). 3-5 Individuals undergo functional testing as part of the lung-transplant (LTx) candidacy assessment to help determine fitness for