For thousands of Americans awaiting organ transplants, the wait can be a death sentence. But new research from Northwestern University offers a lifeline: a structured, physician-guided fitness regimen can slash the risk of dying before a donor organ becomes available.
The study, published in the journal Clinical Gastroenterology and Hepatology, followed nearly 1,300 adult liver transplant candidates at the University of Pittsburgh's transplant center from 2018 to 2022. Of those, 355 were enrolled in a “prehabilitation” program designed to improve physical function.
Researchers measured participants' grip strength, ability to rise from a chair, and balance. They found that 64% of patients in the program improved their scores, and those who improved by at least 0.4 points had roughly a 50% lower risk of dying while on the waitlist.
“It doesn’t matter how severe their disease is,” said Dr. Andres Duarte-Rojo, the study's lead author. “If they exercise and do what we ask them to do, they see a major improvement in their fitness and reduce their mortality risk before transplantation.”
The program is tailored to each patient's limitations. “You don’t send these patients to the gym to lift 100 pounds,” Duarte-Rojo explained. “You have to start low and progress slowly. But we find that the frailest ones often improve the most.”
This approach could be a game-changer for the roughly 100,000 people currently on the U.S. transplant waiting list, according to the United Network for Organ Sharing. Wait times vary by organ, ranging from months to years, and frailty is a known risk factor for waitlist mortality.
The findings come amid broader debates about healthcare access and preventive medicine. As policymakers weigh public health impacts of various regulations, this study underscores the value of low-cost, high-impact interventions.
Duarte-Rojo and his team hope the results will encourage more transplant centers to adopt prehabilitation programs, which could reduce deaths and improve outcomes for patients who ultimately receive transplants.
While the study focused on liver patients, the principles may apply to other transplant candidates. “Frailty is a common issue across all transplant populations,” Duarte-Rojo noted, suggesting that similar programs could benefit those awaiting kidney, heart, or lung transplants.
As the medical community continues to explore ways to improve transplant outcomes, this research offers a clear, actionable path forward—one that doesn't require expensive technology or drugs, just a commitment to exercise and patient-centered care.
