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Cadence from physical activity trackers for monitoring of home-based exercise intensity in advanced liver disease. Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society Chen, H. W., Ferrando, A. A., Dunn, M. A., Kim, W. R., Duarte-Rojo, A. n. 2020

Abstract

Frailty, a state of decreased physiologic reserve and increased vulnerability to stressors, is known to negatively impact the prognosis of patients with cirrhosis.(1) Moderate-intensity exercise has been recommended by American College of Sports Medicine (ACSM) to promote physiologic adaptation in the general population,(2) however, its definition in end-stage liver disease (ESLD) has not been established. Cadence or per-minute steps has been proposed as a method to monitor exercise intensity and it can be obtained with personal activity trackers (PAT).(3) Although heart rate reserve (HRR) - percentage increase from resting to maximal heart rate (HR) - is recommended to identify moderate-intensity exercise,(2) it has not been evaluated in patients with ESLD, nor has it been compared with cadence. In this study, we aimed to test agreement between cadence, HRR, and a PAT-proprietary algorithm, and evaluate the optimal methods of measuring exercise intensity in ESLD patients as part of a home-based physical activity program (HB-PAP) randomized pilot trial.(4).

View details for DOI 10.1002/lt.25745

View details for PubMedID 32145132