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Home-Based Physical Activity and Diet Intervention to Improve Physical Function in Advanced Liver Disease: A Randomized Pilot Trial

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Abstract

Introduction

A decline in physical function is highly prevalent and a poor prognostic factor in cirrhosis. We assessed the benefits of a home-based physical activity program (HB-PAP) in patients with cirrhosis with a randomized pilot trial.

Methods

All participants received a personal activity tracker to monitor daily activities and were given 12 g/day of an essential amino acid supplement. The HB-PAP intervention consisted of biweekly counseling sessions to increase physical activity for 12 weeks. Six-minute walk test (6MWT) and cardiopulmonary exercise testing (CPET) assessed changes in aerobic fitness. Different anthropometric measuring tools were used for skeletal muscle and adiposity assessment.

Results

Seventeen patients (60% male; 29% nonalcoholic steatohepatitis/cryptogenic, 29% hepatitis C, 24% alcohol, 18% other) were randomized, 9 to HB-PAP group. There were no significant differences in MELD-sodium between HB-PAP and controls at baseline or after the 12-week intervention. By the end of study, there was a significant between-group difference in daily step count favoring the active group (2627 [992–4262], p = 0.001), with less sedentary patients in the active group (33–17% vs. 25–43%, p = 0.003). The 6MWT improved in the HB-PAP group (423 ± 26 m vs. 482 ± 35 m), while the controls had a nonsignificant drop (418 ± 26 m vs. 327 ± 74 m) with a significant between-group difference. CPET did not change. Other than an improvement in psoas muscle index, there were no differences in anthropometry, or in quality of life.

Conclusions

HB-PAP maintained physical performance and improved aerobic fitness according to 6MWT but not CPET, supporting the use of personal activity trackers to monitor/guide home-based prehabilitation programs in cirrhosis.

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Abbreviations

6MWT:

Six-minute walk test

ALMI:

Appendicular lean mass index

ACSM:

American College of Sports Medicine

AT:

Adipose tissue

BMI:

Body mass index

CT:

Computed tomography

CPET:

Cardiopulmonary exercise testing

CSA50:

Cross-sectional area at 50% of femur length

DXA:

Dual-energy X-ray absorptiometry

HB-PAP:

Home-based physical activity program

HR:

Heart rate

IQR:

Interquartile range

IMAT:

Intramuscular adipose tissue

LE-LMI:

Lower extremities lean mass index

LMI:

Lean mass index

MELD:

Model for end-stage liver disease

NASH:

Nonalcoholic steatohepatitis

PMI:

Psoas muscle index

RER:

Respiratory exchange ratio

SBP:

Systolic blood pressure

SD:

Standard deviation

SIP:

Sickness impact profile

SMI:

Skeletal muscle index

TMI:

Thigh muscle index

TMV:

Thigh muscle volume

VAT:

Anaerobic threshold

VE/VCO2 :

Ventilatory efficiency

VCO2 :

Carbon dioxide production

VO2 :

Oxygen consumption

VO2peak :

Peak oxygen uptake

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Funding

This study was funded by the University of Arkansas for Medical Sciences College of Medicine Clinician Scientist Program. The SliceOmatic software was purchased by VA Rehabilitation Merit Review Award # RX0012030 (RAD). The contents do not represent the views of the VA or US Government.

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Correspondence to Andres Duarte-Rojo.

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Conflict of interest

AAF is co-inventor of the essential amino acid used in this study (US Patent 9,364,463 B2; UAMS; Ferrando, AA/Wolfe, RR-inventors). AAF was blinded to all data acquisition, consolidation, and interpretation. ADR and MAD advise for Axcella Health.

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Chen, H.W., Ferrando, A., White, M.G. et al. Home-Based Physical Activity and Diet Intervention to Improve Physical Function in Advanced Liver Disease: A Randomized Pilot Trial. Dig Dis Sci 65, 3350–3359 (2020). https://doi.org/10.1007/s10620-019-06034-2

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  • DOI: https://doi.org/10.1007/s10620-019-06034-2

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