Increased skeletal intermuscular fat is associated with reduced exercise capacity in cancer survivors: a cross-sectional study

Autor: Kerryn W. Reding, Peter Brubaker, Ralph D’Agostino, Dalane W. Kitzman, Barbara Nicklas, Dale Langford, Michael Grodesky, W. Gregory Hundley
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Cardio-Oncology, Vol 5, Iss 1, Pp 1-6 (2019)
Druh dokumentu: article
ISSN: 2057-3804
DOI: 10.1186/s40959-019-0038-5
Popis: Abstract Background Cancer survivors experience on average a 20% reduction in peak exercise capacity (VO2 peak) post-cancer treatment. Intermuscular fat (IMF) is a strong predictor of reduced exercise capacity in heart failure (HF) patients; however it is unknown whether increased IMF is related to reduced VO2 peak in cancer survivors. Methods and results Twenty eight individuals: 14 cancer survivors > 12-months post-cancer treatment and 14 individuals without cancer were matched on age, gender, and body mass index (BMI). Participants underwent magnetic resonance imaging (MRI) assessments of IMF within the paraspinal muscles, VO2 peak and exercise-associated measures of left ventricular ejection fraction (LVEF). Blinded analyses were performed. Associations between the ratio of IMF to skeletal muscle (SM) were estimated using Pearson’s partial correlation coefficients. Individuals with cancer and non-cancer comparators were of similar age (54 ± 17 versus 54 ± 15 years; p = 1.0), gender (5 men and 9 women, both groups), and BMI (27 ± 4 versus 26 ± 4; p = 0.57). Peak VO2 was 22% lower in cancer survivors versus non-cancer comparators (26.9 vs 34.3 ml/kg/min; p = 0.005), and was correlated with IMF:SM in both cancer survivors and non-cancer individuals after accounting for exercise-associated LVEF, resting LVEF, BMI, other body fat depots, and cardiovascular disease (CVD) co-morbidities (p
Databáze: Directory of Open Access Journals
Externí odkaz: