Hepatic steatosis and NAFLD activity score decreased
with ER but not with EX. β-hydroxybutyrate concentrations
increased significantly in response to ER (0.08
± 0.02 mmol/L vs 0.12 ± 0.04 mmol/L, P = 0.03) but remained
unchanged in response to EX (0.10 ± 0.03 mmol/L
vs 0.11 ± 0.07 mmol/L, P = 0.39). Basal RQ decreased (P
= 0.05) in response to EX, while this change was not
significant after ER (P = 0.38). VO2peak (P < 0.001) and
maximal Fatox during aerobic exercise (P = 0.03) improved
with EX but not with ER (P > 0.05). The increase in
β-hydroxybutyrate concentrations was correlated with the
reduction in hepatic steatosis (r = -0.56, P = 0.04).