Lipid oxidation

1. Age is associated with lipid oxidation in humans (r = -0.465, P = 0.004).

   “Age and menopausal duration were associated with reduced ΔFATox during walking.”

   Humansduring treadmill walking (0.9 m/s, 0% grade)femalesn = 36

   Menopausal duration and relative skeletal muscle index predict metabolic inflexibility during walking in postmenopausal women with overweight/obesity

   American journal of physiology. Regulatory, integrative and comparative physiology·9 Aug 2026

1. Relative skeletal muscle index predicts lipid oxidation in humans (r = 0.531, P = 0.001).

   “RSMI outperformed exercise capacity and V̇o2 uptake kinetics in predicting ΔFATox during walking.”

   Humansduring treadmill walking (0.9 m/s, 0% grade)femalesn = 36

   Menopausal duration and relative skeletal muscle index predict metabolic inflexibility during walking in postmenopausal women with overweight/obesity

   American journal of physiology. Regulatory, integrative and comparative physiology·9 Aug 2026

More on Relative skeletal muscle index

1. Menopausal duration is associated with lipid oxidation in humans (rs = -0.478, P = 0.004).

   “Menopausal duration was the strongest exploratory predictor of metabolic inflexibility.”

   Humansduring treadmill walking (0.9 m/s, 0% grade)femalesn = 36

   Menopausal duration and relative skeletal muscle index predict metabolic inflexibility during walking in postmenopausal women with overweight/obesity

   American journal of physiology. Regulatory, integrative and comparative physiology·9 Aug 2026