Enhanced Walking-Induced Fat Oxidation by New Zealand Blackcurrant Extract Is Body Composition-Dependent in Recreationally Active Adult Females.
Mark Elisabeth Theodorus WillemsMilena BanicRoseanna CaddenLara BarnettPublished in: Nutrients (2022)
New Zealand blackcurrant (NZBC) extract enhanced cycling-induced fat oxidation in female endurance athletes. We examined in recreationally active females the effects of NZBC extract on physiological and metabolic responses by moderate-intensity walking and the relationship of fat oxidation changes with focus on body composition parameters. Twelve females (age: 21 ± 2 y, BMI: 23.6 ± 3.1 kg·m -2 ) volunteered. Bioelectrical bioimpedance analysis was used for body composition measurements. Resting metabolic equivalent (1-MET) was 3.31 ± 0.66 mL·kg -1 ·min -1 . Participants completed an incremental walking test with oxygen uptake measurements to individualize the treadmill walking speed at 5-MET. In a randomized, double-blind, cross-over design, the 30 min morning walks were in the same phase of each participant's menstrual cycle. No changes by NZBC extract were observed for walking-induced heart rate, minute ventilation, oxygen uptake, and carbon dioxide production. NZBC extract enhanced fat oxidation (10 responders, range: 10-66%). There was a significant correlation for changes in fat oxidation with body mass index; body fat% in legs, arms, and trunk; and a trend with fat oxidation at rest but not with body mass and habitual anthocyanin intake. The NZBC extract responsiveness of walking-induced fat oxidation is body composition-dependent and higher in young-adult females with higher body fat% in legs, arms, and trunk.
Keyphrases
- body composition
- resistance training
- adipose tissue
- bone mineral density
- heart rate
- oxidative stress
- hydrogen peroxide
- lower limb
- diabetic rats
- body mass index
- high glucose
- fatty acid
- high intensity
- heart rate variability
- carbon dioxide
- young adults
- drug induced
- endothelial cells
- blood pressure
- randomized controlled trial
- computed tomography
- visible light
- magnetic resonance
- skeletal muscle
- weight gain
- weight loss
- acute respiratory distress syndrome
- respiratory failure