Time-course of V<scp>o</scp><sub>2</sub> kinetics responses during moderate-intensity exercise subsequent to HIIT versus moderate-intensity continuous training in type 2 diabetes
Norita Gildea, Adam McDermott, Joel Rocha, Donal O’Shea, Simon Green, Mikel Egaña
Abstract
High-intensity interval training and moderate-intensity continuous training elicited faster pulmonary oxygen uptake (V̇o 2 ) kinetics during moderate-intensity cycling within 3 wk of training with no further changes thereafter in individuals with type 2 diabetes. These adaptations were accompanied by unaltered near-infrared spectroscopy-derived muscle deoxygenation (i.e. deoxygenated hemoglobin and myoglobin concentration, [HHb+Mb]) kinetics and transiently reduced Δ[HHb+Mb]-to-ΔV̇o 2 ratio, suggesting an enhanced blood flow distribution within the active muscles subsequent to both training interventions.
Topics & Concepts
MyoglobinDeoxygenationIntensity (physics)High-intensity interval trainingHemoglobinKineticsInternal medicineInterval trainingChemistryCyclingEndocrinologyVentilatory thresholdCardiorespiratory fitnessType 2 diabetesVO2 maxDiabetes mellitusMedicineBiochemistryHeart rateBlood pressureQuantum mechanicsHistoryPhysicsArchaeologyCatalysisCardiovascular and exercise physiologyHeart Rate Variability and Autonomic ControlCardiovascular Effects of Exercise