The effect of exercise intensity and cardiorespiratory fitness on the kinetic response of middle cerebral artery blood velocity during exercise in healthy adults
Max E. Weston, Alan R. Barker, Owen W. Tomlinson, Jeff S. Coombes, Tom G. Bailey, Bert Bond
Abstract
This is the first study to model the MCAv kinetic response to moderate- and heavy-intensity cycling in healthy adults. This study found that the amplitude of the exponential rise in MCAv at exercise onset was greater during heavy-intensity exercise (∼34%) compared with moderate-intensity exercise (∼19%), but the time-based characteristics of the responses were similar between intensities. Higher cardiorespiratory fitness was not associated with a greater or faster MCAv response to moderate- or heavy-intensity exercise.
Topics & Concepts
Cardiorespiratory fitnessIntensity (physics)Exercise intensityMiddle cerebral arteryMedicineCardiologyHeart ratePhysical exerciseInternal medicinePhysical therapyBlood pressurePhysical medicine and rehabilitationPhysicsQuantum mechanicsIschemiaCardiovascular and exercise physiologyOptical Imaging and Spectroscopy TechniquesCardiovascular Health and Disease Prevention