Fat Oxidation Kinetics Is Related to Muscle Deoxygenation Kinetics During Exercise
نویسندگان
چکیده
منابع مشابه
Spatial heterogeneity of quadriceps muscle deoxygenation kinetics during cycle exercise.
To test the hypothesis that, during exercise, substantial heterogeneity of muscle hemoglobin and myoglobin deoxygenation [deoxy(Hb + Mb)] dynamics exists and to determine whether such heterogeneity is associated with the speed of pulmonary O(2) uptake (pVo(2)) kinetics, we adapted multi-optical fibers near-infrared spectroscopy (NIRS) to characterize the spatial distribution of muscle deoxygena...
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We investigated the effects of prior heavy exercise on the spatial heterogeneity of muscle deoxygenation kinetics and the relationship to the pulmonary O(2) uptake (pVO(2)) kinetics during subsequent heavy exercise. Seven healthy men completed two 6-min bouts of heavy work rate cycling exercise, separated by 6 min of unloaded exercise. The changes in the concentration of deoxyhemoglobin/myoglob...
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The temporal relationship between the kinetics of phase 2 pulmonary O2 uptake (Vo -->Vo2p) and deoxygenation of the vastus lateralis muscle was examined during moderate-intensity leg-cycling exercise. Young adults (5 men, 6 women; 23 +/- 3 yr; mean +/- SD) performed repeated transitions on 3 separate days from 20 W to a constant work rate corresponding to 80% of lactate threshold. Breath-by-bre...
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The effects of controlled voluntary hyperventilation (Hyp) on phosphocreatine (PCr) kinetics and muscle deoxygenation were examined during moderate-intensity plantar flexion exercise. Male subjects (n = 7) performed trials consisting of 20-min rest, 6-min exercise, and 10-min recovery in control [Con; end-tidal Pco(2) (Pet(CO(2))) approximately 33 mmHg] and Hyp (Pet(CO(2)) approximately 17 mmHg...
متن کاملWhat is the effect of ischemic preconditioning on the kinetics of pulmonary oxygen uptake and muscle deoxygenation during exercise?
Ischemic preconditioning (IPC, brief cycles of ischemia) induces protection against ischemia–reperfusion injury, due to IPC-mediated change in the metabolism of skeletal muscles and microand macrovascular function. Since high-intensity aerobic exercise depends on such physiological factors, it has been hypothesized that IPC can also improve exercise performance. Although some studies confirmed ...
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ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2020
ISSN: 1664-042X
DOI: 10.3389/fphys.2020.00571