Muscular exercise requires transitions to and from metabolic rates often exceeding an order
of magnitude above resting and places prodigious demands on the oxidative machinery and …

Despite limited scientific evidence supporting their effectiveness, warm-up routines prior to
exercise are a well-accepted practice. The majority of the effects of warm up have been …

Dietary nitrate (NO3−) supplementation has been shown to reduce resting blood pressure
and alter the physiological response to exercise in young adults. We investigated whether …

The early time course of adaptation of pulmonary O2 uptake (V̇o2p)(reflecting muscle O2
consumption) and muscle deoxygenation kinetics (reflecting the rate of O2 extraction) were …

Despite its crucial importance, scientists interested in the limitations of human physical
performance have only just started to give the field of oxygen uptake kinetics the attention it …

Physical Activity Instruction of Older Adults, Second Edition, is the most comprehensive text
available for current and future fitness professionals who want to design and implement …

Other than during sleep and contrived laboratory testing protocols, humans rarely exist in
prolonged metabolic steady states; rather, they transition among different metabolic rates (V …

Aging is associated with a progressive decline in the capacity for physical activity. Central to
this decline is a reduction in the maximal rate of oxygen utilization, or V O2 max. This critical …

We investigated the effects of dietary nitrate (NO3−) supplementation on the concentration of
plasma nitrite ([NO2−]), oxygen uptake (V̇o2) kinetics, and exercise tolerance in normoxia …

Objectives: The aim of this study was to determine whether changes in oxygen efficiency
occur with aging or exercise training in healthy young and older subjects. Background …