Near infrared spectroscopy (NIRS) is a powerful noninvasive tool with which to study the
matching of oxygen delivery to oxygen utilization and the number of new publications …

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 …

The activities of daily living typically occur at metabolic rates below the maximum rate of
aerobic energy production. Such activity is characteristic of the nonsteady state, where …

Chronic heart failure (CHF) impairs critical structural and functional components of the O2
transport pathway resulting in exercise intolerance and, consequently, reduced quality of …

OBJECTIVE—People with type 2 diabetes have impaired exercise responses even in the
absence of cardiovascular complications. One key factor associated with the exercise …

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 …

New Findings What is the central question of this study? Continuous‐wave near‐infrared
spectroscopy, coupled with venous and arterial occlusions, offers an economical, non …

Resolving the bases for different physiological functioning or exercise performance within a
population is dependent on our understanding of control mechanisms. For example, when …

The time course and mechanisms of adjustment of pulmonary oxygen uptake (V̇o2)
kinetics (time constant τV̇o2p) were examined during step transitions from 20 W to …

To test the hypothesis that, during exercise, substantial heterogeneity of muscle hemoglobin
and myoglobin deoxygenation [deoxy (Hb+ Mb)] dynamics exists and to determine whether …