The signal intensity (SI) in gradient-echo, echo-planar magnetic resonance images
(repetition time/echo time= 1,000/40) of anterior tibialis muscle in active [estimated energy …

Previous studies show that transient increases in both blood flow and magnetic resonance
image signal intensity (SI) occur in human muscle after brief, single contractions, and that …

Echo-planar magnetic resonance imaging was used to study the effect of exercise rate and
duration on magnetic resonance imaging signal intensity (SI) of anterior tibialis muscle in …

The present study examined the onset and the rate of rise of muscle oxidation during intense
exercise in humans and whether oxygen availability limits muscle oxygen uptake in the …

Transient increases in signal intensity (ΔSI, peak 2.6±0.6%, mean±SE, n= 14) were
observed in axial, gradient‐echo, echo‐planar magnetic resonance images acquired at 1.5 …

A reduction of blood flow to active muscle will precipitate fatigue, and sustained isometric
contractions produce intramuscular and compartmental pressures that can limit flow. The …

Muscle oxygen uptake dynamics at the onset of exercise can be affected by prior heavy
exercise. We tested the hypothesis that elevated forearm blood flow (FBF) following prior …

The time course of exercise‐induced T2‐weighted signal intensity (SI) changes contains an
initial rise, early dip, and secondary rise. The purposes of this study were to test the …

Although skeletal muscle perfusion is fundamental to proper muscle function, in vivo
measurements are typically limited to those of limb or arterial blood flow, rather than flow …

Limb blood flow increases linearly with exercise intensity; however, invasive measurements
of muscle microvascular blood flow during incremental exercise have demonstrated …