Oxygen debt is an old but as yet unresolved issue drawing debate that mitochondrial activity
can be initiated as rapidly as the initiation of work output. Recent NMR studies suggest it …

Near-infrared spectroscopy (NIRS) can be used to measure muscle oxygen consumption
(mVO2) using arterial occlusions. The recovery rate of mVO2 after exercise can provide an …

Near-infrared spectroscopy (NIRS) is a well-known method used to measure muscle
oxygenation and hemodynamics in vivo. The application of arterial occlusions allows for the …

Disorders of mitochondrial metabolism are manifest by inordinate fatigue, weakness, as well
as severe neuromuscular disorders. Diagnosis has required pathologic findings on muscle …

Near-infrared spectrophotometry (NIR) is a non-invasive measure of tissue oxygen delivery
and utilization 1. Its use has been limited, with one notable exception 2, to subjects at rest …

In this study, we tried to continuously measure muscle oxygen consumption (m-VO 2) by
near infrared spectroscopy (NIRS) without arterial occlusions. We used an intermittent …

Most of the knowledge about cell respiration is based on studies of isolated enzymes and
mitochondria. Although essential to identify the biochemical mechanisms and sites of …

Recently, deoxygenated hemoglobin (HHb) has been used as one of the most popular
indicators of muscle O 2 extraction during exercise in the field of exercise physiology …

Near infrared spectroscopy (NIRS) can readily report on changes in blood volume and
oxygenation. However, it has proved more problematic to measure real-time changes in …

One of the main obstacles that has restricted “in vivo” studies of skeletal muscle metabolism
during exercise has been the invasive nature of tissue biopsy and the high cost of …