OxyMon

Our most advanced and versatile fNIRS system


Publications using the OxyMon

A double-blind, placebo-controlled study evaluating the effects of caffeine and L-theanine both alone and in combination on cerebral blood flow, cognition and mood

Abstract Rationale: Evidence suggests interactive effects of the tea components caffeine and L-theanine on behaviour, yet no data exists exploring the impact of the two on cerebral blood flow (CBF). Objectives: The current placebo-controlled, …

Oxygen Delivery and Muscle Deoxygenation during Continuous, Long- and Short-Interval Exercise

This study compared the O2 delivery (a central determinant of VO2) and muscle deoxygenation (reflecting a peripheral determinant of VO2) during intense continuous, long-interval, and short-interval exercise protocols. Twelve young men completed the 3 …

Electrocortical and Hemodynamic Changes within the Brain during Incremental Bicycle Exercise in Normoxia and Hypoxia—A Combined EEG/NIRS Study

Title from masthead (publisher's Web site, viewed Apr. 16, 2003).

Cortical excitability and the shape of the haemodynamic response

Individual differences in the temporal dynamics of the haemodynamic response can reflect cortical excitation and can reveal underlying cortical physiology. Here, we show differences in the shape of the haemodynamic response that are dependent on …

Effects of low-volume, high-intensity whole-body calisthenics on Army ROTC cadets

Our objective was to determine the effects of high-intensity interval training (HIT) on fitness in Army Reserve Officers' Training Corps cadets. Twenty-six college-aged (20.5 ± 1.7 years) participants completed 4 weeks of exercise training 3 …

Activation patterns of different brain areas during incremental exercise measured by near-infrared spectroscopy

Recent studies postulated that increased oxygenation of the prefrontal cortex (PFC) during elevating exercise intensities reflects a specific activation of this region. Furthermore, the drop in PFC oxygenation often measured shortly before exhaustion …

Changes in oxygenated hemoglobin link freezing of gait to frontal activation in patients with Parkinson disease: an fNIRS study of transient motor-cognitive failures

Recent studies have suggested that deficits in executive function contribute to freezing of gait (FOG), an episodic disturbance common among patients with Parkinson's disease (PD). To date, most findings provide only indirect evidence of this …

Reliability of the vascular claudication reporting in diabetic patients with peripheral arterial disease: A study with near-infrared spectroscopy

We evaluated whether altered reporting of ischemic symptoms occurs in diabetic patients with peripheral arterial disease (PAD) and stable claudication. Patients (n = 152) with claudication were enrolled (120 males; mean age: 71.0 ± 8.6 years): 74 …

Central and peripheral cardiovascular impairments limit VO2peak in Type 1 diabetes

PURPOSE: Cardiovascular risk, predicted by peak O2 uptake (VO2peak), is increased in type 1 diabetes. We examined the contribution of central and peripheral mechanisms to VO2peak in physically active adults with type 1 diabetes. METHODS: Seven men …

Interval exercise, but not endurance exercise, prevents endothelial ischemia-reperfusion injury in healthy subjects

Endothelial ischemia-reperfusion (I/R) injury importantly contributes to the poor prognosis during ischemic (myocardial) events. Preconditioning, i.e., repeated exposure to short periods of ischemia, effectively reduces endothelial I/R injury. In the …

Adaptation of local muscle blood flow and surface electromyography to repeated bouts of eccentric exercise

Hosseinzadeh, M, Andersen, OK, Arendt-Nielsen, L, Samani, A, Kamavuako, EN, and Madeleine, P. Adaptation of local muscle blood flow and surface electromyography to repeated bouts of eccentric exercise. J Strength Cond Res 29(4): 1017-1026, 2015 - The …

Adaptations of motor neural structures' activity to lapses in attention

Sustained attention is fundamental for cognition and when impaired, impacts negatively on important contemporary living skills. Degradation in sustained attention is characterized by the time-on-task (TOT) effect, which manifests as a gradual …

Aerobic fitness influences cerebral oxygenation response to maximal exercise in healthy subjects

The study examined whether the aerobic fitness level modifies the cerebral oxygenation response to incremental ramp exercise, and more specifically the decline in cerebral oxygenation from heavy exercise up to maximal intensities. 11 untrained …

An association analysis between psychophysical characteristics and genome-wide gene expression changes in human adaptation to the extreme climate at the Antarctic Dome Argus

Genome-wide gene expression measurements have enabled comprehensive studies that integrate the changes of gene expression and phenotypic information to uncover their novel associations. Here we reported the association analysis between psychophysical …

Cardiometabolic and traditional cardiovascular risk factors and their potential impact on macrovascular and microvascular function: Preliminary data

We studied the relationship between cardiovascular status (CV) and risk factor numbers, macrovascular (flow mediated dilatation: FMD) and microvascular function using near-infrared spectroscopy (NIRS) in adults with different CV status. Seventy …

Cardiorespiratory function before and after aerobic exercise training in patients with interstitial lung disease

PURPOSE:: To characterize the cardiorespiratory response to exercise before and after aerobic exercise training in patients with interstitial lung disease. METHODS:: We performed a clinical study, examining 13 patients (New York Heart …

Cortical motor output decreases after neuromuscular fatigue induced by electrical stimulation of the plantar flexor muscles

Aim: Neuromuscular electrical stimulation (NMES) causes early onset of neuromuscular fatigue. Peripheral electrophysiological explorations suggest that supra-spinal alterations are involved through sensitive afferent pathways. As sensory input is …

Effect of pedaling cadence on muscle oxygenation during high-intensity cycling until exhaustion: a comparison between untrained subjects and triathletes

Purpose: The aim of this study was to compare the muscle oxygenation between trained and untrained subjects during heavy exercise until exhaustion at two extreme pedaling cadences using a NIRS system. Methods: Nine untrained male subjects and nine …

Effects of brief aquatic exercise in multiple sclerosis on mobility and function

Background: Multiple sclerosis is a demyelinating disorder that impacts mobility and function. The benefits of exercise on multiple sclerosis symptoms have been demonstrated. Exercise is proven to increase cerebral blood flow, and improve oxygen …

Exercise Based- Pain Relief Program: Is there any Effect of Repeated Bout of Eccentric Exercise for Relieving Musculoskeletal Pain?

Musculoskeletal pain is one of the most common causes of chronic pain. Exercise- based pain management programs have been suggested as an effective alternative for relieving from musculoskeletal pain; however the pain which is experienced after …