Publications using the OxyMon
Impaired muscle oxygenation despite normal pulmonary function in uncomplicated type 2 diabetes
Long-term hyperglycemia in individuals with type 2 diabetes can detrimentally impact pulmonary function and muscle oxygenation. As a result, these factors can impede the body's adaptation to physical exertion. We aimed to evaluate the oxygen pathway …
Tracking the Recovery of a Mild Traumatic Brain Injury Patient utilizing a 60 s Combined Functional Near-Infrared Spectroscopy and Psychomotor Testing Approach A Case Study
Identifying and tracking the recovery of patients with mild traumatic brain injuries (mTBI) has remained elusive due to the lack of non-invasive, objective neuroimaging techniques. The purpose of this case study was to provide a proof of concept for …
Blunted cerebral hemodynamic responses to incremental exercise in patients with end-stage renal disease
Purpose The aims of this study were to compare cerebral hemodynamics and maximal oxygen uptake (VO2peak) in patients with end-stage renal disease (ESRD) vs. age-matched healthy controls during maximal exercise. Methods Twelve patients with ESRD and …
Effect of electrical muscle stimulation on cerebrovascular function and cognitive performance
It is known that electrical muscle stimulation (EMS) can enhance physical function, but its impact on cognition and cerebral hemodynamics is not well-understood. Thus, the purpose of this study was to investigate the effects of one EMS session on …
Hemodynamic and neuromuscular basis of reduced exercise capacity in patients with end-stage renal disease
Purpose The present study aimed to characterize the exercise-induced neuromuscular fatigue and its possible links with cerebral and muscular oxygen supply and utilization to provide mechanistic insights into the reduced exercise capacity …
Neuromuscular electrical stimulation changes glucose, but not its variability in type 2 diabetes: a randomized clinical trial
Neuromuscular electrical stimulation (NMES) can be an alternative to conventional exercising. This randomized clinical trial evaluated the effect of NMES in type 2 diabetes patients. Twenty-eight individuals with type 2 diabetes were assigned to NMES …
Relationship between accelerometer-measured sleep duration and Stroop performance: a functional near-infrared spectroscopy study among young adults
Objectives: Short sleep is becoming more common in modern society. This study aimed to explore the relationship between accelerometer-measured sleep duration and cognitive performance among young adults as well as the underlying hemodynamic …
Effects of concentric and eccentric cycling training on muscular hemodynamic and erythrocyte rheological responses to exercise in sedentary males
Erythrocyte rheological properties contribute to the dynamic regulation of vascular resistance to flow shear force, facilitating blood delivery from the heart to peripheral tissues. Despite improved physical performance, the effects of eccentric …
Evaluation of Morlet Wavelet Analysis for Artifact Detection in Low-Frequency Commercial Near-Infrared Spectroscopy Systems
Regional cerebral oxygen saturation (rSO2), a method of cerebral tissue oxygenation measurement, is recorded using non-invasive near-infrared Spectroscopy (NIRS) devices. A major limitation is that recorded signals often contain artifacts. Manually …
Physiological and perceptual responses to acute arm cranking with blood flow restriction
Introduction: Lower-body aerobic exercise with blood flow restriction (BFR) offers a unique approach for stimulating improvements in muscular function and aerobic capacity. While there are more than 40 reports documenting acute and chronic responses …
Biomarkers of Peripheral Fatigue in Subjects with Vascular and Neurological Motor Disabilities During an Incremental Treadmill Test Using Near-Infrared Spectroscopy
Peripheral artery disease (PAD) is a progressive atherosclerotic disease that affects textgreater8 million Americans.1 Symptoms of PAD are caused by insufficient arterial blood flow to the lower extremities, which often results in ischemia-induced, …
A feasibility study on using fNIRS brain signals to recognize personal thermal sensation and thermal comfort conditions
Background Many studies have shown some relationships between thermal perception (including thermal sensation and thermal comfort) and human physiological parameters, such as brain signals. However, further research is still needed on how these …
Acute hypoxia impairs posterior cerebral bioenergetics and memory in man
Abstract Hypoxia has the potential to impair cognitive function; however, it is still uncertain which cognitive domains are adversely affected. We examined the effects of acute hypoxia (∼7 h) on central executive (Go/No‐Go) and non‐executive …
Impact of blunted cerebral oxygenation on COPD patients’ functional performance
Introduction: Albeit physical activity (PA) has an important role concerning the health of patients with chronic respiratory diseases, it remains unclear how PA patterns compare among different diseases. Aims: To compare PA levels of 3 major chronic …
Brain activation associated with low‐ and high‐intensity concentric versus eccentric isokinetic contractions of the biceps brachii: An textlessspan style="font-variant:small-caps;"textgreaterfNIRStextless/spantextgreater study
Abstract Studies have shown that neural responses following concentric (CON) and eccentric (ECC) muscle contractions are different, which suggests differences in motor control associated with CON and ECC contractions. This study aims to determine …
Muscle oxygen supply impairment during maximal exercise in patients undergoing dialysis therapy
This study aimed to investigate whether Chronic Kidney Disease (CKD) influences O2 supply including O2 delivery and release to the active muscles during maximal physical exercise. Twelve CKD patients undergoing dialysis therapy (HD group) and twelve …
AltitudeOmics: effects of 16 days acclimatization to hypobaric hypoxia on muscle oxygen extraction during incremental exercise
During incremental exercise muscle deoxyhemoglobin (HHb) and oxygen consumption (V̇o 2 ) both increase linearly, and the slope of their relationship is an indirect index of local muscle O 2 extraction. The latter was assessed at sea level, in acute …
The joint effect and hemodynamic mechanism of PA and PM2.5 exposure on cognitive function: A randomized controlled trial study
Background While PM2.5 has been shown to impair cognitive function, physical activity (PA) is known to enhance it. Nonetheless, considering the increased inhalation of PM2.5 during exercise, the potential of PA to counteract the detrimental effects …
Neural mechanisms of long-term exercise intervention on cognitive performance among short-sleep young adults: A hemodynamic study
Objectives Short-sleep is becoming increasingly common and may negatively affect brain function including cognitive ability. Physical exercise has been proved to improve cognitive function while intensity matters. This study was conducted to examine …