A mini-review on functional near-infrared spectroscopy (fNIRS): Where do we stand, and where should we go?

This mini-review is aimed at briefly summarizing the present status of functional near-infrared spectroscopy (fNIRS) and predicting where the technique should go in the next decade. This mini-review quotes 33 articles on the different fNIRS basics …

Effectiveness of 6-Ischemic Cuff Near Infrared Spectroscopy Mitochondrial Capactity Test

Near-Infrared Spectroscopy (NIRS) has been used to measure muscle mitochondrial capacity. The current method requires as many as 22 short ischemic occlusions to generate a recovery curve for mitochondrial capacity. PURPOSE: To determine the …

Optic nerve hypoplasia

Optic nerve hypoplasia is a congenital anomaly in which the optic disc is abnormally small and is associated with other neurodevelopmental disorders. Optical coherence tomography (OCT) can be used to measure the retinal nerve fiber layer and can add …

An Investigation into the Effect of Skeletal Muscle Metabolic Function & Cardio-Respiratory Fitness on Exercise Capacity in the Presence and Absence of Disease

It is uncommon for cardio-respiratory fitness and skeletal muscle metabolic function to be assessed independently within an exercise test. Exercise capacity may require adaptation of one or other of these systems to a greater or lesser extent and the …

Effects of Aerobic Exercise on Cognitive and Cerebrovascular Function in Hypertensive Adults

The presence of hypertension in middle-age is a major risk factor for later-life development of cognitive and cardiovascular disease. Exercise is widely recommended to combat vascular and brain aging in hypertension. We sought to compare the effects …

Impact of Prolonged Sitting on Cognitive Function : Implications for Cardio-metabolic Risk

Purpose: To determine if prolonged sitting negatively impacts cognitive function, cerebral perfusion, and central cardiovascular hemodynamics; and secondly, to test whether weight or physical activity status alters this response. Methods: …

Oxygen Delivery and Utilization During Acute Dynamic Exercise

Background and aims Polycystic ovary syndrome (PCOS) and type 1 diabetes are relatively common endocrinopathies, often manifesting across most of the lifespan. Cardiovascular risk is increased in both PCOS and type 1 diabetes, affecting patients' …

P77 Near Infrared Spectroscopy (Nirs) Can Detect Differences in Microvascular Reactive Hyperaemia in the Presence of Hypertension

Background: Hypertension has adverse effects on microvascular function but there are limited methods that permit non-invasive assessment of the microcirculation in man in vivo. We used Near Infrared Spectroscopy (NIRS) to assess microvascular …

THE IMMEDIATE AND EXTENDED EFFECT OF DIET AND EXERCISE ON METABOLIC FLEXIBILTY A Dissertation Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Schoo

Metabolic inflexibility is an emerging physiological marker indicative of metabolic dysfunction and associated with type 2 diabetes (T2D) and obesity. Exercise is a potent stimulus to improve metabolic health, however, not much is known about the …

Near-infrared spectroscopy and skeletal muscle oxidative function in vivo in health and disease: a review from an exercise physiology perspective

In most daily activities related to work or leisure, the energy for muscle work substantially comes from oxidative metabolism. Functional limitations or impairments of this metabolism can significantly affect exercise tolerance and performance. As a …

MAP, cerebral Oxygenation and tes-mep variabilty's in scolios surgery

Objective: At this moment, a wake-up test needs to be done when amplitudes of TES-MEP monitoring decrease irreversible during scoliosis surgery, what mostly turns out to be a false-positive. To make TES-MEP measurements more reliable, we need to know …

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 …

The brain mechanisms underlying walking in complex situations in healthy older adults and persons with parkinson's disease

Introduction: The ability to walk safely and independently is a fundamental component of daily living activities. Walking while dual tasking and obstacle negotiation are two tasks that have been used to investigate walking in complex situations. …

Singular spectrum analysis as a preprocessing filtering step for fNIRS brain computer interfaces

Near Infrared Spectroscopy is a method that measures the brain's haemodynamic response. It is of interest in brain-computer interfaces where haemodynamic patterns in motor tasks are exploited to detect movement. However, the NIRS signal is usually …

Oxygen Consumption in Cycling: The Relationship between Whole Body Pulmonary O2 Consumption and Muscle Oxygenation in Different Muscles During Constant-Load Cycling

Introduction: Oxygen consumption during prolonged cycling exercise has been extensively studied at different work rates and durations, but with the focus primarily on pulmonary oxygen consumption (pVO2). The purpose of this study was to use …

Effects of Aging on Cerebral Oxygenation during Working-Memory Performance: A Functional Near-Infrared Spectroscopy Study

Working memory is sensitive to aging-related decline. Evidence exists that aging is accompanied by a reorganization of the working-memory circuitry, but the underlying neurocognitive mechanisms are unclear. In this study, we examined aging-related …

Muscle Oxidative Capacity: an Indicator of Functional Status in People With Multiple Sclerosis

PURPOSE: Evaluation of skeletal muscle oxidative capacity in people with multiple sclerosis (MS) using near-infrared spectroscopy (NIRS) and its relationship with measures of walking disability. METHODS: Muscle oxidative capacity was measured in an …

Repetitive strain injury: a novel focus on an ancient problem

Proefschrift Radboud Universiteit Nijmegen.

A method to calculate arterial and venous saturation from near infrared spectroscopy (NIRS)

For adequate development and functioning of the neonatal brain, sufficient oxygen (O2) should be available. With a fast sampling (fs 50 Hz) continuous wave NIRS device, arterial (SaO2) and venous (SvO2) saturation can be measured using the …