Hemodynamic and behavioral changes in older adults during cognitively demanding dual tasks

Introduction: Executive functions play a fundamental role in walking by integrating information from cognitive-motor pathways. Subtle changes in brain and behavior may help identify older adults who are more susceptible to executive function deficits …

Age and sex differences in frontal lobe cerebral oxygenation in older adults—Normative values using novel, scalable technology: Findings from the Irish Longitudinal Study on Ageing (TILDA)

Aims: Near-infrared spectroscopy (NIRS) is a non-invasive, easy to apply, optical technology for measuring cerebral blood oxygenation, but there is lack of comprehensive population data to aid interpretation and clinical use. Given the importance of …

Muscle Oxygenation Responses to Low-intensity Steady Rate Concentric and Eccentric Cycling

Muscle deoxygenation responses provide information about the training impulse of an exercise session enabling adaptation to be predicted. Our aim was to investigate muscle oxygenation profiles during prolonged low-intensity eccentric and concentric …

Muscle VO2 and forearm blood flow repeatability during venous and arterial occlusions in healthy and coronary heart disease subjects

This study aims were: 1) to assess forearm blood flow (FBF) and muscle oxygen consumption (mVO2) repeatability assessed with near-infra red spectroscopy (NIRS) during venous occlusions (VO) in middle aged healthy subjects and patients with stable …

Breakpoints in ventilation, cerebral and muscle oxygenation, and muscle activity during an incremental cycling exercise

The aim of this study was to locate the breakpoints of cerebral and muscle oxygenation and muscle electrical activity during a ramp exercise in reference to the first and second ventilatory thresholds. Twenty-five cyclists completed a maximal ramp …