Dry cupping therapy for improving nonspecific neck pain and subcutaneous hemodynamics

Context: Dry cupping therapy is a noninvasive treatment commonly used to reduce pain and promote the healing process in various populations, including those with nonspecific neck pain; however, no data are available to support most of this method's …

Rolling massage acutely improves skeletal muscle oxygenation and parameters associated with microvascular reactivity: The first evidence-based study

Although it has been claimed that rolling massage (RM), may lead to improvements in skeletal muscle oxygenation, metabolism, blood flow, and vascular function, scientific evidence has not yet been provided. Thus, the current study investigated the …

The Impact of Cycling Cadence on Respiratory and Hemodynamic Responses to Exercise

Purpose The physiological consequences of freely chosen cadence during cycling remains poorly understood. We sought to determine the effect of cadence on the respiratory and hemodynamic response to cycling exercise. Methods Eleven cyclists (10 males, …

Understanding near infrared spectroscopy and its application to skeletal muscle research

Barstow TJ. Understanding near infrared spectroscopy and its application to skeletal muscle research. J Appl Physiol 126: 1360 –1376, 2019. First published March 7, 2019; doi:10.1152/japplphysiol.00166.2018.—Near infrared spectroscopy (NIRS) is a …

Central cardiovascular hemodynamic response to unilateral handgrip exercise with blood flow restriction

Aim: Exercise training with blood flow restriction (BFR) increases muscle size and strength. However, there is limited investigation into the effects of BFR on cardiovascular health, particularly central hemodynamic load. Purpose: To determine the …

Contrast baths, intramuscular hemodynamics, and oxygenation as monitored by near-infrared spectroscopy

Context: Contrast baths (CB) is a thermal treatment modality used in sports medicine, athletic training, and rehabilitation settings. Proposed physiological effects of CB include increasing tissue blood flow and oxygenation and decreasing tissue …

Focal Hemodynamic Responses in the Stimulated Hemisphere During High-Definition Transcranial Direct Current Stimulation

Objective: High-definition transcranial direct current stimulation (HD-tDCS) using a 4 × 1 electrode montage has been previously shown using modeling and physiological studies to constrain the electric field within the spatial extent of the …

Effects of a pre-workout supplement on hyperemia following leg extension resistance exercise to failure with different resistance loads

Background: We sought to determine if a pre-workout supplement (PWS), containing multiple ingredients thought to enhance blood flow, increases hyperemia associated with resistance training compared to placebo (PBO). Given the potential interaction …

Ratings of Perceived Exertion and Physiological Parameters of Muscle Metabolism in Postmenopausal Women: A Comparison Between Water- and Land-Based Exercise

We compared responses from postmenopausal women living a sedentary lifestyle (n = 15; Mean age= 59; SD = 4.2) to a single bout of water- or land-based exercise with respect to ratings of perceived exertion (RPE), lactate concentration, and muscle …

Impact of flavonoid-rich black tea and beetroot juice on postprandial peripheral vascular resistance and glucose homeostasis in obese, insulin-resistant men: A randomized controlled trial

Background: Insulin-stimulated muscle blood flow facilitates plasma glucose disposal after a meal, a mechanism that is impaired in obese, insulin-resistant volunteers. Nitrate- or flavonoid-rich products, through their proposed effects on nitric …

Subcutaneous and intramuscular hemodynamics and oxygenation after cold-spray application as monitored by near-infrared spectroscopy

Context: Vapocoolant spray, commonly known as cold spray (CS), is a cryotherapy modality used in sports medicine, athletic training, and rehabilitation settings. Proposed physiologic effects of cryotherapy modalities include reductions in tissue …

Reproducibility of near-infrared spectroscopy measurements of oxidative function and postexercise recovery kinetics in the medial gastrocnemius muscle

The purpose of this study was to assess the reproducibility of resting blood flow, resting oxygen consumption, and mitochondrial capacity in skeletal muscle using near-infrared spectroscopy (NIRS). We also determined the influence of 2 exercise …

Acute physiological effects of whole body vibration (WBV) on central hemodynamics, muscle oxygenation and oxygen consumption in individuals with chronic spinal cord injury

Purpose: (1) Investigate the acute effects of whole body vibration (WBV) on central hemodynamic responses, muscle oxygenation and oxygen consumption () in individuals with spinal cord injury (SCI) versus sex, age and activity-matched able-bodied (AB) …

Muscle oxygenation asymmetry in ice speed skaters: Not compensated by compression

Purpose: The current investigation assessed tissue oxygenation and local blood volume in both vastus lateralis muscles during 3000-m race simulations in elite speed skaters on ice and the effects of leg compression on physiological, perceptual, and …

VO 2 on-kinetics in isolated canine muscle in situ during slowed convective O 2 delivery

The purpose of this study was to examine O 2 uptake (VO 2) on-kinetics when the spontaneous blood flow (and therefore O 2 delivery) onresponse was slowed by 25 and 50 s. The isolated gastrocnemius muscle complex (GS) in situ was studied in six …

A prior bout of contractions speeds V̇o2 and blood flow on-kinetics and reduces the V̇o2 slow-component amplitude in canine skeletal muscle contracting in situ

It was the purpose of this study to examine the effect of a priming contractile bout on oxygen, uptake (V̇o2) on-kinetics in highly oxidative skeletal muscle. Canine gastrocnemii (n = 12) were stimulated via their sciatic nerves (8 V, 0.2-ms …

Reduction of oxygenation and blood flow in pedicled bowel segments in the rat and its consequences for anastomotic healing

Purpose: Experimental studies indicate that perioperative hypoperfusion impairs anastomotic healing. In bowel surgery, the part of bowel that will be anastomosed is often pedicled, leaving the blood supply dependent on the marginal artery only. …

The isometric torque at which knee-extensor muscle reoxygenation stops

PURPOSE: We investigated the knee-extensor torque at which reoxygenation (inflow of arterial blood) during an isometric contraction stopped, whether this torque depended on maximal torque capacity (MTC), and whether there were differences among the …