Henri Meric

• PhD
• University of Perpignan

Endurance exercise places demand on the respiratory system. A COVID-19 infection, which affects the respiratory system, could potentially increase this strain, possibly resulting in decreased endurance capacity. This research sought to examine how a COVID-19 infection influenced training modalities for endurance sportsmen compared to those not trai...

The practice of physical activity in a variable climate during the same competition is becoming more and more common due to climate change and increasingly frequent climate disturbances. The main aim of this pilot study was to understand the impact of cold ambient temperature on performance factors during a professional cycling race. Six profession...

The aim of this study was to test the effect of face cooling with cold water (1.2 ± 0.7°C) vs. face cooling with neutral water (28.0 ± 3.0°C) during high-intensity swimming training on both the core temperature (Tco) and thermal perceptions in internationally ranked long-distance swimmers (5 men’s and 3 women’s) during 2 randomized swimming session...

Olympic distance cross-country cycling (XCO) is a discipline subject to wide performance variability due to uncontrollable environmental factors such as altitude, ambient temperature and/or humidity. This study therefore aimed to investigate the impact of environmental factors on XCO performance in under-23 and elite female and male categories. Ind...

The objective of the present study was to evaluate the influence of exercise-induced hypoxemia (EIH) on muscle and cerebral oxygenation responses during maximal exercise in normoxia and in acute moderate hypoxia (fraction of inspired oxygen: 15.3%, 2 400 m). EIH was defined as a drop in hemoglobin saturation of at least 4% for at least three consec...

Optoelectronic plethysmography (OEP) is a noninvasive method for assessing lung volume variations and the contributions of different anatomical compartments of the chest wall (CW) through measurements of the motion of markers attached to the CW surface. The present study proposes a new method for analyzing the local CW kinematics from OEP measureme...

Because progressive respiratory muscle weakness leads to decreased chest-wall motion with eventual ribcage stiffening, the purpose was to compare vital capacity (VC) and contributions of chest-wall compartments before and after volume recruitment–derecruitment manoeuvres (VRDM) in Duchenne muscular dystrophy (DMD). We studied nine patients with DMD...

Optoelectronic plethysmography (OEP) is a noninvasive method for assessing lung volume variations and the contributions of different anatomical compartments of the chest wall (CW) through measurements of the motion of markers attached to the CW surface. The present study proposes a new method for analyzing the local CW kinematics from OEP measureme...

Plethysmography is an indispensable component of clinical lung function testing. However, lung volume measurement in the supine position using an optoelectronic system requires the placement of reflective markers on the anterior and lateral torso surface. The conventional method computes breath-by-breath changes in the volume between the markers an...

Late-onset Pompe disease, for which enzyme replacement therapy is available, induces progressive diaphragmatic weakness. Monitoring diaphragmatic function is therefore crucial but is hindered by the need to insert esophageal and gastric probes. Vital capacity (VC), inspiratory capacity, maximal inspiratory pressure, and sniff nasal pressure are non...

Purpose: Arterial blood gas measurement is frequently performed in critically ill patients to diagnose and monitor acute respiratory failure. At a given metabolic rate, carbon dioxide partial pressure (Paco2) is entirely determined by CO2 elimination through ventilation. Transcutaneous partial pressure of carbon dioxide (PtcCO2) monitoring permits...

Background: The objective was to determine whether optoelectronic plethysmography (OEP) can detect asymmetric ventilation related to unilateral or asymmetric diaphragmatic weakness, suggesting usefulness as a diagnostic tool. Methods: Thirteen patients with suspected asymmetric diaphragmatic weakness based on dyspnea and hemidiaphragm elevation...