Sébastien Racinais

ORCID: 0000-0003-0348-4744
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About
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Research Areas
  • Thermoregulation and physiological responses
  • Sports Performance and Training
  • Exercise and Physiological Responses
  • Climate Change and Health Impacts
  • Sports injuries and prevention
  • Cardiovascular and exercise physiology
  • Muscle activation and electromyography studies
  • Infrared Thermography in Medicine
  • High Altitude and Hypoxia
  • Heart Rate Variability and Autonomic Control
  • Lower Extremity Biomechanics and Pathologies
  • Muscle metabolism and nutrition
  • Cardiovascular Effects of Exercise
  • Winter Sports Injuries and Performance
  • Thermal Regulation in Medicine
  • Body Composition Measurement Techniques
  • Vitamin D Research Studies
  • Physical Activity and Health
  • Bone health and osteoporosis research
  • Sports Dynamics and Biomechanics
  • Cerebral Palsy and Movement Disorders
  • Diabetic Foot Ulcer Assessment and Management
  • Psychosomatic Disorders and Their Treatments
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Motor Control and Adaptation

Université de Montpellier
2006-2025

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2024-2025

Laboratoire Interuniversitaire de Biologie de la Motricité
2025

Université Claude Bernard Lyon 1
2015-2025

Qatar Orthopaedic and Sports Medicine Hospital
2015-2024

Dynamique Musculaire et Métabolisme
2024

Institut National du Sport, de l'Expertise et de la Performance
2017-2024

GTx (United States)
2023

International Olympic Committee
2020

Liverpool John Moores University
2020

Exercising in the heat induces thermoregulatory and other physiological strain that can lead to impairments endurance exercise capacity. The purpose of this consensus statement is provide up-to-date recommendations optimise performance during sporting activities undertaken hot ambient conditions. most important intervention one adopt reduce acclimatise. Heat acclimatisation should comprise repeated exercise-heat exposures over 1–2 weeks. In addition, athletes initiate competition training a...

10.1136/bjsports-2015-094915 article EN cc-by-nc British Journal of Sports Medicine 2015-06-11

The human foot is characterized by a pronounced longitudinal arch (LA) that compresses and recoils in response to external load during locomotion, allowing for storage return of elastic energy within the passive structures contributing metabolic savings. Here, we examine potential active muscular contribution biomechanics deformation recoil. We test hypotheses activation three largest plantar intrinsic muscles, abductor hallucis, flexor digitorum quadratus plantae associated with muscle...

10.1098/rsif.2013.1188 article EN Journal of The Royal Society Interface 2014-01-29

To examine the impact of hot ambient conditions on physical performance and physiological responses during football match-play.

10.1371/journal.pone.0039202 article EN cc-by PLoS ONE 2012-06-19

The aims of this study were to determine (i) the effect passive hyperthermia on motor drive and cognitive function, (ii) whether head cooling can limit hyperthermia-induced alterations. Sixteen subjects randomly exposed for 2 h three different conditions: control (Con, 20 degrees C), hot (Hot, 50 C) cool (HHC--where cold packs applied under Hot conditions). Three tests measuring attention two memory performed. Neuromuscular testing included electrically evoked muscle action potentials...

10.1113/jphysiol.2008.157420 article EN other-oa The Journal of Physiology 2008-08-15

The objectives of this study were to (1) assess the effect passive heating upon attention and memory task performance, (2) evaluate effectiveness application cold packs head on preserving these functions. Using a counter-balance design 16 subjects underwent three trials: control (CON, 20°C, 40% rH), hot (HOT, 50°C, 50% rH) with kept cool (HHC). In each condition, tests two performed. Mean core, forehead tympanic temperatures all significantly higher (p < 0.05) during HOT (38.6° ± 0.1°, 39.6°...

10.3109/02656736.2010.516305 article EN International Journal of Hyperthermia 2010-11-11

Challenging environmental conditions, including heat and humidity, cold, altitude, pose particular risks to the health of Olympic other high-level athletes. As a further commitment athlete safety, International Committee (IOC) Medical Commission convened panel experts review scientific evidence base, reach consensus, underscore practical safety guidelines new research priorities regarding unique challenges international-level athletes face. For non-aquatic events, external thermal load is...

10.1136/bjsports-2012-091296 article EN British Journal of Sports Medicine 2012-06-09

Exercising in the heat induces thermoregulatory and other physiological strain that can lead to impairments endurance exercise capacity. The purpose of this consensus statement is provide up‐to‐date recommendations optimize performance during sporting activities undertaken hot ambient conditions. most important intervention one adopt reduce acclimatize. Heat acclimatization should comprise repeated exercise‐heat exposures over 1–2 weeks. In addition, athletes initiate competition training a...

10.1111/sms.12467 article EN Scandinavian Journal of Medicine and Science in Sports 2015-05-06

To investigate muscle deoxygenation and neural drive-related changes during repeated cycling sprints in a fatiguing context.Nine healthy male subjects performed repeated-sprint test (consisting of 10 x 6-s maximal interspaced by 30 s recovery). Oxygen uptake was measured breath-by-breath; the vastus lateralis assessed continuously using near-infrared spectroscopy technique. Surface electromyograms (RMS) both biceps femoris were also recorded. Furthermore, before after test, percentage...

10.1249/01.mss.0000251775.46460.cb article EN Medicine & Science in Sports & Exercise 2007-02-01

Purpose This study aimed to determine the effects of heat acclimatization on performance and pacing during outdoor cycling time trials (TT, 43.4 km) in heat. Methods Nine cyclists performed three TT hot ambient conditions (TTH, approximately 37°C) first (TTH-1), sixth (TTH-2), 14th (TTH-3) days training Data were compared with average two cool condition (approximately 8°C) before after (TTC). Results TTH-1 (77 ± 6 min) was slower (P = 0.001) than TTH-2 (69 5 min), both < 0.01) TTC TTH-3 (66...

10.1249/mss.0000000000000428 article EN cc-by-nc-nd Medicine & Science in Sports & Exercise 2014-06-29

The 2014 FIFA World Cup Brazil included 64 matches in temperate to tropical environmental conditions. We analysed performance data relation the conditions identify potential association.Wet-bulb globe temperature (WBGT) parameters were obtained at centre of field 1 h before start play. Environmental stress was estimated (low, moderate and high) for each match using WBGT relative humidity. Various physical technical indices recorded during (average both teams).Over matches, 28 played under...

10.1136/bjsports-2014-094449 article EN cc-by-nc British Journal of Sports Medicine 2015-02-17

The aim of the present study was to examine associations between adaptive responses an in‐season soccer training camp in heat and changes submaximal exercising heart rate ( HRex , 5‐min run at 9 km/h), postexercise HR recovery HRR ) variability HRV ). Fifteen well‐trained but non‐heat‐acclimatized male adult players performed a week Q atar (34.6 ± 1.9°C wet bulb globe temperature). (i.e. standard deviation instantaneous beat‐to‐beat R – interval measured from P oincaré plots SD 1,...

10.1111/j.1600-0838.2011.01378.x article EN Scandinavian Journal of Medicine and Science in Sports 2011-08-09

To identify the relationship between field performance in a hot environment and individual heat acclimatisation responses football players.Nineteen semiprofessional players completed match 21°C followed by 6 days of dry (38-43°C, 12-30% relative humidity) ~43°C. A heat-response test (30 min walk+30 seated; 44°C) was performed at beginning end period.The period increased sweat rate 34% during standard heat-exposure reduced sodium concentration 18% (both p≤0.005). Plasma volume changes showed...

10.1136/bjsports-2012-091227 article EN British Journal of Sports Medicine 2012-07-14

Here, we studied muscle-specific and muscle-related miRNAs in plasma of exercising humans. Our aim was to determine whether they are affected by eccentric and/or concentric exercise modes could be biomarkers muscle injuries or possible signaling molecules. On two separate days, nine healthy subjects randomly performed 30-min walking exercises, one downhill (high component) uphill component). Perceived exertion heart rate were higher during the exercise, while subjective pain ankle plantar...

10.1152/japplphysiol.00075.2013 article EN Journal of Applied Physiology 2013-08-16

To characterise the core temperature response and power output profile of elite male female cyclists during 2016 UCI Road World Championships. This may contribute to formulating environmental heat stress policies.Core was recorded via an ingestible capsule in 10, 15 team time trial (TTT), individual (ITT) road race (RR), respectively. Power heart rate were extracted from cycling computers. Ambient conditions direct sunlight hot (37°C±3°C) but dry (25%±16% relative humidity), corresponding a...

10.1136/bjsports-2018-099881 article EN British Journal of Sports Medicine 2018-12-01

Assess exertional heat illness (EHI) history and preparedness in athletes competing a World Athletics Championships under hot/humid conditions identify the factors associated with strategies.Of 207 registered national teams invited to participate study, 50 (24%) accepted. The 957 (49% of all 1965 registered) these were complete precompetition questionnaire evaluating EHI history, stress prevention (heat acclimatisation, precooling hydration) recovery. Responses from 307 (32%) separated field...

10.1136/bjsports-2016-096579 article EN cc-by-nc British Journal of Sports Medicine 2016-11-04

This document presents the recommendations developed by IOC Medical and Scientific Commission several international federations (IF) on protection of athletes competing in heat. It is based a working group, meetings, field experience Delphi process. The first section for event organisers to monitor environmental conditions before during an event; provide sufficient ice, shading cooling; work with IF remove regulatory logistical limitations. second summarises that are directly associated...

10.1136/bjsports-2022-105942 article EN cc-by-nc British Journal of Sports Medicine 2022-09-23
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