Alexandre Guimard

ORCID: 0000-0002-0411-1467
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About
Contact & Profiles
Research Areas
  • Cardiovascular and exercise physiology
  • Sports Performance and Training
  • Cardiovascular and Diving-Related Complications
  • Obstructive Sleep Apnea Research
  • Heart Rate Variability and Autonomic Control
  • Architecture, Modernity, and Design
  • Sports injuries and prevention
  • Urban Design and Spatial Analysis
  • Architecture and Cultural Influences
  • Cardiovascular Syncope and Autonomic Disorders
  • Transportation and Mobility Innovations
  • Sports Dynamics and Biomechanics
  • Lower Extremity Biomechanics and Pathologies
  • Non-Invasive Vital Sign Monitoring
  • Sleep and related disorders
  • Regional Economics and Spatial Analysis
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Stress Responses and Cortisol
  • ICT Impact and Policies
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Exercise and Physiological Responses
  • Hormonal and reproductive studies
  • Regulation of Appetite and Obesity
  • Sleep and Wakefulness Research
  • Injury Epidemiology and Prevention

Complexité, Innovation et Activités Motrices et Sportives
2013-2024

Université Paris-Saclay
2017-2024

Sorbonne Université
2021-2024

Université Sorbonne Paris Nord
2021-2024

Université d'Orléans
2013-2024

Inserm
2021-2023

Université Paris-Sud
2013-2019

Centre de Recherche en Économie et Management
2016

École Normale Supérieure Paris-Saclay
2014

Purpose: Exogenous melatonin has been proven to have beneficial effects on sleep. A good sleep quality promotes recovery and improves physical performance. In this sense, the present study aimed explore potential effect of nocturnal ingestion psycho-cognitive short-term maximal performances, in following morning. Method: Twelve professional soccer players (22.9 ± 1.3 years, 1.80 0.05 m, 72.0 8.8 kg) volunteered perform two separate testing sessions after either or placebo ingestion. The next...

10.1080/02701367.2024.2303457 article EN Research Quarterly for Exercise and Sport 2024-02-08

Despite changes in the underwater sections of swimming races affecting overall performance, there is no information about effects apnea-induced on physiological state competitive swimmers. The aim present research was to examine effect race [blood lactate concentration, heart rate, and rating perceived exertion (RPE)] biomechanical (underwater time, distance, velocity) parameters Twelve youth swimmers belonging national team (706 ± 28.9 FINA points) performed 2 × 75 m efforts under three...

10.3389/fphys.2022.815766 article EN cc-by Frontiers in Physiology 2022-01-26

Although cold water immersion (CWI) is one of the most widely used post-exercise strategies to accelerate recovery processes, benefits CWI may be associated with placebo effects. This study aimed compare effects and interventions on time course after Loughborough Intermittent Shuttle Test (LIST). In a randomized, counterbalanced, crossover study, twelve semi-professional soccer players (age 21.1 ± 2.2 years, body mass 72.4 5.9 kg, height 174.9 4.6 cm, V˙ O2max 56.1 2.3 mL/min/kg) completed...

10.3389/fphys.2023.1062398 article EN cc-by Frontiers in Physiology 2023-02-21

Competitive swimmers regularly perform apnea series with or without fins as part of their training, but the ergogenic and metabolic repercussions acute chronic have not been examined. Therefore, we aimed to investigate cardiovascular, lactate, arterial oxygen saturation hormonal responses in relation performance male swimmers. According a randomized protocol, 15 national regional competitive were monitored while performing four 100-m freestyle trials, each consisting 25-m segments departure...

10.1519/jsc.0000000000000254 article EN The Journal of Strength and Conditioning Research 2013-10-08

Although the role of underwater phases is well-known, no study has taken an interest in describing and quantifying distance time spent apnea as a condition for optimal performance. This aimed to investigate impact surface parameters on swimming performance elite swimmers. The performances 79 swimmers 100-m freestyle were analyzed (short-course). spatiotemporal three groups have been recorded: finalists 2018 World Swimming Championships (WORLD), French who reached 100 m under 50 s at National...

10.3389/fphys.2021.712652 article EN cc-by Frontiers in Physiology 2021-09-01

The aim of this study was to determine the influence swim intensity on acute responses dynamic apnoea. 9 swimmers performed one 50 m front crawl trial in four different conditions: at 400 velocity (V400) with normal breathing (NB), V400 complete apnoea (Ap), maximal (Vmax) NB and Vmax Ap. Peak heart rate (HRpeak), blood lactate concentration after exercise (Lacpost ex) Borg rating perceived exertion (RPE) were measured. Arterial oxygen saturation (SpO2) monitored a pulse oximeter forehead...

10.1080/02640414.2017.1349328 article EN Journal of Sports Sciences 2017-07-06

The aim was to assess the cardiac, arterial oxygen saturation, lactate, hormonal and Borg rating of perceived exertion (RPE) responses acute apnea in relation capacity 18 middle-aged triathletes. Subjects were monitored while swimming two 50-m freestyle exercise trials with fins at maximal speed: normal frequency breathing (NB) complete (Ap); latter used capacity. subjects significant alteration performance inducing a time increase greater than 2.5% during Ap vs. NB put group: bad (Bad Ap);...

10.1055/s-0043-101375 article EN International Journal of Sports Medicine 2017-05-17

It is well known that the duration of apnea longer in static than dynamic conditions, but impact exercise intensity on needs to be investigated. The aim this study was determine relationship between and intensity, associated metabolic parameters. Ten healthy active young non-apnea trained (NAT) men participated study. During first visit, they carried out a maximum (SA) maximal progressive cycle evaluate power output achieved at peak oxygen uptake (PVO2peak). second performed four randomized...

10.3389/fphys.2021.815824 article EN cc-by Frontiers in Physiology 2022-01-25

Paddles and fins are used in swimmers training with different objectives (e.g., increase propulsive areas of hands feet, improve the feeling water flow). These artificial modifications stroke might be viewed as external constraints task, both will either disturb or facilitate swimming modalities, so coaches should manipulate its use to extract benefits for performance. This study seeks investigate precise effects wearing paddles (PAD) (FINS) vs. a no-equipment (NE) trial three all-out front...

10.3389/fphys.2023.1174090 article EN cc-by Frontiers in Physiology 2023-05-22
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