A5102831357- Sports Performance and Training
- Exercise and Physiological Responses
- Muscle metabolism and nutrition
- Cardiovascular and exercise physiology
- Sports injuries and prevention
- Thermoregulation and physiological responses
- International Labor and Employment Law
- Heart Rate Variability and Autonomic Control
- Cardiovascular Effects of Exercise
- Labor Movements and Unions
- Stability and Control of Uncertain Systems
- Adipose Tissue and Metabolism
- Infrared Thermography in Medicine
- Multiculturalism, Politics, Migration, Gender
- Sleep and related disorders
- Diet and metabolism studies
- Fibromyalgia and Chronic Fatigue Syndrome Research
- Quantum chaos and dynamical systems
- Genetics and Physical Performance
- European Union Policy and Governance
- High Altitude and Hypoxia
- Physical Activity and Health
- Sport Psychology and Performance
- Advanced Control Systems Optimization
- Muscle activation and electromyography studies
Liverpool John Moores University
2016-2025
Institut National du Sport, de l'Expertise et de la Performance
2011-2024
Université de Strasbourg
2018-2022
Sociétés, Acteurs, Gouvernement en Europe
2017-2022
English Institute of Sport
2020-2022
Triangle : Action, Discours, Pensée politique et économique
2022
Université de Toulon
2009-2021
Centre Européen de Sociologie et de Science Politique
2021
Institut d'Etudes Politiques de Paris
2021
Inserm
2021
This study aimed to examine whether (i) objective markers of sleep quantity and quality are altered in endurance athletes experiencing overreaching response an overload training program (ii) potential reduced would be accompanied with a higher prevalence upper respiratory tract infections this population.Twenty-seven trained male triathletes were randomly assigned either (n = 18) or normal (CTL, n 9) groups. Respective programs included 1-wk moderate phase followed by 3-wk period training,...
We analyzed HR variability (HRV) to detect alterations in autonomic function that may be associated with functional overreaching (F-OR) endurance athletes.Twenty-one trained male triathletes were randomly assigned either intensified training (n = 13) or normal 8) groups during 5 wk. HRV measures taken daily a 1-wk moderate (baseline), 3-wk overload training, and taper.All the subjects of group demonstrated decrease maximal incremental running test performance at end period (-9.0% ± 2.1%...
Football is a global game which constantly evolving, showing substantial increases in physical and technical demands. Nutrition plays valuable integrated role optimising performance of elite players during training match-play, maintaining their overall health throughout the season. An evidence-based approach to nutrition emphasising, 'food first' philosophy (ie, food over supplements), fundamental ensure effective player support. This requires relevant scientific evidence be applied...
Deliberately training with reduced carbohydrate (CHO) availability to enhance endurance-training-induced metabolic adaptations of skeletal muscle (i.e. the 'train low, compete high' paradigm) is a hot topic within sport nutrition. Train-low studies involve periodically (e.g., 30-50% sessions) CHO availability, where train-low models include twice per day training, fasted post-exercise restriction and 'sleep train low'. When compared high data suggest that augmented cell signalling (73% 11...
Enhanced recovery following physical activity and exercise-induced muscle damage (EIMD) has become a priority for athletes. Consequently, number of post-exercise strategies are used, often without scientific evidence their benefits. Within this framework, the purpose study was to test efficacy whole body cryotherapy (WBC), far infrared (FIR) or passive (PAS) modalities in hastening muscular within 48 hours after simulated trail running race. In 3 non-adjoining weeks, 9 well-trained runners...
The objectives of the present investigation was to analyze effect two different recovery modalities on classical markers exercise-induced muscle damage (EIMD) and inflammation obtained after a simulated trail running race. Endurance trained males (n = 11) completed experimental trials separated by 1 month in randomized crossover design; one trial involved passive (PAS), other specific whole body cryotherapy (WBC) for 96 h post-exercise (repeated each day). For trial, subjects performed 48...
Purpose We investigated the effect of a chronic dietary periodization strategy on endurance performance in trained athletes. Methods Twenty-one triathletes (V˙O2max: 58.7 ± 5.7 mL·min−1·kg−1) were divided into two groups: “sleep-low” (SL) (n = 11) and control (CON) group 10) consumed same daily carbohydrate (CHO) intake (6 g·kg−1·d−1) but with different timing over day to manipulate CHO availability before after training sessions. The SL consisted 3-wk training–diet intervention comprising...
The purpose of this study is to examine whether performance supercompensation during taper maximized in endurance athletes after experiencing overreaching an overload training (OT) period.Thirty-three trained male triathletes were assigned either OT (n = 23) or normal groups 10, CTL) 8 wk. Cycling and maximal oxygen uptake (V˙O2max) measured 1 wk moderate training, a 3-wk period OT, then each week 4-wk taper.Eleven the 23 subjects from group diagnosed as functionally overreached (F-OR)...
The aim of this study was to compare the effects a single whole-body cryostimulation (WBC) and partial-body (PBC) (i.e., not exposing head cold) on indices parasympathetic activity blood catecholamines. Two groups 15 participants were assigned either 3-min WBC or PBC session, while 10 constituted control group (CON) receiving any cryostimulation. Changes in thermal, physiological subjective variables recorded before during 20-min after each According qualitative statistical analysis, an...
Elite athletes frequently undergo periods of intensified training (IT) within their normal program. These can lead into functional overreaching, characterized by high perceived fatigue, impaired sleep, and performance. Because whole-body cryostimulation (WBC) has been proven to be an effective recovery method in the short term (<76 h), we investigated whether daily WBC sessions during IT could prevent exercise sleep-related signs overreaching.After a week (BASE), 10 elite synchronized...
Key points Reduced carbohydrate (CHO) availability before and after exercise may augment endurance training‐induced adaptations of human skeletal muscle, as mediated via modulation cell signalling pathways. However, it is not known whether such responses are by CHO restriction, energy restriction or a combination both. In recovery from twice per day training protocol where muscle glycogen concentration maintained within 200–350 mmol kg −1 dry weight (dw), we demonstrate that acute...
Purpose The aim of the study was to investigate whether heart rate recovery (HRR) may represent an effective marker functional overreaching (f-OR) in endurance athletes. Methods and Results Thirty-one experienced male triathletes were tested (10 control 21 overload subjects) before (Pre), immediately after training period (Mid) a 2-week taper (Post). Physiological responses assessed during incremental cycling protocol exhaustion, including rate, catecholamine release blood lactate...
Functional overreaching (F-OR) induced by heavy load endurance training programs has been associated with reduced heart rate values both at rest and during exercise. Because this phenomenon may reflect an impairment of cardiac response, research was conducted to test hypothesis. Thirty-five experienced male triathletes were tested (11 control 24 overload subjects) before overloading (Pre), immediately after (Mid), a 2-wk taper period (Post). Physiological responses assessed incremental...
A predominance of parasympathetic drive is observed following cold exposure. Such modulation the autonomic nervous system (ANS) associated with faster post-exercise recovery. Within this context, whole-body cryotherapy (WBC) has been spreading in sport medicine, though optimal temperature and frequency are unclear. The aim study was to examine effects different conditions on sympathovagal balance.Forty healthy males were randomly assigned into five groups (- 110 °C, - 60 10 control [≃ 24...
Repeated sessions of eccentric-biased exercise promote strength gains through neuromuscular adaptation. However, it remains unclear whether increasing the number these can mitigate extent fatigue and exercise-induced muscle damage (EIMD) in response to a standardised bout. Twelve healthy untrained adults (five females seven males; 25.1 ± 4.9 years; V˙O2max$\dot{V}{\mathrm{O}}_{2\,\max }$ : 49.4 6.2 mL kg-1 min-1) completed two blocks five downhill running (DR) on motorised treadmill at speed...
The aim of this study was to analyze the physiologic demand pedaling on an electrically assisted bicycle test its potential as alternative method perform exercise.Twenty participants (ten trained vs. ten untrained in endurance) novice performed same cycling protocol composed nine 5-min submaximal periods without electrical support (NO), with a light (S1), or high (S4). conditions were tested at two different imposed speeds (16 and 21 km·hr(-1)) one freely chosen speed (mean [SD], 18.1 [0.7]...
This paper reports a novel electromag-5 netic sensor technique for real-time noninvasive monitoring 6 of blood lactate in human subjects.Methods: The 7 was demonstrated on 34 participants who undertook cy-8 cling regime, with rest period before and after, to produce 9 rising falling response curve.Sensors attached 10 the arm legs gathered spectral data, 11 samples were measured using Lactate Pro V2; tem-12 perature heart rate data also collected.Results: 13 Pointwise mutual information...
We examined the effects of graded muscle glycogen on exercise capacity and modulation skeletal signaling pathways associated with regulation mitochondrial biogenesis. In a repeated-measures design, eight men completed sleep-low, train-low model comprising an evening glycogen-depleting cycling protocol followed by exhaustive test [8 × 3 min at 80% peak power output (PPO), 1-min efforts PPO until exhaustion] subsequent morning. After exercise, subjects ingested total 0 g/kg (L-CHO), 3.6...
To investigate the effect of early evening exercise training at different intensities on nocturnal sleep and cardiac autonomic activity in endurance-trained runners.Eight runners completed three experimental trials a randomised, counterbalanced order. In (end 3.5 h before bedtime), participants performed either: (i) 1 high-intensity interval running session (HIGH, 6 × 5 min 90% VO2peak interspersed with recovery); (ii) low-intensity (LOW, 60 45% VO2peak) or (iii) no (CON). Subsequent was...
Punching in boxing requires a combination of force and velocity the acting arm, originating from an optimal synchronization different body segments. However, it is not well-understood what kinematic parameters punching execution influence performance most. This study aimed to investigate differences between 15 potential Olympic medalist boxers (Elite group) 8 younger well trained (Junior group). Each athlete was equipped with instrumented suit composed 17 inertial measurement units (IMU)...