Bastien Bontemps

Université Côte d'Azur · Faculté des Sciences du Sport (STAPS)

The present study compared neuromuscular fatigue profiles between children, untrained adults and adult endurance athletes during repeated maximal muscle contractions. Eighteen prepubertal boys, 19 untrained men and 13 endurance male athletes performed 5-s maximal voluntary isometric knee extensor contractions (MVICs) interspersed with 5-s recovery...

DOI: 10.1152/japplphysiol.00496.2019

Purpose: This study assessed the cardiorespiratory capacity and running economy (RE) of a 59-yr-old ex-Olympian athlete who ran a marathon in 2:30:15 in 2019. The athlete retired from running at 32 yr old (best marathon performance: 2:13:59) for a 16-yr period after his participation at the Olympics. Methods: Heart rate (HR), oxygen uptake (V˙O2...

The aim of this study was to examine the physiological profiles and the pacing strategies of the father (59 years old) and son (34 years old) who broke the World record time (4:59:22; father : 2:27:52, son : 2:31:30) for combined father and son marathon in 2019. Oxygen uptake (VO 2 ), heart rate (HR), ventilation (VE), blood lactate concentration (...

Downhill running (DR) is a whole-body exercise model that is used to investigate the physiological consequences of eccentric muscle actions and/or exercise-induced muscle damage (EIMD). In a sporting context, DR sections can be part of running disciplines (of-road and road running) and can accentuate EIMD, leading to a reduction in performance. The...

Purpose: Repeated sessions of eccentric-biased exercise promote strength gains through neuromuscular adaptation. However, it remains unclear whether increasing the number of these sessions can mitigate the extent of neuromuscular fatigue and exercise-induced muscle damage (EIMD) in response to a standardised eccentric-biased exercise bout. Method...

Background Neuromuscular function is considered as a determinant factor of endurance performance during adulthood. However, whether endurance training triggers further neuromuscular adaptations exceeding those of growth and maturation alone over the rapid adolescent growth period is yet to be determined. Objective The present study investigated th...

Oral presentation of the 28th annual congress of ECSS. Research on the effects of asssitance and unilaterality during various modes of Nordic Hamstring Exercise. Measures of hamstrings' eccentric torques and posterior muscle chain activity.

It is unclear if human tendon adapts to moderate-intensity, high-volume chronic eccentric exercise, e.g. downhill running (DR) training. This study aimed to investigate the time course of patellar tendon (PT) adaptation to short-term DR training, and to determine if changes in PT properties were related to changes in mechanical stress and/or loadin...

Purpose: The aim of this study was to investigate the time course of maximal isometric finger flexor force and blood acid-base balance during repeated simulated matches in world-class judokas. Methods: Seven 21- to 28-year-old world-class female judokas (including Olympic and World Championship medalists) repeated four 4-minute judo combats inte...

La survenue d’altérations neuromusculaires et musculo tendineuses lors d’épreuves de course à pied de fond s’avère être délétère sur la capacité de performance d’endurance et la période de récupération des athlètes. Par ailleurs, la sévérité de ces perturbations peut être exacerbée par les caractéristiques du terrain, et plus particulièrement par l...

Purpose Due to its eccentric nature, downhill running (DR) training has been suggested to promote strength gains through neuromuscular adaptations. However, it is unknown whether short-term chronic DR can elicit such adaptations. Methods Twelve untrained, young, healthy adults (5 women, 7 men) took part in 4 weeks’ DR, comprising 10 sessions, with...

Background Thanks to the specific materials they embed, far infrared (FIR)-emitting garments can interact with the body’s physiological functions. Such effects have been sought in medicine and physiotherapy for a long time for the treatment/relief of a variety of pathologies and disabling conditions. Recently, FIR-emitting garments have been introd...

The aim of the present study was to check whether the M‐wave and H‐reflex recruitment curves differ between prepubertal boys and men. Eleven boys (9‐11 yr) and eleven men (18‐35 yr) were magnetically stimulated at the tibial nerve in a prone position. M‐wave and H‐reflex maximal amplitudes (Hmax; Mmax; Hmax/Mmax), thresholds, regression slopes (Hsl...

Are you looking for a training buddy to prepare for your next marathon race? Have you ever considered that your father could be the right person? Would not it be great to cross the finish line side by side and get on the podium together? You probably think that your father is not young enough for such an effort, do not you? We believe that your fat...

In their Viewpoint, Joyner et al. (2) proposed that a convergence of factors (physiology, training, technology, and logistics) may explain the recent swift improvement in marathon times. While we agree on the importance of these factors and we acknowledge previous research in elite marathon runners, we believe that masters athletes can add to the d...

Purpose The twofold purpose of this study was (1) to compare differences in development and etiology of neuromuscular fatigue at different plantar flexor (PF) muscle-tendon unit (MTU) lengths between boys and men, and (2) to examine the relationship between musculotendinous stiffness and peripheral fatigue. Methods Nineteen pre-pubertal boys and 2...

Retraining and resuming competition following surgery is challenging for athletes due to the prolonged period of reduced physical activity and subsequent alteration in body composition and physical performance. This is even more challenging for master athletes who endure the additional effect of aging. Within this context, the purpose of this study...

The purpose of this case study was to evaluate the benefits that evidence-based nutritional and training recommendations could have on the time course of reconditioning following hip arthroplasty in a competitive master triathlete. Methods: During 38 weeks (from 6 weeks prior to surgery through to the return to competition), the athlete was provide...

The aim of this study was to compare voluntary activation (VA) and motor units (MU) recruitment patterns between boys and men at different contraction levels of the knee extensor muscles. We hypothesized that boys and men would display similar VA and MU recruitment patterns at low submaximal force levels, but that boys would display a lower utiliza...

Purpose The purpose of this study was to compare the development and etiology of neuromuscular fatigue of the knee extensor muscles (KE) at different muscle-tendon unit (MTU) lengths during repeated maximal voluntary isometric contractions (MVIC) between boys and men.Methods Twenty-two pre-pubertal boys (9-11 years) and 22 men (18-30 years) perform...

Purpose The purpose of this study was to compare the development and etiology of neuromuscular fatigue of the knee extensor muscles (KE) at different muscle-tendon unit (MTU) lengths during repeated maximal voluntary isometric contractions (MVIC) between boys and men. Methods Twenty-two pre-pubertal boys (9-11 years) and 22 men (18-30 years) perfo...

The aim of this study was to compare the development and etiology of neuromuscular fatigue of the knee extensor (KE) and plantar flexor (PF) muscles during repeated maximal voluntary isometric contractions (MVIC) between children and adults. Twenty-one prepubertal boys (9-11 years) and 24 men (18-30 years) performed two fatigue protocols consisting...

To compare the development and etiology of neuromuscular fatigue between prepubertal boys, well-trained adult endurance athletes, and untrained men during repeated isometric MVC of the knee extensors.