Time course of biochemical variables and comparisons between internal and external load responses in tethered swimming
Publication date: Available online 25 July 2019Source: Science & SportsAuthor(s): J.P. Loures, C.A.K. Filho, E.Z. Campos, M. Papoti (Source: Science and Sports)
Source: Science and Sports - July 26, 2019 Category: Sports Medicine Source Type: research
Le Judo : un sport pour tous
Publication date: Available online 18 July 2019Source: Science & SportsAuthor(s): R. Rousseau, L. Chiquet, F. Deviere, J. Jouffriault, S. Menard, L. Winkler, A. Frey, B. VesselleRésuméLes auteurs évoquent l’histoire du judo créé par Jigoro Kano et de la Fédération Française de Judo créée en 1946. Ils développent d’abord l’aspect du judo de compétition. Ils décrivent les qualités physiologiques du judoka compétiteur, la spécificité de ce sport dans lequel les compétitions sont effectuées en fonction des catégories de poids des pratiquants. Ensuite, l’épidémiologie de sa traumatologie et les tec...
Source: Science and Sports - July 19, 2019 Category: Sports Medicine Source Type: research
Suivi des troubles métaboliques induits par un ultra trail pendant 28 jours
ConclusionLe taux de sélénium diminue significativement après un ultra trail et ce taux reste abaissé jusqu’à 28 jours après l’arrivée. Les autres perturbations biologiques observées sont plus transitoires.SummaryObjectivesThe aim of this work was to assess the biologic impact of an ultra marathon race during a 28 days period. The main objective was the measurement in serum Selenium levels changes, secondary objectives were the study of in zinc, vitamin B12, blood ionogram, and marker elements of inflammation changes for 28 days.Materials and method We conducted our study in runners of a 170 km ultr...
Source: Science and Sports - July 13, 2019 Category: Sports Medicine Source Type: research
A multifaceted exercise intervention did not alter cognitive function and cerebral perfusion in individuals with Parkinson's disease
Publication date: Available online 13 July 2019Source: Science & SportsAuthor(s): B.S. Pollock, C.A. Peacock, E.J. Ryan, M.B. Spitznagel, A.L. RidgelSummaryObjectivesTo investigate cerebral perfusion as a potential mechanism of exercise-related cognitive improvements and to further associate cognition and cerebral perfusion in Parkinson's disease.Equipment and methodsCerebral perfusion was measured continuously at rest and during a cognitive task using near-infrared spectroscopy before and after a multifaceted exercise program in thirteen individuals with Parkinson's disease.ResultsCognitive function was not significantly ...
Source: Science and Sports - July 13, 2019 Category: Sports Medicine Source Type: research
Wound healing acceleration in inflammation phase of post-tooth extraction after aerobic and anaerobic exercise
ConclusionThis study represents significant differences in the number of PMN and macrophage cells between aerobic and anaerobic exercises in wound healing after tooth extraction which can be a strong indicator of wound healing acceleration in the inflammatory phase.RésuméContexteL’extraction de dents entraîne la cicatrisation d’une plaie qui devrait être guérie physiologiquement dans un court laps de temps. Il a été prouvé scientifiquement que les exercices physiques aérobies et anaérobies améliorent diverses fonctions biologiques et accélèrent la cicatrisation de la plaie dans la muqueuse buccale. L’exe...
Source: Science and Sports - July 13, 2019 Category: Sports Medicine Source Type: research
Analyse d’articles
Publication date: Available online 10 July 2019Source: Science & SportsAuthor(s): (Source: Science and Sports)
Source: Science and Sports - July 11, 2019 Category: Sports Medicine Source Type: research
Are resistance training systems necessary to avoid a stagnation and maximize the gains muscle strength and hypertrophy?
Publication date: Available online 5 July 2019Source: Science & SportsAuthor(s): V. Angleri, C. Ugrinowitsch, C.A. LibardiSummaryTo optimize/maximize increases on muscle strength and mass in well resistance-trained individuals, the use of resistancetraining (RT) systems have been widely recommended by powerlifters, bodybuilders and coaches. These systems may be characterized as advanced techniques that manipulate specific RT variables emphasizing physiologic mechanisms. However, there is a lack of evidence on literature supporting the advantages of RT systems on muscle strength and mass increases compared with traditional ...
Source: Science and Sports - July 5, 2019 Category: Sports Medicine Source Type: research
Influence of resistance training and herbal supplementation on plasma apelin and metabolic syndrome risk factors in postmenopausal women
ConclusionThese results suggest that circuit resistance training augments plasma apelin and decreases both insulin and blood glucose. However, Zataria multiflora has no independent effect on apelin but does decrease blood glucose which is likely to be to some extent synergistic with training effects.RésuméObjectifLa ménopause est une situation physiologique qui affecte toutes les femmes autour de la cinquantaine. Le but de cette étude était d’évaluer les effets d’un entraînement en résistance de type « circuit training » avec supplémentation orale en Zataria multiflora (Avishan-e-Shirazi) sur l’apeline p...
Source: Science and Sports - July 5, 2019 Category: Sports Medicine Source Type: research
Effect of weight-control practices of high-level female judokas over competition period on body composition and factors of performance
ConclusionIn this study carried out on elite female judoka, changes in body composition and total energy intake had no effect on muscle performance and did not cause eating disorders.RésuméObjectif Cette étude a pour but d’évaluer l’effet d’une restriction alimentaire sur la composition corporelle, des facteurs de performance et le comportement alimentaire chez des judokates de haut niveau en période de compétition.MéthodesTreize judokates d’élite sont divisées en 2 groupes, le groupe D (n = 6) qui suit un régime et le groupe ND (n = 7) qui n’en suit pas. Le comportement alimentaire...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
Science of sleep and sports performance – a scoping review
ConclusionSleep quality and intensity shall be borne in mind in coaching athletes before, during and after the competitions. The sleep education should be part of coaches, psychologist and team manager's training for behavior modification and fruitful team performance.RésuméObjectifLe sommeil est une activité biologique fondamentale de l’homme. Le sommeil est vital pour la récupération, permettant de reconstituer les réserves d’énergie utilisées au cours des activités fonctionnelles quotidiennes. Le sport détermine une dépense en énergie supérieure à celle des activités quotidiennes. On pourrait donc sup...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
Training modalities and self-medication behaviors in a sample of runners during an ultratrail
ConclusionWe evidence some factors that seem to be associated with an improved performance: low age, low BMI, high years of practice, high weekly hours and club membership. Contrary to popular belief among runners, performance seems not or only slightly improved by intake or medication before, during or after the race (sports cake, multi-vitamin complex, BCAA, paracetamol, NSAID, beta-2-mimetics, etc.). Some of these relationships may exist and may not be clearly perceived by athletes. However, such results can help practitioners communicate with more confidence about the risks of certain supplements and NSAIDs compared to...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
Is low frequency and volume sports training beneficial to bone density in female adolescents?
ConclusionEngagement in low frequency and volume sport practice, may provide beneficial effects for bone health among adolescent females.RésuméObjectifsExaminer si la pratique sportive à basse fréquence a des effets bénéfiques sur la densité minérale osseuse (DMO) chez les adolescentes.Matériel et méthodesCette étude transversale a recruté des filles âgées de 13 à 17 ans dans deux écoles au Brésil. Les participants du groupe témoin n’ont pu participer à aucune activité physique régulière au cours des six mois précédents, à l’exception des cours réguliers d’éducation physique. Les particip...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
The combinatory effects of combined training (endurance–resistance) and garlic supplementation on oxidative stress and antioxidant adaptations in untrained boys
Conclusionthe present research suggests that resistance and endurance training synergistically improve the defense against oxidative stress, and that this effect is even enhanced by garlic antioxidant supplement.RésuméContexte et objectifLe sport et les activités physiques forment un moyen utile et efficace pour la prévention, le traitement et la réhabilitation d’un grand nombre des maladies et désordres de santé ; ils sont même conseillés en amont de la prescription des méthodes médicales avancées. La présente recherche a pour but d’étudier l’effet des exercices combinés (de résistance et d’endura...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
Do sex and body structure influence spatiotemporal step characteristics in endurance runners?
In conclusion, at a given running velocity, differences in body proportions seem to determine CT in amateur endurance runners, with higher values reported in taller and heavier runners. Nevertheless, although does exist a relationship between anthropometric characteristics and spatiotemporal parameters during running, the role of the somatic parameters measured in this study does not seem to be determinant in the spatiotemporal characteristics of amateur endurance runners.RésuméObjectifsExaminer l’influence du sexe et des caractéristiques anthropométriques des athlètes d’endurance formés à la récréation sur le...
Source: Science and Sports - June 26, 2019 Category: Sports Medicine Source Type: research
Postural dıfferences between professıonal soccer players and sedentary populatıon
ConclusionThis study indicated that posture of soccer players is better than that of sedentary population. Physical activity may contribute postural alignment in terms of trunk posture in sedentary population.RésuméObjectifLes déficiences posturales peuvent augmenter le risque de blessure chez les footballeurs. Un exercice physique régulier peut améliorer l’alignement postural. Le but de cette étude était d’étudier les différences posturales entre les footballeurs et la population sédentaire.MéthodesQuarante-neuf footballeurs professionnels (âge moyen 20,67 ± 2,83 ; 49 hommes) et 51 témoins s...
Source: Science and Sports - June 25, 2019 Category: Sports Medicine Source Type: research
