Search results for "Orthopedics"

Privation de sommeil, syndrome dʼapnées obstructives du sommeil et obésité de lʼadolescent : place des APA dans la prévention et le traitement de ces…

2018

De par la modification du mode de vie, le rythme veille-sommeil est négligé, et le manque de sommeil est devenu aujourdʼhui une préoccupation majeure de santé publique. Chez les jeunes, lʼutilisation inadaptée des écrans le soir et la nuit chez les jeunes est à lʼorigine dʼun retard de phase et dʼune restriction de sommeil. Bien que la relation réciproque entre obésité et privation de sommeil soit déjà reconnue, il est important de comprendre les mécanismes (comportementaux, endocriniens…) conduisant lʼadolescent à une augmentation de la masse corporelle. Par ailleurs, lʼobésité est associée à une modification de lʼarchitecture du sommeil et au développement du syndrome dʼapnées obstructive…

Évaluation du taux de blessures chez les pratiquants de CrossFit en France

2020

Introduction Le CrossFit s’est rapidement developpe en France depuis 2012, avec actuellement plus de 230 salles affiliees. Il s’agit d’un sport a part entiere visant a optimiser la condition physique mais c’est aussi une methode de preparation physique pouvant entrer dans le cadre d’un entrainement pour une autre discipline. La reputation de ce sport dans l’opinion est d’etre traumatisant sur le plan physique. L’objectif de cette etude etait de determiner en France le taux de blessures pour 1000 heures d’entrainement et de le comparer a ceux d’autres sports. Methode Toutes les salles affiliees CrossFit de France metropolitaine ouvertes depuis au moins 1 mois au premier octobre 2015 ont ete …

Social integration of Ethiopian and Eritrean women in Switzerland through informal sport settings

2021

This study investigated the role of informal sport settings (i.e. self-organised and non-voluntary sports clubs) in the social integration of Ethiopian and Eritrean women into Swiss society. Social integration seen as a multidimensional, interdependent process between the interaction of social bond, bridge and links; and two-way interaction between the migrant and local community. Thematic analysis of semi-structured interviews and focus group discussions (n���=���12, 18���51���years old) was used to understand the interplay between social integration and participation in informal sport settings. The findings indicated that such settings have become a crucial sphere for establishing and reb…

Meridianos tendinomusculares (Jīng Jīn) y tejido fascial, comparativa anatómica y funcional

2016

The description of the pathways of the Jīng Jīn meridians is based on empirical observations carried out more than 2000 years ago, and though historical records have shown their possible anatomical basis, nowadays these energetic pathways lack a solid scientific base from the biomedical standpoint. Nonetheless, the comparison between the pathways and function of the Jīng Jīn with the new insights regarding contributions to anatomy and physiology of the fascial system brought from western medicine allows for meeting points and closer relations between the two areas of knowledge. Physiologically, both the Jīng Jīn and the fascial system participate in common structural, biomechanical, integra…

Telomere Length, SIRT1, and Insulin in Male Master Athletes: The Path to Healthy Longevity?

2021

AbstractLower SIRT1 and insulin resistance are associated with accelerated telomere shortening. This study investigated whether the lifestyle of master athletes can attenuate these age-related changes and thereby slow aging. We compared insulin, SIRT1, and telomere length in highly trained male master athletes (n=52; aged 49.9±7.2 yrs) and age-matched non-athletes (n=19; aged 47.3±8.9 yrs). This is a cross-sectional study, in which all data were collected in one visit. Overnight fasted SIRT1 and insulin levels in whole blood were assessed using commercial kits. Relative telomere length was determined in leukocytes through qPCR analyses. Master athletes had higher SIRT1, lower insulin, and l…

Sportomics in professional soccer players: metabolomics results during preseason.

2021

BACKGROUND Sportomics is the application of metabolomics to study the metabolism shifts of individuals that practice sports or do physical exercise. This aim was reached by the analysis of low molecular weight metabolites (<1.5 kDa) present in biological fluids such as blood, saliva or urine. METHODS In this study, authors performed a 1H-NMR analysis of urine from 21 professional soccer players collected at 3 different time points during the preseason preparation period before the beginning of Serie A Championship (first division) in Italy. RESULTS Urine profile changed during the observational period. In particular, significant variations were observed for trimethylamine-N-oxide, dimethyla…

2020

BACKGROUND Women experience drastic hormonal changes during midlife due to the menopausal transition. Menopausal hormonal changes are known to lead to bone loss and potentially also to loss of lean mass. The loss of muscle and bone tissue coincide due to the functional relationship and interaction between these tissues. If and how physical activity counteracts deterioration in muscle and bone during the menopausal transition remains partly unresolved. This study investigated differences between premenopausal, early perimenopausal, late perimenopausal, and postmenopausal women in appendicular lean mass (ALM), appendicular lean mass index (ALMI), femoral neck bone mineral density (BMD) and T …

Serratus anterior contraction during resisted arm extension (GravityFit) assessed by MRI

2019

Background: Scapular stabilization is a common focus of shoulder rehabilitation. Objective: Examine contraction of serratus anterior during a bilateral arm extension exercise with axial compression using an exercise device (GravityFit) by magnetic resonance imaging (MRI). Methods: MRI was performed under two conditions: rest and static arm extension with axial compression. Load was set at 20% of age, sex and weight estimated bench press one-repetition maximum. A T2-weighted sequence was used to collect 14 axial images of the upper thoracic spine and shoulder bilaterally. Mean muscle length and thickness were calculated for the whole muscle and in equidistant subregions of the muscle in its …

Low-energy extracorporeal shockwave therapy (ESWT) improves metaphyseal fracture healing in an osteoporotic rat model.

2017

Purpose As result of the current demographic changes, osteoporosis and osteoporotic fractures are becoming an increasing social and economic burden. In this experimental study, extracorporeal shock wave therapy (ESWT), was evaluated as a treatment option for the improvement of osteoporotic fracture healing. Methods A well-established fracture model in the metaphyseal tibia in the osteoporotic rat was used. 132 animals were divided into 11 groups, with 12 animals each, consisting of one sham-operated group and 10 ovariectomized (osteoporotic) groups, of which 9 received ESWT treatment. Different energy flux intensities (0.15 mJ/mm2, 0.35 mJ/mm2, or 0.55 mJ/mm2) as well as different numbers o…

A mismatch between athlete practice and current sports nutrition guidelines among elite female and male middle- and long-distance athletes

2017

Contemporary nutrition guidelines promote a variety of periodized and time-sensitive recommendations, but current information regarding the knowledge and practice of these strategies among world-class athletes is limited. The aim of this study was to investigate this theme by implementing a questionnaire on dietary periodization practices in national/international level female (n = 27) and male (n = 21) middle- and long-distance runners/race-walkers. The questionnaire aimed to gain information on between and within-day dietary choices, as well as timing of pre- and posttraining meals and practices of training with low or high carbohydrate (CHO) availability. Data are shown as percentage (%)…