Ice Hockey Goaltender Physiology Profile and Physical Testing: A Systematic Review and Meta-Analysis

International Journal of Exercise Science 14(6): 855-875, 2021. This review aims to 1) be the first systematic review and meta-analysis of the literature examining the physiology and assessment of goaltenders, and 2) present a physiological profile of ice-hockey goaltenders. It will 1) highlight physiological differences between goaltenders and players at other positions, 2) determine strengths and weaknesses of ice hockey goaltenders, and 3) offer possible guidelines for strength and conditioning coaches. Six electronic databases were systematically searched in October 2019 using the PRISMA model. A total of twelve scientific articles published in peer-reviewed journals were included. Professional male (PM) goaltenders had the following profile for age (A) 26.8 ± 2.5 years, body weight (BW) 85.64 ± 3.79 kg, height (H) 184.38 ± 2.79 cm, body fat % (BF%) 11.9 ± 2.22, VO2max 49.9 ± 4.45 ml/kg/min, anaerobic power (AP) 12.78 ± 1.63 W/kg, and combined hand grip strength (GS) 120.7 ± 15 kg. Amateur male (AM) goaltenders presented the following: A: 18.2 ± 0.75, BW: 83.85 ± 4.51, H: 184.96 ± 2.06, BF%: 10.51 ± 1.61, VO2max: 55.73 ± 4.57, AP: 10.9 ± 1.2 and GS: 109.08 ± 14.06. Amateur female (AF) goaltenders presented the following: A: 21.04 ± 1.84, BW: 63.4 ± 5.14, H: 164.86 ± 5.73, BF%: 22.12 ± 2.27 and VO2max: 42.84 ± 3.59. Overall, PM goaltenders are heavier, have a higher BF%, and exhibit greater GS and abdominal muscular endurance than AM, while AM goaltenders are heavier, taller, leaner, and can generate greater lower-body muscular power than AF goaltenders. In the current literature, there were a small number of studies on women players and a lack of distinction between player position in reported results. Specific physiological assessments during NHL Combines should be developed for goaltenders in accordance with their specific positional demands

Physiological Responses to Repeated Running Sprint Ability Tests: A Systematic Review

International Journal of Exercise Science 13(4): 1190-1205, 2020. The purpose of this study was to review acute physiological responses induced by repeated running sprint ability (RRSA) tests that could serve as references for practitioners utilising repeated sprints as a performance measure with athletes. This research was conducted following the PRISMA methodology. The systematic search was conducted in November 2019 and yielded 26 different scientific articles. Only peer-reviewed full-text article were included as abstracts are too short to allow proper explanation of the RRSAT methodology that was employed. According to the present literature, practitioners should use the following assessments: the 6x40m RRSA protocol with one Change of Direction (COD) (20+20 m with a 180° COD) and 25s of passive recovery between sprints with soccer players; the Intensive Repeated Sprint Ability (IRSA) test with men basketball players; the Futsal Intermittent Endurance Test (FIET) with futsal players; the Repeated Shuttle Sprint Test (RSST) with men handball players; and the Multiple Repeated Sprint Ability test for Badminton players (MRSAB). The present review should serve as a reference standard for RRSA tests. Further research should be directed towards creating and validating more specific RRSA tests protocols to each sports physiological and physical demands

Body Composition (DXA) and Maximal Strength of Powerlifters: a Descriptive Quantitative and Longitudinal Study

International Journal of Exercise Science 16(4): 828-845, 2023. The purpose of this study was to present the relationships between maximal strength and body composition and to conduct yearly follow-ups presenting the chronic effects of maximal strength training on body composition. Thirty-four (age = 28.8 ± 8.7 yrs) classic powerlifters (M = 21; F = 13) completed at least one Dual-Energy X-Ray Absorptiometry (DXA) 43.97 ± 23.93 days after a sanctioned international powerlifting federation affiliate competition (Squat + Bench Press + Deadlift = Total (kg)). In addition, thirteen subjects (n = 13) completed at least one yearly follow up. Paired sample T-Tests and simple linear regressions were performed to determine significant effects on body composition and maximal strength measures. Prediction formulas were obtained as follows: Bone Mineral Content (BMC) (g) = 3.39 * Total (kg) + 1494.78 (r = 0.84; p \u3c 0.000; SEE = 348.05); Bone Mineral Density (BMD) (g/cm3) = 0.000390 * Total (kg) + 1.115 (r = 0.71; p \u3c 0.000; SEE = 0.062); Total (kg) = 10.84 * Lean Body Weight (LBW) (kg) – 154.89 (r = 0.90; p \u3c 0.000; SEE = 70.27); Total (kg) = 22.74 * Relative LBW (kg/m) – 306.66 (r = 0.92; p \u3c 0.000; SEE = 64.07). Significant differences were observed in BMD (+1.57 ± 1.55%; p = 0.018; ES = 0.22), between measures one and two (333.7 ± 36.3 days apart) as well as LBW (-2.95 ± 3.82%; p = 0.049; ES = 0.16), and Body Fat Percentage (+2.59%; p = 0.029; ES = 0.20) between measures two and three (336 ± 13.3 days apart). Thus, maximal strength can be used to predict BMC and BMD, while LBW can be used to predict maximal strength. As well, consistent powerlifting practice can increase BMD in adults

Evaluation intégrée de la pression chimique en Seine et son impact par différentes réponses écotoxicologiques

info:eu-repo/semantics/nonPublishe

Evaluation intégrée de la pression chimique en Seine et de son impact par diverses réponses écotoxiques

Etude réalisée dans le cadre du programme de interdisciplinaire de recherche PIREN-Seine (CNRS)info:eu-repo/semantics/publishe

Evaluation intégrée de la pression chimique en Seine et de son impact par diverses réponses écotoxiques

info:eu-repo/semantics/publishe

Transthyretin amyloid cardiomyopathy in France: A cross-sectional multi-centre study (333 patients)

International audienceAimsWe designed a two-part epidemiological study, an observatory for amyloid transthyretin amyloidosis (OBSAMYL). The first objective was to identify and count the number of patients diagnosed with ATTR amyloidosis in participating French centres. The second was to evaluate the use and safety profile of tafamidis meglumine in real-world settings.MethodsThis was a non-interventional descriptive retrospective multi-centre national study. A census was conducted to estimate the number of patients diagnosed with ATTR amyloidosis who were still alive at the time of the study (defined as 1 June 2017). Patients with ATTR amyloidosis were contacted by French centres from the French Rare Diseases network program. Patients aged ≥18 years with hereditary transthyretin-mediated amyloidosis (ATTRv) or wild-type transthyretin amyloidosis (ATTRwt) or a pathogenic transthyretin (TTR) mutation were eligible.ResultsOf the 38 centres (13 cardiology and 25 neurology) invited to participate, 22 (60.5%) (10 cardiology, 12 neurology) participated. There were 333 patients in cardiology census population. Before diagnosis one-fourth of the patients had cardiac decompensation, and one-fifth had a pacemaker. The 177 ATTRwt-CM patients were older (80.1 ± 7.0 years versus 64.2 ± 14.3 years; P < 0.001), had a higher incidence of hypertension (51.4% versus 35.3%; P = 0.003), and a higher incidence of arrhythmia (45.8% versus 28.3%; P = 0.001) than 156 ATTRv patients. There were no differences in disease severity according to New York Heart Association classification. The ATTRv-mixed + CM group had more neurological symptoms (paraesthesia or dysesthesia, neuropathic pain, digestive disorders, and orthostatic hypotension) than the ATTRwt-CM group (P < 0.001). Biopsies were performed on nearly 90% of patients with most of them being positive. The most common biopsy sites were salivary glands (137 biopsies) and cardiac tissues (77 biopsies). Tafamidis meglumine was administered to 174 cardiology patients, including 96 with ATTRv-mixed, 61 with ATTRwt-CM, and 17 with ATTRv-CM. Tafamidis meglumine was generally well tolerated. 18 adverse events, including 12 severe adverse events were reported in 174 patients as safety-related incidents. Tafamidis meglumine was likely responsible for five adverse events, one of which was severe.ConclusionThis study of real-world clinical ATTR amyloidosis cases in France further elucidated the characteristics of and diagnostic approach to a cardiology patient population census of 333 patients. As of June 1, 2017, 177 ATTRwt-CM, 117 ATTRv-mixed, and 39 ATTRv-CM patients were alive. Our experience with tafamidis meglumine in the cardiology population confirmed its good tolerance

Programme PIREN-Seine - Phase 6 Axe 4 : « Ecologie & Ecotoxicologie » Les déterminants de la qualité écologique du milieu aquatique

[Departement_IRSTEA]Eaux [TR1_IRSTEA]QUASARELes organismes vivants dans le milieu aquatique sont soumis à de multiples pressions combinées : chimique, hydro- morphologique, thermique, trophique (matière organique, eutrophisation...), qui impactent, et éventuellement perturbent leur fonctionnement. La santé des individus qui composent la biocénose peut aussi être altérée par ces différentes pressions. S'il est possible de faire des relations causales entre une pression et une réponse biologique, l'enjeu aujourd'hui est de pouvoir prédire les conséquences sur les différentes composantes de la biocénose de l'ensemble des pressions qui interagissent. L'observation des organismes vivants, à différents niveaux d'organisation (la cellule, l'organe, l'organisme, la population, ou la communauté) est proposée depuis plusieurs années pour renseigner sur l'état de santé des organismes, des communautés (bio- indication de type DCE), sur l'état écologique global du milieu, ou sur l'impact des contaminants chimiques (biomarqueurs en écotoxicologie). Au cours de la phase 6 PIREN -Seine, nous avons étudié à la fois comment les observations faites sur la biocénose peuvent nous renseigner sur les impacts des différentes pressions, y compris la pression chimique (domaine de l'écotoxicologie), mais aussi comment la multiplicité de ces pressions (caractéristique d'un bassin versant très anthropisé comme l'est celui de la Seine), ou les modifications de ces pressions, impactent le vivant