10e congrès annuel 4S  |  Macolin  |  8 au 9 février 2018

« La performance dans le sport »

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Conférences principales

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Jeudi, 8 février 2018, 9h15 - 10h00

Prof. Dr. George A. Brooks, University of California, Berkeley (USA)
Metabolic Systems: The Formation and Utilization of Lactate

Prof. Dr. George A. Brooks

As a collegiate athlete George Brooks was very much interested in understanding physiology and biochemistry to improve his time in the 440 and 880 yard runs. When his competitive days were over Brooks earned a Ph.D. in Exercise Physiology at the University of Michigan and subsequently took a post-doctoral fellowship in Muscle Biology at the University of Wisconsin. Brooks then joined the University of California Berkeley Faculty in July of 1971. Brooks retained an interest in understanding human performance during exercise and at high altitude, but he turned his attention to studying basic metabolic processes to better understanding of human capabilities in health and disease. In recent years, Brooks and colleagues developed two working hypotheses: The “Lactate Shuttle”, and the "Crossover Concept". Research on the Lactate Shuttle has been to elucidate the pathways and controls of lactate (lactic acid) formation and removal before, during and after exercise. The work involved studies on humans and animals, the use of isotope tracers, muscle biopsies and cardiovascular, pulmonary and endocrine measurements. Along the way Brooks and colleagues discovered that the body makes lactate all the time, and that endurance training develops the capacities to produce, remove and utilize lactate as a fuel energy source. Hence, Lactate Shuttle theory has revealed three functions of lactate; lactate is a fuel energy source, the main gluconeogenic precursor, and a signaling molecule with autocrine, paracrine and endocrine functions. In fact, they demonstrated that lactate is favored as a fuel by working red muscle, heart, liver and brain.  Along the way they also discovered that the muscle respiratory apparatus is comprised of a large network, a “mitochondrial reticulum” that doubles in mass in response to regular exercise because training increases the expression of hundreds of genes. Most recent research show that lactate is a favored brain fuel in healthy and injured persons and clinical research studies are under way to improve outcomes in traumatic brain injury patients using lactate supplementation. Recently Brooks and colleagues noted similarities between metabolic responses in exercise and cancer (i.e., the Warburg Effect). Currently, independent investigators and pharmaceutical are attempting to control cancer cell proliferation by developing Lactate Shuttle blockers.
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Vendredi, 9 février 2018, 8h30 - 9h15

Prof. Dr. Alfred Richartz, Universität Hamburg, (D)
Kinder im Leistungssport

Prof. Dr. Alfred Richartz

Prof. Dr. Alfred Richartz ist Professor für Bewegungs- und Sportpädagogik am Institut für Bewegungswissenschaft der Universität Hamburg. Seine Forschungsschwerpunkte drehen sich um pädagogische Fragen zum Leistungssport von Kindern, Jugendlichen und Erwachsenen. Dazu zählen u. a.: chronische / akute Belastungen und Formen der Bewältigung, personale und soziale Ressourcen im Kontext des Sports, Leistungssport und Biographie, Entwicklungskontexte im Leistungssport (Talentschulen, Sportbetonte Schulen, Internate, Duale Karriere), soziale/pädagogische Kompetenzen von Trainern, Beziehungsqualität Trainer-Athlet und Konflikte und Konfliktmanagement.

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Vendredi, 9 février 2018, 13h30 - 14h15

Prof. Dr. Mathieu Winand, LUNEX University, Luxembourg
Innovate to perform, a key challenge for sport organisations

Dr. Mathieu Winand

Prof. Dr. Mathieu Winand is Professor of Sport Management at LUNEX University in Luxembourg and Head of Department of International Sports Management. His research interests are in the area of sport governance, performance management and innovation in sport. His research examines performance management and organisational innovativeness of non-profit sports organisations, particularly key determinants leading to high performing sports organisations. Mathieu is Deputy Editor of Sport, Business and Management: An International Journal and Chair of the Strategic Interest Group on ‘Managing Sport’ at European Academy of Management (EURAM).