The “Laboratoire Inter universitaire de Biologie de la Motricité” (LIBM) is a research unit which gathers researchers in the fields of sport sciences and skeletal muscle biology and hosts the teams of D. Freyssenet and G. Millet with their specific equipment (human locomotion exploration systems, biochemistry, immunohistology and molecular biology) and near shared technological platforms for electron microscopy, two-photon excitation microscopy, muscle contractile properties in mouse.