Sport and exercise psychology research : from theory to practice / edited by Markus Raab (Department of Performance Psychology, German Sport University, Cologne, Institute of Psychology, Cologne, Germany ; School of Applied Sciences, London South Bank University, London, United Kingdom), Paul Wylleman (Research Group Sport Psychology and Mental Support (SPMB), Department of Movement and Sport Sciences, Faculty of Physical Education and Physiotherapy and Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, Brussels, Belgium), Roland Seiler (Department II (Sport Psychology), Institute of Sport Science, University of Bern, Bern, Switzerland), Anne-Marie Elbe (Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark), Antonis Hatzigeorgiadis (Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece).