Sandra Heck is a Postdoctoral Research Fellow with the Institute for Applied Educational Sciences at the University of Luxembourg. As a state-certified physical education teacher she has taught students at primary, secondary and special schools and has established university courses on inclusive physical education. She holds the position of General Secretary of the International Society for the History of Sport and Physical Education (ISHPES). She is also the National Delegate for Germany in the Fédération Internationale de l'Education Physique (FIEP) and an executive board member of the International Council of Sport Science and Physical Education (ICSSPE).

Martin E. Block is Professor in the Department of Kinesiology at the University of Virginia, USA, where he teaches courses in adapted physical education and motor development. He is internationally known for his work on including children with disabilities in general physical education as well as his work on programmes for children with severe disabilities. He is also Editor of the journal Palaestra, and Past-President of the International Federation of Adapted Physical Activity.