David's other affiliations and positions include Sports Science consultant to the British Equestrian Federation, member of the editorial board of the Equine Veterinary Journal, member of the Specialists Consultants Board for Equine Veterinary Education, author of a recent book entitled Equine Exercise Physiology, Visiting Professor in Respiratory and Cardiovascular Physiology at the University of Bristol, member of the Animal Science Group of the UK Biosciences Federation, representation of the UK in Brussels on issues relating to the use of animals in research, Visiting Professor at Nottingham Trent University, Board Member of the International Conference on Equine Exercise Physiology, Board Member of the Veterinary Comparative Respiratory Society and editor of Equine and Comparative Exercise Physiology.