Dr David Marlin is the leading expert on equine exercise physiology in the UK, and is well known internationally. He has published over 100 scientific papers and is best known for his work on heat and humidity leading up to the 1996 Atlanta Olympic Games. Throughout his career he has also worked with top racehorse trainer Luca Cumani and the British Eventing, Dressage, Show-jumping and Endurance teams. He is currently Head of Physiology at the Animal Health Trust in Newmarket and a Visiting Professor in Cardio-Respiratory Physiology at the University of Bristol. Kathryn Nankervis has taught equine exercise physiology on a range of programmes from National Diploma to MSc level. Her current job is Equine Science Centre Manager at Hartpury College. This unique centre is one of the best in Europe and combines an Equine Veterinary and Therapy Centre. Kathryn designs individually tailored exercise programmes using a wide range of techniques in order to rehabilitate competition horses with musculoskeletal dysfunction.