Oertzenweg 19 b
14163 Berlin
+49 30 838 62299 / 62300
pferdeklinik@vetmed.fu-berlin.de
Poor performance is a common complaint in equine veterinary practice and can pose a diagnostic challenge to the equine practitioner as the triggering pathology can be located in almost every organ system and very often more than one problem causes the performance deficit. Most studies regarding this topic have been conducted on racehorses with poor racing performance. Due to the very different demands the Olympic disciplines present to the equine athlete compared to racing, performance limiting medical conditions manifest in different ways. For example, sport horses rather present with problems under the rider as difficulties to collect or to keep contact with the bit or difficulties performing specific maneuvres in dressage or making distances or sharp turns in the show-jumping ring. The most common medical conditions affecting horses with a complaint of performance problems are respiratory diseases and orthopedic problems like subtle lameness or back pain. However, also cardiac, neurologic and muscular problems, as well as metabolic and hormonal imbalances can limit the performance potential of the equine athlete. For diagnosing the cause of poor performance, a detailed anamnesis and thorough clinical examination are of utmost importance. Further diagnosis is then based on the results of the anamnesis and the clinical exam. Besides an examination at rest an examination during and after exercise is important to detect any abnormalities that may not be present at rest and to evaluate the clinical significance of any findings. This review shall give an overview about the causes and manifestations of poor performance in the horse with special focus on warmblood sport horses competing in dressage, show jumping and eventing. Moreover, diagnostic possibilities in the field are discussed.