SummaryReasons for performing study: Water treadmill exercise is often incorporated into rehabilitation programmes for horses yet little is known about the biomechanical and physiological responses to water walking. Objectives: To establish whether stride frequency (SF) reached steady state as a result of 6 introductory water treadmill sessions and then to investigate the effect of increasing water height on SF, stride length (SL) and heart rate (HR).

genetic testing to identify patients, and family members, who should undergo additional preoperative testing and monitoring for other paragangliomas. Concomitant lymph node dissection does not appear to add value in absence of clinic suspicion for malignancy. Disclosure of Interest: None Declared.