tObjectives: Exercise-related transient abdominal pain (ETAP) affects 40–60% of the physically active pop-ulation, is detrimental to performance but of unknown aetiology. Excessive movement of abdominalperitoneum is one proposed mechanism. Transversus abdominis (TrA) function may play a role reducingin the incidence of Exercise-related transient abdominal pain via the tensioning of the thoracolumbar fas-cia or increasing intra-abdominal pressure. The aim of this study is to identify any relationship betweentransversus abdominis function and exercise-related transient abdominal pain, hypothesing that thosewith stronger transversus abdominis will have lower incidence of exercise-related transient abdominalpain.