At initial attendance in Accident and Emergency, subjects that meet the inclusion criteria will be offered an information sheet, and will be asked whether they want to be included in the trial. If they agree, a consent form regarding being contacted about the study and an assessment form will be completed by the advanced nurse practitioner. The forms will be given to the primary researcher and filed securely to comply with The Data Protection Act. All patients, including those who do not wish to participate or don't meet the criteria will be given the standard advice and exercise booklet. This is usual for this group of patients.