Hip Muscle Strength in femoro-acetabular impingement participants versus normal controls.

To investigate the hip muscle strength in a normal control group and compare this to patients who have a diagnosis of femoro-acetabular impingement (diagnosed clinically and with confirmed radiological features).

Inclusion Criteria:

• Males and Females.
• Aged 18-30.
• Control group - Normal range of movement and no evidence of femoro-acetabular impingement on clinical examination (negative impingement test, no symptoms).
• Participants with femoro-acetabular impingement as diagnosed clinically and on radiological imaging for the comparison group (MRI).

Exclusion Criteria:

• Patients under the age of 18.
• Patients over the age of 30.
• Control group - evidence of underlying pathology affecting the hip, abnormal range of motion, evidence of femoro-acetabular impingement on clinical examination.
• Previous surgery of the hip joints.
• Medical history of arthritis (including rheumatoid and reactive).
• Family history of femoro-acetabular impingement (control arm participants).
• Patients who are currently experiencing or have experienced hip pain in the previous 1 year (control arm).
• Other conditions (e.g. neurological, muscular dystrophy etc) which may affect hip muscle strength.

Control Arm Group - Medical Students who fit the inclusion criteria and are between ages of 18-30.

FAI Comparison Group - Participants will be recruited from Young Adult Hip Clinic, meeting the defined inclusion criteria and also being between the ages of 18-30.