Resistance Training for Patients Diagnosed With External Snapping Hip

Inclusion Criteria: * Diagnosed with Greater Trochanteric Pain Syndrome at the Orthopedic Surgery Department at Aarhus University Hospital in the period 2013-2015. In case of too few participants from this sample, we plan to include patients diagnosed during 2018 * Minimum 18 years old * Able to read and understand Danish * Have experienced jump/click from the outside of the hip associated with pain within the last 14 days * Have a residence of a maximum of 55 km from Aarhus C * The participants must not have participated in regular resistance training of the hip muscles for more than 1 day per week in the last 6 months leading up to the start of the intervention * The participants must not have undergone a total hip replacement, a Periacetabular Osteotomy, a Z-plastic surgery or arthroscopy in the hip within 6 months before the start of the intervention or have a planned hip surgery during the intervention period * The participants must not suffer from neurological, rheumatological, metabolic or respiratory diseases that will influence the effect of the intervention * The participants must not have a planned vacation lasting more than 14 days during the intervention period, while not having the opportunity to extend the training period accordingly Exclusion Criteria: * BMI \>40 * No longer suffering from external snapping hip * Pregnancy