Physiotherapist Supervised Training in Patients With Anterior Shoulder Instability

The goal of this clinical trial is to investigate if physiotherapist supervised training improves neuromuscular control in patients suffering from traumatic anterior shoulder instability. The main question(s) it aims to answer are: * Does physiotherapist supervised training improve shoulder neuromuscular control * Does physiotherapist supervised training prevent recurring shoulder dislocations * Is physiotherapist supervised training as good as surgery in improving shoulder neuromuscular control Participants will be randomised to either a training group or a no-training group. Participants in the training group will undergo a 12 week training-program supervised by a physiotherapist. Participants in the no-training group will receive a consultation with a shoulder surgeon, where information and general advice regarding the shoulder injury is provided. Researchers will compare the training group to the no-training group to see if physiotherapist supervised training improves shoulder neuromuscular control in patients with traumatic anterior shoulder instability. The training group will also be compared to a historic group of patients with traumatic anterior shoulder instability, who underwent arthroscopic surgery.