Ergometer Cycling
BehavioralErgometer Cycling under the guidance of a physical therapist after the second postoperative week. These training sessions were scheduled to be performed three times a week for a time period of at least three weeks. The resistance of the ergometer was set to a minimum (for example 30 Watts). Physical therapists were informed to pay special attention, that the height of the saddle is set so that the forefoot reaches the pedal with the knee in extension.