The research project is an experimental study with three study visits at the study site at the University Hospital Düsseldorf (UKD) / Heinrich Heine University Düsseldorf (HHU) and a three-week training phase in a parallel design. Patients with movement disorders (ataxia or Parkinson\'s disease) can take part. The training phase includes individually adapted, targeted, video-based coordination and balance training, which should lead to an improvement in gait and balance. Two different training protocols are carried out in parallel for three weeks each: One with 20 minutes of training per day, four days per week; and one with a training duration of 40 minutes per day, only two days per week. All patients initially take part in a one-week familiarization phase without training and are then randomly assigned to one of the two training protocols or the control group without additional training. In both training phases, the total amount of weekly training time is the same, but the frequency and duration of training sessions per week differs. The patients who were assigned to the control group without additional training can complete the training after their third study visit.