Fig. 2

Training adherence; 1) trained regularly 2 - 3 times a week, 2) trained regularly 1 - 2 times a week, 3) trained irregular, but at least 4 times a month (approximately once a week), 4) trained irregularly but at least 2 – 3 times a month, 5) trained some, but stopped training after a while, 6) did not use the training offer