SportsKeeping fit without risksTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoSports04/07/2016April 7, 2016Trainer Leo Löhr tells us how to train safely and effectively. Fitness regimens should always be done in a group, and under the supervision of an experienced trainer. That increases their intensity and effectiveness.https://p.dw.com/p/1IR6rAdvertisement