Gymnastics develops muscle and strength without the loss of flexibility - also good for cardio/endurance. What more could you ask for a perfect sport?  A mix of performance and training ttechniques today. Videos too, further down... As you will have seen in some of the videos, training does not always go exactly to plan, and it can be tough... but its worth it, or the kids wouldn't stay with it... as inthis elgrip shoulder flexibility training. They all want it, and they want to be as good as their friends.