American Ninja Warrior' is inspiring children to create ninja workouts of their own and take classes at specially designed obstacle course gyms like Iron Sports in Houston. Photo: Scott Dalton for ...

Shinobi Poli started the Shinobi School in his own backyard in 2014 and now he has his own spot at University Mall training students ranging in age from six to 60.

A skipping world champion has inspired youngsters and teachers at a Tavistock school. Pete Thompson, the self-styled Skipping ...