Calisthenics might be the word your grandfather used for physical exercise. This type of workout started cropping up in grade schools in the late 19th and early 20th centuries. These low ...

Fitness, like fashion, is cyclical. As sure as skinny jeans will be cool again, you can bet that training styles like calisthenics will always come back around. But this isn’t about nostalgia.

Calisthenics is a safe and effective exercise system based on bearing your own bodyweight, writes personal trainer Paul O’Brien ...