Remember back in grade school, when jumping rope at the playground or in your backyard was a totally fun, carefree activity? Whether you did Double Dutch or skipped to Miss Mary Mack, you probably ...

If you think jumping rope is for “girls in their skirts, jumping on a playground,” Alysia Mattson suggests you reconsider. “It’s way more of a badass sport than that,” said the 28-year-old Seattle ...