![Top fitness trend: High-intensity interval training | ACSM in the News Top fitness trend: High-intensity interval training | ACSM in the News](http://www.seattlemartialartsclasses.com/wp-content/uploads/2014/03/logo.png)
Workout wimps, watch out: The top two fitness trends for 2014 are high-intensity interval training, such as P90X and CrossFit, and body-weight training such as push-ups, pull-ups, sit-ups and planks, according to an annual fitness trends survey out today.
Comments