For celebrity trainer Jeanette Jenkins, fitness can double as family bonding. On Tuesday, the Los Angeles–based creator of the Hollywood Trainer posted an Instagram video of her and her 14-year-old ...

For most of us, making it through the workday is deserving of a championship belt, so spending long hours at the gym to get in shape is just not going to happen. But does that mean you have to give up ...

UNLESS YOU'VE BEEN living under a weight rack for the past decade, you’ve heard of HIIT. Short for high intensity interval training, the protocol involves alternating short bouts of all-out effort ...

In The Know: Fitness is a series of exercise videos hosted by personal trainer, Jeremy Sry, in which he demonstrates step-by-step workouts that are easy to do at home, at the gym and even on the go.

Workout trends come and go, but when it comes to the biggest bang for your buck, high-intensity interval training, or HIIT, has staying power. HIIT’s specific origins are uncertain; some say it dates ...

All runners know that cross-training is essential — but forcing themselves to actually do it can be a struggle. That's why we love this circuit led by fitness instructor Ashley Joi. It's actually the ...

A quick HIIT circuit workout you can do at home care of two trainers who also happen to be best friends and professional athletes, too? Yes, yes we have that. So, without further ado, a dynamic ...

The split jump is part of the body weight circuit of high-intensity interval training. Katherine Jones [email protected] Once upon a time, experts suggested 30 minutes of moderate ...