Fitness trainer Rebecca Louise shares a quick, yet effective underbutt workout that you can add on to the end of any leg-day routine. I’ve got a love-hate relationship with lower-body training. On one ...

If you have 45 minutes to spare, that's great — but in as little as five minutes you can knock out some stress with swift uppercuts, side hooks, and powerful kicks. Kickboxing's high-energy mix of ...

Get ready to feel the burn with one of our favorite trainers on YouTube, Rebecca Louise! This no-equipment workout has cardio moves to get your heart rate up and toning moves that will work every ...