Instructions: Do 3 sets of 30 to 45 seconds of each exercise, resting for 30 to 15 seconds in between. Lie on your back with ...

Bookmark this list of 15-minute workouts for the next time you need a fast, but effective exercise routine to bust out when you’re short on time.

This 15-minute HIIT ab workout helps you get the most core-strengthening benefits from every rep by focusing on time rather than reps.

So, after coming across fitness trainer Lindsey Bomgren’s 15-minute Pilates ab workout, I decided to give the low-impact class a go without spending a dime.

You just need 15 minutes, one kettlebell and three exercises to strengthen your entire body and core muscles, according to a ...

This class from Rachel McClusky includes bodyweight exercises you can do on a yoga mat. You'll end the session with muscles activated and a positive mind.

It doesn't take a gym to build a strong body and core; you can do it using three functional exercises and your bodyweight, ...

This is my 15-minute adjustable dumbbell workout is tailored specifically for runners who are short on time, like me. With adjustable dumbbells, you can knock out this workout in your living room ...

This workout, which strengthens both your muscles and your heart, can be done at home or in the gym.

Writer Halle Newman tried using the stair climber for 15 minutes every day for two weeks. She describes the cardio and strength benefits of using this machine.

This group fitness class offers a dance party that doubles as a cardio workout. Plus, it's no equipment necessary and only requires 15 minutes.