The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.

In the 1970s and '80s, medicine balls were largely underutilized by people who wanted to get stronger. These weighted balls were viewed as relevant for boxers, physical therapists -- specialists -- ...

Find out why holding a strong plank for 2 minutes after 40 is a powerful test of core strength and how to safely build up to it.

Test your strength after 50 with a 60-second forearm plank that reveals exceptional core and full-body stability.

Spinning. Check. Barre. Check. Yoga. Check. If you’re a fitness lover, chances are you’re getting in your cardio and strength training. But one type of workout that is actually totally useful in your ...