Relatively simple but effective exercises are often particularly popular. Step-ups definitely fall into this category, primarily working our glutes and legs. They also burn calories at the same time.

In the realm of functional fitness, side lunges (also called lateral lunges) are a versatile and underrated exercise, often ...

Planks are pretty much your best friend when it comes to buiding badass core strength. But if you've ever worked 30- or 60-second timed planks into your routine, you know they can be pretty damn ...