You don’t need weights to strengthen your core—just this six-move, 13-minute bodyweight workout

A woman performing a side plank outside on a yoga mat as part of a core workout

A strong core is (quite literally) at the center of a fit and functional body, so it pays to dedicate some time to training it. Fortunately, you can do this pretty much any time, anywhere. 

This workout from personal trainer Isa Maddocks takes just 13 minutes and uses just your bodyweight to work your midsection muscles. While you don't need any equipment, a yoga mat can be handy for providing extra grip on slippery floors.