"Do a bodyweight squat, then drive one knee up across your body as you twist toward it. Alternate sides," she writes. She recommends the third exercise: Side Plank Reach Through. "In a side plank, ...

These five moves go beyond the fat-burning benefits of running. They're explosive. They're intense, challenging your coordination, balance, and core strength in ways pounding pavement never will. Use ...

Heart rate zones are a way to describe how hard you're working during a cardio workout, like running or cycling. The faster ...