Stress can leave your muscles feeling tight and needing a stretch. Challenging workouts can, too. Long, hard runs? Yep. Heck, just sitting at your desk or driving for a long time can leave you tight!

Stretch and loosen your legs for improved flexibility in your whole body. Cassy Vieth will help you move with more confidence by identifying the gaps in your fitness so that you can steadily improve ...

Stand with your feet directly underneath your hips and place your hands lightly behind your head with elbows wide. Slowly ...

Consider the following workouts if you are focused on building leg muscle stamina while improving your cardio scores. These are ideal for those with strong legs but lack endurance in their heart, ...