Bend the front leg while keeping the back leg straight until a stretch is felt in the calf muscle. Hold this position for 5 to 10 seconds, then release. Repeat five times on each side; ...

The backward-stepping motion helps to keep your front leg upright, which may reduce knee stress. This makes it an ideal choice for anyone dealing with aches and pains or general mobility issues.

You're probably getting into position for this lower body crusher incorrectly. Fix that using these expert tips.

Your front leg should be planted far enough forward to allow you to lunge without your knee extending beyond the toes of your front foot. Keep your core tight, your chest up, and your shoulders down.