These two exercises help relieve muscle tension.
3. Runner’s Stretch
Stand behind a chair with your fingertips resting lightly on the chair back. With your feet about hip-width apart and your right foot forward, bend your right knee until it’s over your right heel, and press your hips forward until you feel a stretch in your left calf. Try to keep your left heel on the floor. Increase the stretch by gently pressing your hips toward the chair. Hold for 3 to 5 breaths; then switch legs.