Stability Ball Back Bend Start with a medium-sized stability ball on a yoga or exercise mat. Lie face-up on the ball so that its below your mid-back. Reach your hands over your head and keep your feet on the floor. Hold onto the end of the yoga mat and use it to gently pull your upper body toward the floor until you feel a stretch in your back and core. Hold this position for 30 seconds to a minute. Sanding Oblique Stretch Stand tall with good posture. Raise your right arm straight in the air so that your biceps is tucked close to your ear. Lean to the left so that you feel a stretch down your right side and core. Hold for 30 seconds to a minute and repeat on the other side. Standing Backbend Stand tall with good posture. Put your hands on your lower back. Look up and let your upper body bend backwards over your hands. When you feel a stretch in your back or core, hold for 30 seconds. Cobra Position Lie on your stomach with your forearms flat on the ground and your elbows directly under your shoulders. Push the tops of your feet into the ground and lift your chest off the mat until you feel a stretch through your core. For a more intense stretch, straighten your arms with your hands on the ground about six inches in front of your chest. Push your chest away from this position. References: https://www.active.com/fitness/articles/16-post-workout-static-stretches https://www.yogajournal.com/practice/cobra-pose