This is the cat stretch for mid back. Start on your hands and knees both shoulder width apart. Keep your head up and your chin gently tucked with your inner core engaged below the belly button. If you have wrist pain then alternatively, you can go on your fists to support your body weight. Then arch your mid back towards the ceiling like a cat making your shoulder blades wide! Hold for 30 seconds and do 3 sets twice per day. This exercise is great for increasing mobility in the upper back, neck, stretching the Rhomboids and muscles of the neck & spine after injuries such as whiplash, neck, shoulder and mid and low back strains.