Back Exercises: Arm Reach
Do this exercise on your hands and knees. Keep your knees under your hips and your hands under your shoulders. Keep your spine in a neutral position (not arched or sagging). Be sure to maintain your neck’s natural curve:
Stretch one arm straight out in front of you. Don’t raise your head or let your supporting shoulder sag.
Hold for 5 seconds.
Return to starting position.
Repeat 5 times.