Running Stretches for Back Muscles
Shoulders and Upper Back
Image: Mitch Mandel
Strong shoulders keep your upper body relaxed, work with the arms to propel you forward, and help you breathe efficiently. "Proper spinal alignment optimizes the function of the lungs and diaphragm," says Pilates instructor Rebekah Rotstein.
Planks: Rest on elbows and hold for 20 to 60 seconds, five to 10 times.
Side Planks: Balance on forearm, hold 20 to 60 seconds, five times each side.
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