
Do you have some tennis balls lying around your home? Dig them out and you can use them to mobilize your upper back, strengthen these hard-to-train muscles and correct poor posture with this novel routine from Viktor Makarin, a creator who specializes in treating back pain.
The sequence involves lying face down and using the balls as reference points to manipulate the upper back and shoulder girdle, while activating all the muscles around the shoulder blades and spine that are often neglected or undertrained due to a sedentary lifestyle.