NOT KNOWN FACTS ABOUT PROFESSIONAL SWIM COACHING CERTIFICATION

Dr. Russell Petrie, an orthopedic surgeon with the Hoag Orthopedic Institute in Southern California and considered one of the Los Angeles Chargers’ football team doctors, explains the 4 tendons and muscles of your rotator cuff as well as the deltoid muscle wrap the shoulder, creating “two levels of muscle mass that run about the shoulder. The r