Spring washers, sometimes called disc springs, are a subtype of washers. They lend their mechanical capabilities to the unique profile of the material: when subject to a load, the irregularities of the washer compress with a proportionate resistance to return to their predeflected shape.
You should never stretch a pulled muscle to the point of pain or you risk re-injuring it. Do not overstretch the pulled muscles. Too much stretching can retear injured muscle fibers. Gently stretching a pulled muscle may relax the surrounding muscle fibers, which may be tight in response to the injury.
Muscle tendons in the shoulder can be torn from the stress of repeated motions, such as your golf swing. There are other causes, too, including over-exertion and physical injuries such as falls and collisions. If you do tear a tendon, you should consult a physician to create a plan of care.pply an ice pack to the injured shoulder for up to 20 minutes at a time. You can do this several times a day to manage pain and reduce swelling, but you should not expose ice directly to the skin. Use ice packs through clothes or wrap them in towels first.