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.
1 Rest your Achilles tendon. 2  Avoid all activities that strain the tendon, such as stair climbing or running. 3  Try other activities, such as swimming, while you give your tendon the days, weeks, or months it needs to heal. 4  Your doctor will tell you what you can and cannot do. Rest your Achilles tendon. 2  Avoid all activities that strain the tendon, such as stair climbing or running. 3  Try other activities, such as swimming, while you give your tendon the days, weeks, or months it needs to heal. 4  Your doctor will tell you what you can and cannot do.