Muscle contraction is the activation of tension-generating sites within muscle fibers.In physiology, muscle contraction does not mean muscle shortening because muscle tension can be produced without changes in muscle length such as holding a heavy book or a dumbbell at the same position.n contrast, a muscle contraction is isotonic if muscle length changes but the muscle tension remains the same. Furthermore, if the muscle length shortens, the contraction is concentric.
Senior Systems Administrators with one to two decades of relevant experience report an average salary of approximately $85K. After two decades in the workforce, the average Senior Systems Administrator generally earns more than ever; median pay for this group is estimated at $92K.
The median salary for Nursing Home Administrators in the United States is approximately $85K per year, but employers pay the most in Philadelphia, offering around $105K on average. Nursing Home Administrators will also find cushy salaries in Los Angeles (+20 percent), Houston (+12 percent), Columbus (+9 percent), and Portland (+4 percent). This report is based on answers to PayScale's salary questionnaire. Read More.