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.
Publication of the 2012-13 Administrators in Higher Education Salary Survey marks the 46th year for this. survey, previously known as the Administrative Compensation Survey. Results for this yearâs redesigned. survey reflect the salaries of 55,017 administrators in 190 senior-level administrative positions at 1,251. colleges and universities nationwide, making it a key resource for salary-related decisions in the higher. education community.