Body tissue that is connected to and moves the bones in the body tendon 2. the ability of a muscle to move a weight repeatedly, or for an extended period of time muscle endurance 3. the increase in the size of a muscle fiber in response to resistance training atrophy 4. the most amount of weight a muscle can move at a single time hypertrophy 5. the decrease in the size and strength of a skeletal muscle when it is not used skeletal muscles 6. strong body tissue that connects the muscles to the bones muscle strength