SHUTTLE RUN

Teen average:
Guys: 9.4-10.2 seconds to complete the run
Girls: 10.9-11.2 seconds to compete the run

How to do it: Mark two parallel lines 30 feet apart and place two blocks of wood or similar object behind one of the lines. Time yourself: Run to the blocks, pick one up, run back to the starting line, place the block behind the line, run back and pick up the second block and return to the starting line.