Arm wrestle better predictions

This sheet allows for the whole group to be measured one by one with an ergometer, have fun measuring each student's push force(much like a bullworker) for both arms. ie student holds one end of ergometer(large newton meter)in one hand close to waist while the other arm pushes the other end down from above. You can give the class 2 attempts as they watch their peers with better techniques get bigger FORCES and record the higher one
Then the fun starts picking arm wrestle competitions, some silly and easily predicted others beautifully balanced