1
trip while walking or running.
2
put your limbs out straight and tighten your muscles.
3
jump or fall downwards
4
run as fast as you can oven a short distance.
5
turn a part of your body while the rest remains still.
6
move in a smooth and effortless way.
7
change the position of your body so that is no longer straight.
8
walk slowly and with difficulty because of an injured leg.
