Before revision: Exercises Throughout the charts and levels, the five exercises are the same, but more difficult variations are introduced: Stretching Sit-up Back extension Push-up Running in place A walk or run may be substituted for the final exercise; the distances to be covered and the time to be taken are also specified in the plan.
After revision: <ref name=":0"></ref>Exercises Throughout the charts and levels, the five exercises are the same, but more difficult variations are introduced: Stretching Sit-up Back extension Push-up Running in place A walk or run may be substituted for the final exercise; the distances to be covered and the time to be taken are also specified in the plan.