Table 1

Rating of perceived capacity (RPC) scale9

Are you able, for half an hour or more, to
 1Sit
 2
 3Walk slowly
 4
 5Walk at normal pace/cycle slowly
 6
 7
 8Jog/cycle
 9
 10Run
 11
 12Run fast/cycle fast
 13
 14
 15Run very fast (more than 15 km/hour)
 16
 17
 18Perform elite aerobic training (women)
 19
 20Perform elite aerobic training (men)