 There are Bruce Protocol Tables available for Maximal and Sub Maximal (more practical with the majority of the non-athletic or competitively athletic population) efforts (see below).Total Duration = 21 minutes

The Modified Bruce protocol starts at a lower workload than the standard test and is typically used for elderly or sedentary patients.The first two stages of the Modified Bruce Test are performed at a 1.7 mph and 0% grade and 1.7 mph and 5% grade, and the third stage corresponds to the first stage of the Standard Bruce Test protocol as listed above.