4.6.4 Lowest and Highest Protocol
Exhibit 4-58. Lowest protocol for 19 through 49 years See Chapter 3, Section 3.7 for details on assignment of exercise protocol. Protocols 1
and 8 will not be used. If Protocol 1 is the assigned protocol, the SP will be assigned
to the next higher protocol. Protocol 1 is grayed out on the ISIS screen. If the predetermined protocol is 2 (the lowest protocol in the program for this age
group) and the heart rate is greater than 60 percent of PMHR during Warm-up, the
protocol will remain unchanged due to the unavailability of the next lower protocol.