25
E
XTREME
H
EART
R
ATE
TM
This intense, varied workout is designed to help more experienced users to break through fitness improvement plateaus. The
workout alternates between two target heart rates* as quickly as possible. The effect is similar to that of running sprints. The
user must wear a chest strap or grip the Lifepulse
TM
sensors throughout the workout.
NOTE: It is recommended that users who run at speeds faster than 4.5 MPH wear the chest strap and do not use the
Lifepulse
TM
sensors.
When setting up the workout, the user enters a target heart rate and selects a walk speed and a jog speed. After a stan-
dard three-minute warm-up, the treadmill accelerates to the jog speed, and the incline increases, until the user reaches
the target heart rate goal of 85 percent of the theoretical maximum
†
(HRmax). That target rate is maintained for a stabiliz-
ing period. Then, the incline is reduced to 0 percent, and the treadmill slows to the walk speed. When the heart rate falls
to the 65 percent of HRmax goal, it is maintained there for a stabilizing period. The program repeats the alternating of
speeds and incline levels, continuing this pattern throughout the duration.
If the user does not reach a heart rate goal after five minutes, the MESSAGE CENTER displays a prompt to increase or
decrease speed, depending on whether the workout is in a hill or valley phase. The program does not proceed to a new
heart rate goal until the user reaches the current goal.
Cool Down
118 BPM
65% HRmax
118 BPM
65% HRmax
118 BPM
Jog
Speed
W
alk
Speed
Jog
Speed
W
alk
Speed
Jog
Speed
W
alk
Speed
Jog
Sp
eed
W
alk
Speed
Jog
Speed
W
alk
Speed
Jog
Speed
W
alk
Speed
User Example
(40 year old / 153 recommended BPM)
85 percent of theoretical maximum (HR
)
max
EXTREME HEART RATE Workout Profile
85% HRmax
Stabilizing Period
Stabilizing Period
Stabilizing Period
Stabilizing Period
Stabilizing Period
Stabilizing Period
153 BPM
85% HRmax
153 BPM
85% HRmax
153 BPM
Warm-up
118 BPM
†
Defined by the American College of Sports Medicine's "Guidelines for Exercise Testing and Prescription" as equal to 220 minus an individual’s age.
* Target Heart Rate (THR) is a percentage of the theoretical maximum (HRmax). For example, a 40-year-old user's recommended THR for the
EXTREME HEART RATE
TM
WORKOUT is 153. The workout program targets a standard 85 percent of the maximum, so the equation would be (220-
40)*.85 = 153.