Keys Fitness Health Trainer 440 Upright Bike HT440U Owner's Manual page 15

Monitoring Your Heart Rate
TARGET HEART RATE ZONE
100%
Serious
athletic
training range
85%
Cardiovascular
conditioning
range
75%
Fat burning
range
60%
200
195
190
170
166
162
150
146
143
120
117
114
20 25 30
185
180
175
157
153
149
139
135
131
111
108
105
35 40 45
AGE
15
170
165
160
145
140
136
128
124
120
102
99
96
50 55 60
155
132
116
93
65