Nautilus T616 Assembly Manual / Owner's Manual page 32

optimal target rate may be higher or lower. Consult your physician for your individual target heart rate zone.
Note: As with all exercises and fitness regimens, always use your best judgment when you increase your exercise time
or intensity.
Maximum Heart Rate
Target Heart Rate Zone
(keep within this range
for optimum fat-burning)
32
FAT-BURNING TARGET HEART RATE
250
196
200
191
186
181
167
162
158
154
150
118
115
112
100 109
50
0
20-24 25-29 30-34 35-39 40-44 45-49 50-54 55-59 60-64 65-69
176
171
166
161
156
150
145
141
137
133
106
103
100
97
94
Age
151
146
128
126
91
88
70+