Horizon Fitness Endurance Series Owner's Manual page 22

TARGET HEART RATE ZONE
Your 'Target Heart Rate Zone' is a percentage of your maximum heart rate. Target
Zones will vary for each individual, depending on age, current level of condition-
ing, and personal fitness goals. The American Heart Association recommends
working-out at a 'Target Heart Rate Zone' of between 60% and 75% of your maxi-
mum heart rate. See the chart below for convenient reference. EXAMPLE for a 42-
year old user: find AGE along the bottom of the chart (round to 40), follow AGE
column up to the TARGET ZONE BAR. RESULTS: 60% of maximum Hear Rate = 108
Beats Per Minute, 75% of maximum Heart Rate = 135 Beat Per Minute.
20 25 3@ gB 4@ 45 50 Bg 60 65