Timex M8 Serie Manual Del Usuario página 7

this feature first is highly recommended. It helps you stay within your
desired zone and maximize your fitness program.
Target Fitness Zones
The lower and upper heart rate limits for target fitness zones are based on
the Maximum Heart Rate (MHR) value. Table 2.1 illustrates the formula used
by the watch to calculate the lower and upper heart rate limits for each zone.
Table 2.1: Fitness Zones
ZONE Lower Limit
❘
5 90% MHR
❘
4 80%
❘
3 70%
❘
2 60%
❘
1 50%
It's important that you set a Maximum Heart Rate value because the five
automatic target zones are based upon that value. You can determine your
rate either through controlled testing or by one of many estimation
methods. One widely used method is to subtract your age from 220. Note,
however, that methods like this may yield inaccurate results because
maximum heart rate depends on physiological factors besides age, such as
fitness level and genetic make-up.
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Upper Limit
❘
100% MHR
❘
90%
❘
80%
❘
70%
❘
60%
Figure 2.2 – Default Settings for HRM Setup Mode
START/SPLIT Button –
(START/STOP for
Fitness Model) - Press
to toggle the ON/OFF
flag, which indicates
whether the out-of-
zone alert has been
activated/deactivated.
STOP/RESET/SET Button –
(SET/RESET for Fitness Model)
- Press to enter the setting
state for HRM Setup Mode.
HEART RATE Button –
Press to select a target
heart rate zone. In this
example Zone 3 is your
target heart rate zone.
The selected zone is
based on a Maximum
Heart Rate (MHR) of
165; setting a different
maximum rate changes
the zone's range.
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