Sigma ONYX EASY Mode D'emploi page 46

The calculated max. HR (heart rate) forms the basis for
determining the upper and lower limits of your preferred
training zone. Selecting and setting the training zone is
done in the "Settings//User//Train. Zone" menu.
Depending on your personal targets, you can choose to
activate one of the following training zones in the ONYX
EASY.
1. Fat Burner Zone:
–> approx. 55 – 70 % of HR max.
When training at a lower intensity and hence longer
period, a bigger percentage of fat than carbohydrate is
used to provide energy. Therefore people who primarily
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The recommended training period is 45 - 90 min.
Beginners, who have not done any sport for a long time,
should also start training in this area of intensity at first.
This significantly reduces the danger of over-exertion and
the associated health risks.
2. Fitness Zone:
–> approx. 70 – 80 % of HR max.
Heart-circulation training is predominantly used to improve aerobic
performance.