POLAR RS 800 SD - Manual (Page 13)

Resting Heart Rate. High variability.
OwnZone ®
When you exercise your heart rate increases and the variability timing
between beats decreases. Polar’s research has identified that the point
where the timing difference plateaus (i.e. becomes too negligible to
measure) is the point where your aerobic training becomes effective.
From a controlled warm-up, the OwnZone feature identifies the point
where variability plateaus and then defines the correct aerobic training
zone for you. The benefit of this real-time measurement is that it matches
your training intensity with your daily physical condition, compensating
for effects such as: training load vs. recovery, stress, tiredness and even
the on-set of illness.
Training dynamically with OwnZone enables you to optimally balance
effort vs. effect.
Aerobic Training. Less than 3ms SD1.
642 640 638 639 641
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