POLAR V650 User Manual
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we recommend that you consult a doctor before starting any training program.
• Have you been physically inactive for the past 5 years?
• Do you have high blood pressure or high blood cholesterol?
• Are you taking any blood pressure or heart medication?
• Do you have a history of breathing problems?
• Do you have symptoms of any disease?
• Are you recovering from a serious illness or medical treatment?
• Do you use a pacemaker or other implanted electronic device?
• Do you smoke?
• Are you pregnant?
Note that in addition to training intensity, medications for heart conditions, blood pressure, psychological con-
ditions, asthma, breathing, etc., as well as some energy drinks, alcohol, and nicotine may also affect heart
rate.
It is important to be sensitive to your body’s responses during training. If you feel unexpected pain or
excessive fatigue when training, it is recommended that you stop the training or continue at a lighter
intensity.
Note! If you are using a pacemaker, you can use Polar products. In theory interference to pacemaker caused
by Polar products should not be possible. In practice no reports exist to suggest anyone ever having exper-
ienced interference. We cannot however issue an official guarantee on our products' suitability with all pace-
makers or other implanted devices due to the variety of devices available. If you have any doubts, or if you
experience any unusual sensations while using Polar products, please consult your physician or contact the
implanted electronic device manufacturer to determine safety in your case.
If you are allergic to any substance that comes into contact with your skin or if you suspect an allergic reaction
due to using the product, check the listed materials in
. To avoid any skin reaction to
the heart rate sensor, wear it over a shirt, but moisten the shirt well under the electrodes to ensure flawless
operation.
The combined impact of moisture and intense abrasion may cause a black color to come off the heart
rate sensor’s surface, possibly staining light-colored clothes. If you use perfume or insect repellent on your
skin, you must ensure that it does not come into contact with the training device or the heart rate sensor.