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each other, the distance between them should be at least 1.5 m. Similarly, if there is only one receiver and several transmitters in use, only one person with a transmitter should be within transmission range. The transmitter is switched to an active state only when it is being used for measurement. Sweat and other moisture can, however, keep the transmitter in an active state and waste battery energy. Therefore it is important to dry the electrodes carefully after use. When selecting training attire, please note that some ? bers used in clothes (e.g. polyester, polyamide) create static electricity, which may prevent reliable heart rate measurement. Please note that a mobile phone, television and other electrical appliances form an electromagnetic ? eld around them, which will cause problems in heart rate measurement. First ? nd your maximum heart rate i.e. where the rate doesn’t increase with added effort. If you don’t know your maximum heart rate, please use the following formula as a guide: 220 - AGE These are average values and the maximum varies from person to person. The maximum heart-rate diminishes on average by one point per year. If you belong to a risk group, ask a doctor to measure your maximum heart rate for you. We have de? ned three different heart-rate zones to help you with targeted training. BEGINNER: 50-60 % of maximum heart-rate Also suitable for weight-watchers, convalescents and those who haven’t exercised for a long time. Three sessions a week of at least a half-hour each is recommended. Regular exercise considerably improves beginners’ respiratory and circulatory performance and you will quickly feel your improvement. TRAINER: 60-70 % of maximum heart-rate Perfect for improving and maintaining ?...