Abstract: The invention relates to Nozzle, comprising a liquid inlet channel (LIN) for water or other liquid, the liquid inlet channel having an exit mouth (LINM) for letting liquid out from the liquid inlet channel, a pressurized air inlet channel (AIN) having an exit mouth (AINM) for letting pressurized air out from the pressurized air inlet channel (AIN). In the invention the liquid inlet channel (LIN) and pressurized air inlet channel (AIN) are positioned in such way that the pressurized air inlet channel (AIN) at least partially surrounds the liquid inlet channel (LIN) so as to create mist from exiting liquid and exiting pressurized air.

Abstract: The invention relates to Nozzle, comprising a liquid inlet channel (LIN) for water or other liquid, the liquid inlet channel having an exit mouth (LINM) for letting liquid out from the liquid inlet channel, a pressurized air inlet channel (AIN) having an exit mouth (AINM) for letting pressurized air out from the pressurized air inlet channel (AIN). In the invention the liquid inlet channel (LIN) and pressurized air inlet channel (AIN) are positioned in such way that the pressurized air inlet channel (AIN) at least partially surrounds the liquid inlet channel (LIN) so as to create mist from exiting liquid and exiting pressurized air.

Abstract: The invention provides a heart rate monitor, a method and a computer software product. The method determines from the user's electrocardiogram a reference value of a heart rate variable characterizing the heart rate; determines at least one environmental parameter value obtainable from air pressure using air pressure measurement; associates the reference value of the heart rate variable with at least one environmental parameter value; and records in a register at least one environmental parameter value and the reference value of the heart rate variable associated with the at least one environmental parameter value.

Abstract: A method of monitoring a human relaxation level and a user-operated heart rate monitor are provided. The user-operated heart rate monitor comprises a timing instant determining means for determining a plurality of heart beat timing instants from a user's electrocardiogram; a relaxation calculating means for calculating an instantaneous relaxation measure value by using the plurality of heart beat timing instants; a relaxation reference calculating means for generating a relaxation measure reference value by using a plurality of instantaneous relaxation measure values, each calculated over a different observation period; and a displaying means configured to display a reference pointer indicating graphically the relaxation measure reference value and further configured to display a relaxation pointer indicating graphically the instantaneous relaxation measure value relative to the reference pointer.

Abstract: The invention relates to a sensor (42) placed on the skin, which can advantageously be integrated in a garment and has a contact layer in contact with the skin containing conductive fibres for receiving signals and a moisture retentive moisture layer (41) on top of the contact layer.

Abstract: The invention relates to an arrangement for coding heart rate information, comprising means (600A, 600B) for measuring a person's heart beat intervals and means for storing (648) the measured heart beat interval information. The arrangement comprises means (654) for coding the heart beat interval information stored in the storing means (648) into music, the coding means comprising means (660) for selecting the rhythm of the music on the basis of the measured heart beat intervals.

Abstract: The invention relates to a method and an electronic device for implementing the method for measuring mental load. The electronic device generates at least two different cognitively loading tasks for the person participating in the measurement, the first task determining a reference level and at least one other task determining the loading capacity level. The electronic device determines the pulse parameters of the person participating in the measurement during the cognitively loading tasks. The electronic device also compares the pulse parameters during the different tasks with each other. Finally, the electronic device generates a value descriptive of the mental load of the person participating in the measurement on the basis of the comparison of the pulse parameters.

Abstract: A method and arrangement for estimating a stress level dependent parameter on a person that measures a person's heart rate, calculates a derivative of the measured heart rate, and estimates a value for a stress level dependent parameter by using the calculated heart rate derivative.

Abstract: The invention relates to a portable personal data processing device, such as a wrist-worn measuring device, a heart rate monitor, a subscriber terminal of a radio system, or a sports watch. The device includes a temperature sensor for measuring the ambient temperature and a humidity sensor for measuring the ambient humidity. Furthermore, dependence information, which defines temperature values of the dew points corresponding to the humidity values, is stored in the device. The control unit is configured to monitor the change rate of the measured temperature, to determine, on the basis of the change rate, the moment at which the temperature reaches the temperature value of the dew point corresponding to the measured humidity on the basis of the dependence information, and to provide a forecast on fog appearance in relation to the moment employing the user interface.

Abstract: A wrist-worn device comprising a display for showing a heart rate parameter value, such as a heart rate measured from a person's body or a heart rate variable derived from the heart rate. The display comprises at least two display areas which display areas the wrist-worn device is arranged to employ to show that a heart rate parameter momentarily belongs to a heart rate parameter value range corresponding to the display area and which wrist-worn device comprises at least one sliding means for selecting a desired heart rate parameter value range by mechanically sliding the sliding means to cover at least one display area at a time.

Abstract: The invention relates to an electrode structure and a heart rate measuring arrangement for measuring an ECG signal on the skin of a person's chest. The electrode structure (100) comprises a band-like component (101) that is fitted against the skin (102) of the person's chest and that is made of soft and flexible material that follows the skin closely. At the ends of the electrode structure (100) there are electrodes (118, 122). The inner surface (116) of the electrode structure is an adhesive surface for attaching the electrode structure (100) on the skin (102) of the person's chest.

Abstract: An electrode structure for measuring an ECG signal on a person's skin. The electrode structure (100) to be arranged on the person's finger (102) comprises an inner surface (116) residing against the finger (102), which inner surface (116) of the electrode structure (100) comprises an inner surface electrode (118), the electrode structure (100) further comprising an outer surface (120) opposite to the inner surface (116), which outer surface (120) of the electrode structure (100) comprises an outer surface electrode (122) to be arranged against a point on the person's skin other than said finger (102) having the electrode structure (100) arranged thereon, the electrode structure being arranged to measure a potential difference caused by the ECG signal between a first electrode and a second electrode.

Abstract: A heart rate measuring arrangement for controlling a recovery exercise of a person from a fitness exercise which measures the heart rate, forms control information, and displays the formed control information so that the recovery exercise is performed at a controlled heart rate level.

Abstract: A bicycle which comprises as force transmission equipment a chain for transmitting the muscular strength of a person pedaling the bicycle from the person to the bicycle for the purpose of moving the bicycle, characterized in that the chain has a vibration transducer which is arranged to vibrate at a resonance frequency proportional to the force transmitted by the chain, and the bicycle comprises a reading device separate from the chain for reading the resonance frequency of the vibration transducer, to which reading device calculation means are connected for calculating the force affecting the chain on the basis of the resonance frequency.

Abstract: A wrist-worn device (100) comprising a background plate (106) to be illuminated for a display (102) of the wrist-worn device (100), and a light source (108A, 108B) for illuminating the background plate (106). The wrist-worn device (100) comprises a guide chamber (300, 302) at least partly surrounding the light source for collecting light emitted by the light source (108A, 108B) and for directing it to the background plate (106).

Abstract: The invention presents a system for confirming a performer of a fitness exercise. The system includes a heart rate monitor (104) for measuring heart rate parameters (404A to 404N) associated with the fitness exercise from the heart rate of the performer. The system also includes a mathematical model (406) including dependence information between heart rate parameters (404A to 404N) and classes classifying the performer in classes (402A to 402N) such as age or weight. Heart rate parameter data measured from the performer and information in the mathematical model are utilized in identifying the performer of the fitness exercise.

Abstract: The invention relates to a measuring arrangement for measuring a pressure signal from a living body. The measuring arrangement comprises a sensor structure comprising a converter for converting the effect of the pressure signal measured from the body into an electrical signal. The measuring arrangement of the invention comprises a pressure transmission structure prior to the converter in the sensor structure, the pressure transmission structure comprising one or more pressure transmission elements. The pressure transmission structure is, through one or more pressure transmission elements, meant to be in direct or indirect contact with the body for detecting the pressure signal measurable from the body.

Abstract: The invention relates to a screen (300), which is particularly intended for a functional unit measuring heart rate from a user's chest. Electrodes (304) of the functional unit and preferably also an electric circuit (306) are protected against extracorporeal interference by the screen (300), which closely follows the electrode (304) or a supporting structure (40, 50, 60, 70) at least at the electrode (104, 204, 304, 402, 502, 602, 702).

Abstract: The invention relates to an ECG electrode structure suitable for use in water during swimming, for example, and to a method for measuring an ECG signal from a person who is in water. To measure a difference in potential (304), the ECG electrode structure comprises a first measurement electrode (502) arranged to be in contact with an area of the skin (202) on a user's body such that, when in use, the electrode is electrically insulted (510) from the water (108), and a second measurement electrode (300). When in use, the second measurement electrode (300) is arranged to be in contact only with the water (108), the second measurement electrode (300) thus being in contact through the water with an area of the person's body other than the area under the first measurement electrode (502).

Abstract: The invention relates to a method and an apparatus for identifying a heartbeat. In the method, an arterial pressure signal is measured in the form of multichannel measurement, and the required signal-processing operations, such as filtration, are carried out if necessary. The method also comprises carrying out signal detection and decision-making concerning the acceptance as a heartbeat signal. According to the invention, the signal detection includes multichannel channel-specific detection for the purpose of identifying signal components of different channels, and the obtained channel-specific detected channel signals are used as input data during the decision-making stage.