Abstract: An apparatus, a method and a computer program product for providing audio guidance during exercise are disclosed. The apparatus comprises one or more sensors to measure sensor data related to an exercise session of a user; a loudspeaker; and one or more processors to cause performance of operations comprising: receiving the sensor data measured during the exercise session from the one or more sensors; playing an audio stream via the loudspeaker to the user during the exercise session; generating an audio guidance message based on the sensor data; determining a future time instant during a future playing period of the audio stream for outputting the audio guidance message; and interrupting the playing of the audio stream at the future time instant and outputting the audio guidance message via the loudspeaker to the user.

Abstract: There is provided a method in a collector device of a physiological performance measurement system, which includes: broadcasting a timing signal on a predetermined radio channel; receiving a data packet from each of a plurality of peripheral devices configured to perform measurements with respect to one or more users and to transmit physiological measurement data on the one or more users to the collector device, wherein the data packet indicates a clock value of the respective peripheral device as a response to the broadcasting the timing signal; and synchronizing data streams from the plurality of peripheral devices with each other based on the indicated clock values. A respective method is described for the peripheral device.

Abstract: A wearable body composition measurement system includes: a sensor device including a first measurement circuitry configured to measure body composition; a second measurement circuitry configured to measure heart activity; and a strap arranged to attach the sensor device around a torso of a user; at least one processor coupled with the sensor device; and at least one memory storing a computer program code configured to cause the at least one processor to perform operations comprising: in a first measurement mode wherein the sensor device is attached around an abdominal area of the user, receiving body composition measurement data measured by the first measurement circuitry, computing a quantity of fat tissue in the abdominal area on the basis of the received body composition measurement data, and outputting the quantity of fat tissue via an interface; and in a second measurement mode wherein the sensor device is attached around a chest of the user, receiving heart activity measurement data from the second meas

Abstract: A solution for measuring a cardiogram of a user is disclosed. According to an aspect, a portable training computer includes a communication circuitry including a radio frequency antenna and configured to transmit a radio frequency signal through the antenna, a measurement circuitry coupled to the antenna and configured to measure an electric property of the antenna, and at least one processor configured to, in a first measurement mode, detect presence of an object in proximity with the antenna on the basis of the measured electric property, and in a second measurement mode, detect motion of a body of a user of the portable training computer with respect to the antenna on the basis of the measured electric property and compute a cardiogram of the user in the basis of the detected motion.

Abstract: A solution for proximity detection of an object is disclosed. According to an aspect, there is provided a portable training computer, including a communication circuitry configured to operate according to Bluetooth technology; a radio frequency radiator circuitry coupled to the communication circuitry and configured to receive transmission signals from the communication circuitry and radiate the transmission signals as transmission bursts; a measurement circuitry coupled to the radio frequency radiator circuitry and configured to measure an electric property of the radio frequency radiator circuitry and to determine proximity of an object with respect to the radio frequency radiator circuitry on the basis of the measured electric property; and a controller configured to synchronise measurement timings of the measurement circuitry with the transmission bursts.

Abstract: A garment is made of flexible material that includes a first measurement electrode integrated into the garment at a first location, a second measurement electrode integrated into the garment at a second location different from the first location, and a measurement circuitry configured to measure bioimpedance by using the first measurement electrode and the second electrode and to transmit the measured bioimpedance and to measure electrocardiogram by using at least one of the first measurement electrode and the second electrode or another electrode. The garment is an upper body garment, in which the first measurement electrode is disposed above a heart level and the second measurement electrode is disposed below the heart level.

Abstract: A wearable heart activity sensor device includes a substrate of optically transparent material arranged to face a skin of a user when the sensor device is worn by the user, at least one light emitting diode, LED, arranged on the substrate and arranged to emit light through the substrate, at least one photo sensor arranged on the substrate as spatially separated from the at least one LED and arranged to absorb light through the substrate, wherein the at least one LED and the at least one photo sensor are included in a photoplethysmogram sensor of the heart activity sensor device, and an overmold of thermoplastic material covering the at least one light emitting diode, the at least one photo sensor and a space between the at least one light emitting diode and the at least one photo sensor.

Abstract: A system and method pairs devices in a gym environment. The system includes: a server computer; a plurality of data collector devices, each of the plurality of data collector devices being associated with a gym device or an exercise spot of a gym, wherein each data collector device includes a wireless communication unit, and a memory configured to store training data of a user; one or more time-of-flight positioning units configured to be disposed at fixed locations in the gym and conduct time-of-flight positioning; one or more mobile tag devices, each mobile tag device comprising a time-of-flight positioning unit configured to conduct the time-of-flight positioning together with the time-of-flight positioning units at the fixed locations; and one or more wearable devices, wherein each wearable device is associated with one of the one or more mobile tag devices.

Abstract: A watch strap includes a substantially inflexible main portion, a flexible auxiliary portion coupled to the substantially inflexible main portion, and a tightener coupled to the flexible auxiliary portion. When in use, the tightener is configured to maintain a selected tightness, and the flexible auxiliary portion is configured to be elastic.

Abstract: A wearable training computer includes a global navigation satellite system (GNSS) antenna arrangement configured to provide a group of antenna configurations for receiving a GNSS signal, wherein each antenna configuration provides different radio frequency properties. The wearable training computer further includes a measurement circuitry configured to measure performance of the GNSS antenna and a processing circuitry configured to select, based on at least an activity type of a user of the wearable training computer, a subset of the antenna configurations from the group of the antenna configurations, and further configured to select, from the subset of the antenna configurations based on the measured GNSS antenna performance, an antenna configuration for receiving the GNSS signal.

Abstract: An apparatus includes the following: a photoplethysmogram sensor head including a light emitter and a photo detector, wherein the photo detector is disposed in a diagonal orientation with respect to a light path from the light emitter to the light detector; and an opaque mask over the photo detector, wherein the mask covers at least partially that half of the photo detector that is at a greater distance from the light emitter and leaves a remaining half of the photo detector exposed.

Abstract: A system for monitoring muscle load, is configured to perform operations including: obtaining, from at least one sensor, measurement data on an exerciser; determining, based on the measurement data, a number of repetitions of a macroscopic movement performed during a physical exercise; determining, based on a conversion entry corresponding to a type of the physical exercise, muscle load coefficient of one or more muscles loaded in the physical exercise; utilizing the muscle load coefficient of the one or more muscles and the number of repetitions in determining muscle load data indicating muscle specific muscle load caused by the physical exercise performed by the exerciser; and outputting the muscle load data.

Abstract: A method, apparatus, and computer program monitor a user's heart activity during a physical exercise. A heart activity measurement signal representing the user's heart activity is acquired and a phase component of the heart activity measurement signal is monitored. On the basis of the monitoring of the phase component, one or more actions are carried out.

Abstract: A computer-implemented method for adapting a training program of a user, including: storing a database including measurement data of physical exercises the user has performed, the measurement data including at least one of heart activity measurement data and motion measurement data; receiving a user input to select a weekly template for the training program, the weekly template including a training schedule including a plurality of pre-programmed repeating exercises on the weekly template; receiving a user input indicating a repeating exercise the user indicates to perform outside the training program; acquiring, from the database on the basis of the user input indicating the repeating exercise, measurement data of past one or more physical exercises of the repeating exercise; determining, on the basis of the measurement data, a training effect of the past one or more physical exercises and determining at least one repeating physical exercise of the training schedule providing a training effect closest to the

Abstract: A watch strap includes a substantially inflexible main portion, a flexible auxiliary portion coupled to the substantially inflexible main portion, and a tightener coupled to the flexible auxiliary portion. When in use, the tightener is configured to maintain a selected tightness, and the flexible auxiliary portion is configured to be elastic.

Abstract: A cardiac activity measurement assembly for a sports equipment handle and the handle is disclosed, wherein the assembly includes an optical cardiac activity sensor configured to measure cardiac activity of a user, and an attachment element for floatingly attaching the optical cardiac activity sensor to a handle of sports equipment in order to reduce pressure on a measuring head of the sensor caused by a skin contact between the measuring head and at least one finger or a palm of the user when gripping the handle.