Method for acquiring and processing heart rate data comprises the steps of: • Providing at least one pair of glasses (1) comprising a microcontroller (1 1), at least one heart rate sensor (12) positionable against an anatomic area of a user, at least one configuration memory (102), at least one data memory (103), a clock/calendar electronic circuit (104), at least one visual and/or audible signalling unit (13), at least one rechargeable autonomous electrical power supply source (14), and at least one switch for at least switching on/off the heart rate detection function. • Providing at least one programming and data transfer unit (100) external to the glasses (1) • Providing at least one connection system (101) between glasses (1) and external programming and data transfer unit ( 100) • Programming the configuration memory (102) of the glasses (1) by means of said external programming and data transfer unit (100), with at least a minimum heart rate threshold value, a maximum heart rate threshold value, and a heart rate reading frequency value • Acquiring a plurality of readings in the data memory ( 103 ) of the glasses (1) during an activity in which the user wears the glasses (1), wherein each reading comprises a detected heart, rate value and the corresponding time of detection • Processing, in real time during said activity, by means of the visual and/or audible signalling unit (13), at least one alarm signal when the current reading comprises a detected heart rate value that is not below the maximum heart rate threshold or not above the minimum heart rate threshold.L'invention concerne un procédé d'acquisition et de traitement de données de fréquence cardiaque, qui comprend les étapes suivantes : • la fourniture d'au moins une paire de lunettes (1) comprenant une micro-unité de commande (11), au moins un capteur de fréquence cardiaque (12) pouvant être positionné contre une région anatomique d'un utilisateur, au moins une mémoire de configuration (102), au moins
