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Authors
de Pedro-Carracedo, Javier
Fuentes-Jimenez, David
Cabrera-Umpiérrez, María Fernanda
González-Marcos, Ana Pilar
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Article History
Received: 9 December 2024
Accepted: 7 April 2025
First Online: 26 April 2025
Declarations
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: The authors declare no competing interests.
: The data used in this study come from the FIS-PI12/00514 project at the Universidad Politécnica de Madrid (UPM). It was conducted according to the guidelines of the Declaration of Helsinki and approved by the Institutional Review Board (or Ethics Committee) of the UPM (protocol code 2014-16-06 and date of approval 16 July 2014). The study includes 40 students from the UPM between 18 and 30 years old. All signals are captured from the middle finger of the left hand and sampled at a frequency of 250 Hz, say, sampling time ms. The UPM Ethics Committee approved the study protocol. Participants gave their written informed consent. They were instructed to avoid using any psychotropic substance, alcohol or tobacco, avoid physical exercise 24 hours before each session, get up two hours before starting the sessions and consume a light breakfast without coffee or tea.
