Study title: RAIS Consortium Experiment

Principal Investigator: Prof. Athena Vakali, School of Informatics, Aristotle University of Thessaloniki

Funding Organisation: Marie Skłodowska-Curie grant agreement Innovative Training Networks (ITN) - RAIS No 813162

Data Controller: Aristotle University of Thessaloniki (AUTh)

Data Protection Officer (DPO):

Names of the coordinators of the research/scientific coordinator:

Aristotle University of Thessaloniki (AUTH), Greece:

  • Athena Vakali, Professor,

  • Stefanos Efstathiou, PhD Candidate (ESR13),

  • Sofia Yfantidou, PhD Candidate (ESR14),

University of Insubria (INSUB), Italy:

  • Ha Xuan Son, PhD Candidate (ESR4),

  • Ahmed Lekssays, PhD Candidate (ESR7),

Foundation for Research and Technology - Hellas (FORTH), Greece:

  • Andrei Kazlouski (ESR 5), PhD Candidate,

  • Thomas Marchioro (ESR 6), PhD Candidate,

Royal Institute of Technology (KTH), Sweden:

  • Lodovico Giaretta, PhD Candidate (ESR3),

  • Susanna Pozzoli, PhD Candidate (ESR8),

  • Debaditya Roy, PhD Candidate (ESR9),

  • Ahmed Emad Samy Yossef Ahmed, PhD Candidate (ESR10), N/A

  • Vangjush Komini, PhD Candidate (ESR12),

University of Cyprus (UCY), Cyprus:

  • Georgios Argyriou, PhD Candidate (ESR1),

  • Ioannis Savvidis, PhD Candidate (ESR2),

  • John Abied Hatem, PhD Candidate (ESR11),

The RAIS Consortium is conducting a research study to explore human behaviors related to physical activity, sleep and stress through wearables data analysis. Here, you will be given information on the project and you will be invited to take part in the study. Your participation is voluntary.

You can talk about this study and the consent form with other people such as family, friends, or whoever you feel comfortable with. You do not have to decide right away. You can decide whether you want to take part in the study after you have put some thought into it. There may be words you do not understand or some things you would like more details for. You can stop anytime and ask questions to the coordinators of the research.

We assume that the way we exercise is affected by a variety of external factors, such as our environment, social activity, and other commitments, as well as by internal factors, such as the characteristics of our personality, and our emotional status.

Wearable and mobile devices can help us measure both our physical activity and some of the aforementioned factors, including stress, sleep, and emotions. The purpose of this research is to review the assumption above through the use of wearable and mobile devices data, so as to fully understand how to develop more efficient applications that encourage the users to adopt an exercise habit and by extension a healthier way of life.

When this experiment ends, the data will get anonymized by the researchers using state-of-the-art techniques, so as not to be related to you. Afterwards the anonymized data will be shared with the scientific community to be used to conduct studies concerning physical activity to advance scientific research in this domain.

The participants of this research should be over 18, live in the E.U, and be literate.

You do not have to take part in the study if you don’t want to. Even if you say “yes” now, you can change your mind later and pull out of the study at any time.

The participation is free of charge.

If you choose to participate in the study:

  • You will receive a Fitbit Sense device which you have to wear for 8 weeks as per the instructions.

  • You will be asked to install the SEMA3 app on your mobile phone for 8 weeks as per the instructions.

  • You will be asked to fill in some questionnaires throughout the research project and answer a few questions on your mobile phone on a daily basis for 8 weeks.

  • You will be asked to extract your wearable’s data from Fitbit’s website in the end of the study and share them with the researchers (you have the option to delete your data from the Fitbit server after the end of the study if you wish). The research coordinators will assist you in the process.

  • 1. Data through integrated sensors of the devices (mobile and wearable)

    • 1.1. Wearable (Fitbit Sense)

      • 1.1.1. Real-time data and historical data

        • Sensor data (heart rate, skin conductance)

        • Physical activity data (type, duration, distance, steps)

        • Sleep data (stages of sleep (deep, light, rem, wake), patterns of sleep (asleep, restless, awake))

        • Stress data

        • User profile (height, weight, length of stride, date of birth, city)

  • 2. Data through daily questions via the EMA application (mobile app) and questionnaires

    • 2.1. Answers related to the emotional status of the user

    • 2.2. Answers related to the physical activity of the user

    • 2.3. Answers related to the personality of the user

  • 3. Optional data from third-party platforms

    • 3.1 User’s location data (Google Timeline)

    • 3.2 Social media data (Facebook, Instagram, Twitter, etc.)

The data from categories 1 and 2 will be kept under a pseudonym until the end of the project, more specifically on 31st December 2022 and afterwards will get anonymized and be kept in a secure server of AUTH.

The data from category 3 (only if they will be provided), will be kept under a pseudonym until the end of the peoject, more specifically on 31st December 2022, and then they will be deleted in a way that they cannot be recovered.

Your personal data will be pseudonymized, meaning that your real name will be replaced by a random number, so as not to be correlated to you. Only the researchers of the study, as mentioned above, will have access to your pseudonymized data.

Your personal data is not intended to be transferred to a third country, or to an international organization which does not comply with the GDPR.

After the end of the project, the data will get anonymized and will be shared with the scientific community. Anonymization ensures that your identity can no longer be inferred.

The participation in this study is absolutely safe, since it does not affect your bodily and mental integrity.

Of course not, the participation in the study is completely harmless.

The usage of your wearable will help you better understand the levels of your physical activity, whereas the participation in the research will provide you with the satisfaction of contributing to the advancement of scientific research.

When the research is finished, we will be able to explain to you everything we have learned. An informational brochure will be available upon your request. Later, we will inform other people about the research we have made and what we have found. This will be accomplished by writing articles and meeting with people that are interested in what we do.

Your participation is not forced. You can stop the research at any time if you wish.

Consent is provided till 31st December 2022 or until it is revoked by sending an e-mail to or by sending the application form enclosed at the end of this document to the address of the coordinator of the research/scientific. The right to withdraw consent at any time does not affect the lawfulness of the processing based on the consent given before its withdrawal.

The processing of your personal data is based on your informed consent to this processing for the specific purpose. Your personal data will be pseudonymized and secured in a computer located in the facilities of AUTH. So as the safety of the data to be ensured, the access to this computer will be allowed only to the researchers of the study by using credentials, whereas all necessary measures shall be taken for the enhancement of the system’s security.

You have the right to request from the Head of the Research access to or rectification or erasure of your personal data or restriction of processing concerning your data or to object to processing as well as the right to data portability. For any enquiry or guidance regarding your rights, you could send an email to or phone at +30-231099.8415. Any change in your personal data will take place within 30 days of your communication with Principal Investigator.

If you have any questions about your personal data and your relevant rights or if you believe that your rights are being violated, you can contact the Data Protection Officer of the Aristotle University of Thessaloniki ( For additional protection you have the right to lodge a complaint with the Hellenic Data Protection Authority (


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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement Innovative Training Networks (ITN) - RAIS No 813162

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For any question or difficulty you may face, feel free to contact us via email.
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