BELL Therapeutics Inc. — Biomedical Watch V2

Traitements2programmes

Essais1liés

Publications0liées

SourceDBlocale

Traitements

2

Molécule	Indication / population	Phase	Objectif	Pays	Résultat
Smartphone simultaneous facial and fingertip photoplethysmography (research app)This study examines how accurately a smartphone can measure the rhythmic rise and fall of heart rate that occurs with breathing (respiratory heart rate variability). Healthy adult volunteers attend one laboratory visit of about 90 minutes in Seoul, Republic of Korea. While seated, each participant breathes freely for 5 minutes, then follows audio-guided breathing at seven slow rates between 4 and 7 breaths per minute in random order and finally at 15 breaths per minute, with 2-minute rests between conditions (31 minutes of recording and 16 minutes of rest). During every condition, a single iPhone measures the face with its front camera (contact-free measurement) and a fingertip lightly placed over its rear camera lens (contact measurement) at the same time; no video is stored. A chest ECG and a respiratory belt record continuously throughout the session as references. The main question is how closely the breathing-related heart rate variability amplitude measured from the face agrees with the ECG during slow paced breathing. The study also compares the fingertip measurement with the ECG, reports how often the smartphone measurements fail to produce a usable value, evaluates standard heart rate variability measures, and explores whether shorter recordings would give similar agreement and how breathing rate affects agreement. The smartphone app is a research prototype used only for data collection. This study does not test a treatment, and its measurements are not used to diagnose or treat participants.	Maladie coronarienne	Non applicable	À vérifier	South Korea	À vérifier
Smartphone simultaneous facial and fingertip photoplethysmography (research app)This study examines how accurately a smartphone can measure the rhythmic rise and fall of heart rate that occurs with breathing (respiratory heart rate variability). Healthy adult volunteers attend one laboratory visit of about 90 minutes in Seoul, Republic of Korea. While seated, each participant breathes freely for 5 minutes, then follows audio-guided breathing at seven slow rates between 4 and 7 breaths per minute in random order and finally at 15 breaths per minute, with 2-minute rests between conditions (31 minutes of recording and 16 minutes of rest). During every condition, a single iPhone measures the face with its front camera (contact-free measurement) and a fingertip lightly placed over its rear camera lens (contact measurement) at the same time; no video is stored. A chest ECG and a respiratory belt record continuously throughout the session as references. The main question is how closely the breathing-related heart rate variability amplitude measured from the face agrees with the ECG during slow paced breathing. The study also compares the fingertip measurement with the ECG, reports how often the smartphone measurements fail to produce a usable value, evaluates standard heart rate variability measures, and explores whether shorter recordings would give similar agreement and how breathing rate affects agreement. The smartphone app is a research prototype used only for data collection. This study does not test a treatment, and its measurements are not used to diagnose or treat participants.	Maladie coronarienne	Non applicable	À vérifier	South Korea	À vérifier

Essais cliniques

1

Molécule	Indication / population	Phase	NCT	Titre	Statut
Smartphone simultaneous facial and fingertip photoplethysmography (research app)	Maladie coronarienne	Non applicable	NCT07922161	Smartphone Camera Measurement of Breathing-Related Heart Rate Variability Compared With ECG in Healthy Adults	NOT_YET_RECRUITING

Publications

0

Molécule	Indication / population	Titre	Journal	Date
Aucune publication.