Actigraphy watch (SOMNOWATCH TM Plus, SOMNO medics, Germany, 2014) was the actigraphy device selected for this study. The participants were requested to wear the actigraphy watch for 7 days for 24 hours a day. The participants were asked to run their daily activities as usual and avoid traveling across time zone during the period of the study. Sleep patterns on weekdays (Sunday to Thursday) and weekends (Friday and Saturday) were also analyzed. Subjects were also provided with the home sleep study (AASM level III) (Somnotouch, Somnomedics, Germany) for one night to exclude obstructive sleep apnea. Actigraphy recordings were manually scored and timing of sleep and wake up was obtained. Nocturnal sleep duration and afternoon siesta were also calculated.
Somnotouch
Manufactured by SOMNOmedics
Sourced in Germany
The Somnotouch is a portable sleep monitoring device designed for clinical and research applications. It measures various physiological parameters such as electroencephalography (EEG), electrooculography (EOG), and electromyography (EMG) to collect data during sleep. The device is intended to be used by healthcare professionals and researchers to assess sleep patterns and disorders.
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Lab products found in correlation
3 protocols using somnotouch
1
Actigraphy and Sleep Monitoring Study
2
Continuous Cardiovascular Monitoring during HDBR
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Measurements were performed using the SOMNOtouch™ (SOMNOmedics®, Randersacker, Germany) at four time points: once at Pre and once at the end of each month of HDBR (M1, M2, and M3). This system allows a beat-by-beat estimation of blood pressure based on the measurement of the pulse transit time (Bilo et al., 2015 (link)).
The SOMNOtouch™ was placed a few hours (0–2 h) before bedtime and was removed the following evening. Brachial blood pressure for calibration was measured using an Omron automatic blood pressure monitor. Cardiovascular variables (R-R interval, SBP, and DBP) and activity (wrist monitor) were recorded continuously for 21 h, from 21:00 to 18:00. The average values per hour were extracted.
To calculate “day” and “night” mean values, the 23:00–05:00 period was considered “night,” and 07:00–17:00 was considered “day.” The 22:00 and 06:00 points were excluded from the averages to avoid artifacts during these transition periods.
The SOMNOtouch™ was placed a few hours (0–2 h) before bedtime and was removed the following evening. Brachial blood pressure for calibration was measured using an Omron automatic blood pressure monitor. Cardiovascular variables (R-R interval, SBP, and DBP) and activity (wrist monitor) were recorded continuously for 21 h, from 21:00 to 18:00. The average values per hour were extracted.
To calculate “day” and “night” mean values, the 23:00–05:00 period was considered “night,” and 07:00–17:00 was considered “day.” The 22:00 and 06:00 points were excluded from the averages to avoid artifacts during these transition periods.
3
Home Sleep Apnea Testing with Somnotouch
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For the home sleep apnea test (HSAT) we used a Somnotouch home sleep testing system (Somnomedics, Germany). Sleep channels included: nasal flow, chest and diaphragm breathing, snoring, heart rate, blood oxygen saturation, activity, body position, and online video recording using a Xiaomi 360 web-camera and portable Wi-Fi card.
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