Study Protocol on the Validation of the Quality of Sleep Data from Xiaomi Domestic Wristbands

Abstract

(1) Background: Sleep disorders are a common problem for public health since they are considered potential triggers and predictors of some mental and physical diseases. Evaluating the sleep quality of a person may be a first step to prevent further health issues that diminish their independence and quality of life. Polysomnography (PSG) is the “gold standard” for sleep studies, but this technique presents some drawbacks. Thus, this study intends to assess the capability of the new Xiaomi Mi Smart Band 5 to be used as a tool for sleep self-assessment. (2) Methods: This study will be an observational and prospective study set at the sleep unit of a hospital in A Coruña, Spain. Forty-three participants who meet the inclusion criteria will be asked to participate. Specific statistical methods will be used to analyze the data collected using the Xiaomi Mi Smart Band 5 and PSG. (3) Discussion: This study offers a promising approach to assess whether the Xiaomi Mi Smart Band 5 correctly records our sleep. Even though these devices are not expected to replace PSG, they may be used as an initial evaluation tool for users to manage their own sleep quality and, if necessary, consult a health professional. Further, the device may help users make simple changes to their habits to improve other health issues as well. Trial registration: NCT04568408 (Registered 23 September 2020).

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“…The Mi fitness band 5 is a wristband that measures several health parameters including heart rate, steps, stress level and sleep. The band can be connected to the companion, Mi Fit application on a smartphone via Bluetooth [ 34 ].…”

“…Outcome measures included time spent in a walking cadence of 100 steps/min depicting moderate-to-vigorous physical activity, total minutes of sitting time, lying down, standing, and stepping. A minimum of 5 days of activPAL use for a week, including at least one weekend day, provides a reliable estimate of the assessment outcomes [ 34 ].…”

Use of the Xiaomi Mi Band for sleep monitoring and its influence on the daily life of older people living in a nursing home

“… 12 , 45 The choice of this wearable was based on its ease of use and cost 32 Previous studies consider that this wristband reliably measures the number of steps, distance, and duration of sleep, classifying light sleep, deep sleep, and awake time. 25 , 31 The classification total sleep time (TST) data was based on the National Sleep Foundation's sleep duration recommendations: 7–8 ‘hours optimal’; 5–6 ‘less optimal sleep duration’; less than 5 h ‘inadequate sleep duration’; more than 9 h ‘excessive sleep duration’. 46 The classification of the steps followed the following recommendations: >3000 steps/day ‘low level of physical activity’; 3000–8000 steps/days ‘moderate physical activity’; <8000 steps/day ‘intense level of physical activity’.…”

“…Many wearable devices have validation studies, comparing them with PSG, and many others are in process, with previous results showing similarity of the data from these devices with PSG. 24 , 30 , 31 Within the variety of wearable devices, the Xiaomi Mi Band devices are one of the most attractive to the public due to their quality-price ratio. 32 Some research has used this device to measure the health status of different populations.…”

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“…Among others, health and medical services have been radically transformed by the ICT progress over recent decades. In this regard, a pivotal role has been played by health care databases, which contain information about individuals' health and related behaviors [4][5][6][7][8][9][10][11]. ICTs allow continuously and automatically updating administrative databases as soon as an event takes place (the prescription of a drug made by a physician, medical procedures, diagnoses information, records of health services, etc.…”