scholarly journals Sleep Tracking of a Commercially Available Smart Ring and Smartwatch Against Medical-Grade Actigraphy in Everyday Settings: Instrument Validation Study (Preprint)

2020 ◽  
Author(s):  
Milad Asgari Mehrabadi ◽  
Iman Azimi ◽  
Fatemeh Sarhaddi ◽  
Anna Axelin ◽  
Hannakaisa Niela-Vilén ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Poor Sleep ◽  
Sample Population ◽  
Sleep Monitoring ◽  
Daily Routines ◽  
Home Based ◽  
Significant Difference ◽  
Sleep Parameters ◽  
The Mean ◽  
Mean Differences

BACKGROUND Assessment of sleep quality is essential to address poor sleep quality and understand changes. Owing to the advances in the Internet of Things and wearable technologies, sleep monitoring under free-living conditions has become feasible and practicable. Smart rings and smartwatches can be employed to perform mid- or long-term home-based sleep monitoring. However, the validity of such wearables should be investigated in terms of sleep parameters. Sleep validation studies are mostly limited to short-term laboratory tests; there is a need for a study to assess the sleep attributes of wearables in everyday settings, where users engage in their daily routines. OBJECTIVE This study aims to evaluate the sleep parameters of the Oura ring along with the Samsung Gear Sport watch in comparison with a medically approved actigraphy device in a midterm everyday setting, where users engage in their daily routines. METHODS We conducted home-based sleep monitoring in which the sleep parameters of 45 healthy individuals (23 women and 22 men) were tracked for 7 days. Total sleep time (TST), sleep efficiency (SE), and wake after sleep onset (WASO) of the ring and watch were assessed using paired <i>t</i> tests, Bland-Altman plots, and Pearson correlation. The parameters were also investigated considering the gender of the participants as a dependent variable. RESULTS We found significant correlations between the ring’s and actigraphy’s TST (<i>r</i>=0.86; <i>P</i>&lt;.001<i>)</i>, WASO (<i>r</i>=0.41; <i>P</i>&lt;.001), and SE (<i>r</i>=0.47; <i>P</i>&lt;.001). Comparing the watch with actigraphy showed a significant correlation in TST (<i>r</i>=0.59; <i>P</i>&lt;.001). The mean differences in TST, WASO, and SE of the ring and actigraphy were within satisfactory ranges, although there were significant differences between the parameters (<i>P</i>&lt;.001); TST and SE mean differences were also within satisfactory ranges for the watch, and the WASO was slightly higher than the range (31.27, SD 35.15). However, the mean differences of the parameters between the watch and actigraphy were considerably higher than those of the ring. The watch also showed a significant difference in TST (<i>P</i>&lt;.001) between female and male groups. CONCLUSIONS In a sample population of healthy adults, the sleep parameters of both the Oura ring and Samsung watch have acceptable mean differences and indicate significant correlations with actigraphy, but the ring outperforms the watch in terms of the nonstaging sleep parameters.

scholarly journals Sleep Tracking of a Commercially Available Smart Ring and Smartwatch Against Medical-Grade Actigraphy in Everyday Settings: Instrument Validation Study

10.2196/20465 ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. e20465
Author(s):  
Milad Asgari Mehrabadi ◽  
Iman Azimi ◽  
Fatemeh Sarhaddi ◽  
Anna Axelin ◽  
Hannakaisa Niela-Vilén ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Poor Sleep ◽  
Sample Population ◽  
Sleep Monitoring ◽  
Daily Routines ◽  
Home Based ◽  
Significant Difference ◽  
Sleep Parameters ◽  
The Mean ◽  
Mean Differences

Background Assessment of sleep quality is essential to address poor sleep quality and understand changes. Owing to the advances in the Internet of Things and wearable technologies, sleep monitoring under free-living conditions has become feasible and practicable. Smart rings and smartwatches can be employed to perform mid- or long-term home-based sleep monitoring. However, the validity of such wearables should be investigated in terms of sleep parameters. Sleep validation studies are mostly limited to short-term laboratory tests; there is a need for a study to assess the sleep attributes of wearables in everyday settings, where users engage in their daily routines. Objective This study aims to evaluate the sleep parameters of the Oura ring along with the Samsung Gear Sport watch in comparison with a medically approved actigraphy device in a midterm everyday setting, where users engage in their daily routines. Methods We conducted home-based sleep monitoring in which the sleep parameters of 45 healthy individuals (23 women and 22 men) were tracked for 7 days. Total sleep time (TST), sleep efficiency (SE), and wake after sleep onset (WASO) of the ring and watch were assessed using paired t tests, Bland-Altman plots, and Pearson correlation. The parameters were also investigated considering the gender of the participants as a dependent variable. Results We found significant correlations between the ring’s and actigraphy’s TST (r=0.86; P<.001), WASO (r=0.41; P<.001), and SE (r=0.47; P<.001). Comparing the watch with actigraphy showed a significant correlation in TST (r=0.59; P<.001). The mean differences in TST, WASO, and SE of the ring and actigraphy were within satisfactory ranges, although there were significant differences between the parameters (P<.001); TST and SE mean differences were also within satisfactory ranges for the watch, and the WASO was slightly higher than the range (31.27, SD 35.15). However, the mean differences of the parameters between the watch and actigraphy were considerably higher than those of the ring. The watch also showed a significant difference in TST (P<.001) between female and male groups. Conclusions In a sample population of healthy adults, the sleep parameters of both the Oura ring and Samsung watch have acceptable mean differences and indicate significant correlations with actigraphy, but the ring outperforms the watch in terms of the nonstaging sleep parameters.

Nocturnal serum melatonin levels in sulfur mustard exposed patients with sleep disorders

2017 ◽  
pp. jramc-2016-000677
Author(s):  
Seyyedeh Soghra Mousavi ◽  
E Vahedi ◽  
M Shohrati ◽  
Y Panahi ◽  
S Parvin
Keyword(s):  
Sleep Quality ◽  
Sulfur Mustard ◽  
Pulmonary Function Tests ◽  
Critical Role ◽  
Poor Sleep ◽  
Poor Sleep Quality ◽  
Respiratory Disorders ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
The Mean

BackgroundSulfur mustard (SM) exposure causes respiratory disorders, progressive deterioration in lung function and mortality in injured victims and poor sleep quality is one of the most common problems among SM-exposed patients. Since melatonin has a critical role in regulation of sleep and awareness, this study aimed to evaluate the serum melatonin levels in SM-injured subjects.MethodsA total of 30 SM-exposed male patients and 10 controls was evaluated. Sleep quality was evaluated by the Pittsburgh Sleep Quality Index (PSQI); daytime sleepiness was measured by the Epworth Sleepiness Scale (ESS), and the risk of obstructive sleep apnoea was determined by the STOP-Bang questionnaire. Polysomnography (PSG) and pulmonary function tests (PFTs) were also available. Nocturnal serum melatonin levels were measured using an ELISA kit.ResultsThe mean of PSQI, ESS and STOP-Bang scores in patients (11.76±3.56, 12.6±3.03 and 5.03±1.09, respectively) were significantly (p<0.01) higher than those in the controls (2.78±0.83, 4.69±1.15 and 1.18±0.82, respectively). PFTs also showed declined respiratory quality in SM-patients. There was a significant difference regarding the PSG results between patients and controls (p<0.01). The mean of nocturnal serum melatonin levels in patients (29.78±19.31 pg/mL) was significantly (p=0.005) lower than that in the controls (78.53±34.41 pg/mL).ConclusionsReduced nocturnal serum melatonin and respiratory disorders can be the reasons for poor sleep quality among these patients.Trial registration numberIRCT2015092924267N1, Pre-results.

scholarly journals Improved urinary melatonin level as the perspective indicator that leads to better sleeping quality in bladder cancer patients

2020 ◽  
Vol 12 ◽  
pp. 175628722094087
Author(s):  
Tse-Chou Cheng ◽  
Yi-Hua Lee ◽  
Yuan-Ping Chang ◽  
De-Chih Lee
Keyword(s):  
Bladder Cancer ◽  
Sleep Quality ◽  
Cancer Patients ◽  
Rank Test ◽  
Melatonin Level ◽  
Poor Sleep ◽  
Melatonin Concentration ◽  
Significant Difference ◽  
Before And After ◽  
The Mean

Background: Individuals with higher-than-average melatonin concentrations are less likely to develop cancer. In cancer patients, psychosomatic coping patterns and treatment side effects are important indicators of cancer prevention and immune system deterioration. This study focused on changes in the urinary melatonin concentration, life resilience, and sleep quality in bladder cancer patients before, and 3 months after, treatment. Methods: A controlled before-and-after study was performed. The subjects were patients who were previously diagnosed with bladder cancer and had received treatment (transurethral resection of bladder tumor + intravesical chemotherapy). Data from 23 subjects were analyzed. Results: The results showed a significant difference in the melatonin concentration before and after treatment (Wilcoxon signed-rank test, Z = −2.220, p = 0.026). The melatonin concentration in 16 patients (70%) increased after treatment. The mean Pittsburgh Sleep Quality Index (PSQI) score before treatment was 7.348 (SD = 4.030), which was associated with poor sleep quality. The mean PSQI score after treatment was 6.435 (SD = 3.300; Z = −2.071; p = 0.038). These results represent the improved sleep quality in patients post-treatment. Conclusions: After treatment, the urinary melatonin concentration and sleep quality (PSQI) improved, both of which were statistically significant in bladder cancer patients. Consequently, bladder cancer treatment should be initiated as soon as possible. There was no significant difference in overall life resilience before and after treatment, possibly because elderly individuals have strong personality traits and emotional stability and are not easily affected by life events or stress.

scholarly journals Sleep quality among a sample of Egyptian truck drivers

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
M Yosef ◽  
M A Abdelhamid ◽  
W Salaheldin ◽  
M Elhabiby ◽  
M Rady
Keyword(s):  
Sleep Quality ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Truck Drivers ◽  
Poor Sleep ◽  
Road Traffic Accidents ◽  
Poor Sleep Quality ◽  
Significant Difference ◽  
Hours Of Work ◽  
The Mean

Abstract Background “Road traffic accidents” is a major health problem and it is significantly related to the mean daily sleep hours and sleep quality. This study aims to explore the sleep quality among a group of Egyptian truck drivers. Methodology A convenience sample of 117 male truck drivers working on Cairo – Suez highway was selected. Socio-demographic and occupational history were collected using an interview questionnaire and the Pittsburgh sleep quality index (PSQI) was calculated. Results The mean age of the studied drivers was 38.7 ± 9.7 y, 82.1% were married and 79.5% were current smokers. The mean driving hours per day was 15.35 ± 4.77, the mean sleeping hours per day was 5.8 ± 2.3 and 48 drivers (41%) had poor sleep quality according to the cutoff 5 for PSQI questionnaire. There was a significant difference between drivers with good vs poor sleep quality regarding number of cigarettes smoked per day, hours of work per day and mean distance travelled per day. Multivariate logistic regression showed that hours of work per day was the only significant predictor with poor sleep quality. Among drivers with poor sleep quality 16.3% reported having accidents in the past year which was significantly higher (p = 0.016) than those who had good sleep quality (2.9%), Odds Ratio: 6.4, 95% CI; 1.3-31.8. Conclusion Poor sleep quality is associate with increased risk of road traffic accidents among the studied truck drivers and the main factor that affect sleep quality is the number of working hours per day.

scholarly journals The relationship between sleep quality and dyspnoea severity in patients with COPD

2020 ◽  
Vol 20 (4) ◽  
pp. 1785-92
Author(s):  
Emine Kaplan Serin ◽  
Emine Derya Ister ◽  
Ahmet Ozdemir
Keyword(s):  
Sleep Quality ◽  
Poor Sleep ◽  
Copd Patients ◽  
Significant Difference ◽  
The Mean ◽  
One Year ◽  
The Individual ◽  
The Relationship ◽  
Keywords Dyspnoea ◽  
Severe Dyspnoea

Objectives: This study aimed to determine sleep quality, frequency and severity of dyspnoea in COPD patients and to eval- uate the relationship between dyspnoea severity and sleep quality. Method: The sample of the study consisted of 110 patients admitted to the Chest Diseases polyclinic of a private hospital and diagnosed as COPD for at least one year. The data of the study were collected using the "Individual Information Form", "COPD and Asthma Sleep Scale (CASIS)" and "Medical Research Council (MRC) Dyspnoea Scale”. Results: It was found that 6.4% of the patients did not experience dyspnoea, 34.5% had mild, 40.9% had moderate, and 18.2% had severe dyspnoea. The mean CASIS score of the patients without dyspnoea was 29.08±7.83, with mild dyspnoea was 40.22±9.30, with moderate dyspnoea was 50.31±8.97 and with severe dyspnoea was 56.96±13.13. There was a statisti- cally significant difference between dyspnoea severity and mean CASIS score (p=0.001). Correlation analysis between MRC dyspnoea scale and CASIS score showed a significant positive correlation (r=0.61 p=0.001). Conclusion: It was concluded that the majority of COPD patients had moderate or poor sleep quality and dyspnoea. As dyspnoea severity increases, sleep quality decreases. Keywords: Dyspnoea; COPD; Sleep.

644 Sleep Quality in Intensive Care Unit Patients with Advanced Heart Failure

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A252-A252
Author(s):  
Elizabeth Edmiston ◽  
Mary Dolansky
Keyword(s):  
Heart Failure ◽  
Sleep Quality ◽  
Sleep Hygiene ◽  
Mean Difference ◽  
Poor Sleep ◽  
Poor Sleep Quality ◽  
Post Discharge ◽  
Time Points ◽  
Significant Difference ◽  
The Mean

Abstract Introduction Around 75% of Americans with heart failure (HF) report poor sleep quality, a much higher percentage than the general population. This is especially concerning since poor sleep quality is associated with poor cardiac event-free survival. Persons with HF are hospitalized often and between 10–51% of those hospitalized are admitted to an intensive care unit ICU. Poor sleep quality is a common complaint in ICU with over 50% of patients rating sleep quality as poor to very poor. The purpose of the study was to evaluate changes in sleep quality in persons with advanced HF who were admitted to an ICU. Methods Persons with advanced HF admitted to ICU were recruited into this pilot study (age 29–89). Using the Pittsburgh Sleep Quality Index, self-reported sleep quality was assessed at three time points: pre-admission, during hospitalization, and post-discharge. Scores greater than five indicated poor sleep quality. A Repeated Measures Analysis of Variance (RMANOVA) test compared means from the same participant over time for sleep quality (N=22). Results At baseline, 93% of participants reported poor sleep, 90% during hospitalization, and 86% post-discharge. A significant difference among the three time points was found [F (2, 42) =5.341; p&lt;.01]. The mean sleep quality score pre-admission was 11.77 and SD=3.69, during hospitalization M=12.27 and SD=3.65, and post-discharge M=9.32 and SD=4.56. The mean difference of sleep quality pre-admission and sleep quality during hospitalization was not significant. However, the mean difference of sleep quality pre-admission and sleep quality post-discharge was significant (Mean difference=2.46; p&lt;.05). Also, a significant difference in sleep quality during hospitalization and post-discharge was found (Mean difference=2.96; p&lt;.05). Conclusion The number of participants who reported poor sleep during hospitalization was much larger than previously reported in the literature. Also, participants reported significantly better sleep quality post-discharge than pre-admission and during hospitalization. Furthermore, this population may be vulnerable for poor sleep due to symptom severity prior to hospital admission, diuretic use, and poor sleep hygiene. Implementation of sleep hygiene strategies are needed during hospitalization to promote sleep and to teach sleep hygiene self-management. Support (if any):

scholarly journals Effectiveness of Home-Based Occupational Therapy on COPM Performance and Satisfaction Scores in Patients with COPD

2020 ◽  
pp. 000841742097112
Author(s):  
Eleonore H. Koolen ◽  
Martijn A. Spruit ◽  
Marianne de Man ◽  
Jeanine C. Antons ◽  
Elieke Nijhuis ◽  
...  
Keyword(s):  
Occupational Therapy ◽  
Integrated Management ◽  
Performance Measure ◽  
Occupational Performance ◽  
Post Intervention ◽  
Canadian Occupational Performance Measure ◽  
Home Based ◽  
Copd Patients ◽  
The Mean ◽  
Mean Differences

Background. Occupational therapy (OT) may be an important intervention in patients with COPD, but studies show conflicting results. Purpose. To evaluate the effectiveness of home-based monodisciplinary OT in COPD patients Method. We conducted an observational clinical study. Main outcomes were the mean differences in the Canadian Occupational Performance Measure (COPM) performance and satisfaction scores, pre and post intervention. Findings. Pre- and postintervention data were obtained from 41 patients. Statistically significant increases were observed in COPM performance (5.0 ± 1.1 versus 6.9 ± 0.9; P<0.001) and satisfaction (4.6 ± 1.3 versus 6.9 ± 1.0; P<0.001). The most frequently reported occupational performance problems were found in the domains of productivity (47%) and mobility (40%), fewer in self-care (10%) and the least in leisure (3%). Implications. Home-based monodisciplinary OT can contribute significantly to the improvement of daily functioning of patients with COPD. OT should therefore be considered more often as part of the integrated management of these patients.

Burden of Care and Its Relationship with Sleep Quality of Cancer Patients’ Caregivers

2021 ◽  
Author(s):  
Mohammadreza Boostaneh ◽  
Mohammad Zirak ◽  
Ramezan Fallah
Keyword(s):  
Sleep Quality ◽  
Cancer Patients ◽  
Poor Sleep ◽  
Burden Of Care ◽  
Quality Of Sleep ◽  
Study Results ◽  
Northwest Of Iran ◽  
The Mean ◽  
Convenience Sampling

Abstract Purpose: This study aimed to assess the burden of care and its relationship with sleep quality of cancer patients’ caregivers.Methods: This descriptive-correlational study was conducted in a referral center of cancer in Zanjan, northwest of Iran. 135 caregivers of cancer patients were recruited through convenience sampling method. The data were collected using a demographic characteristics questionnaire, Novak and Guest’s caregiver burden inventory and Pittsburgh sleep quality index (PSQI). The collected data was analyzed using descriptive and inferential statistics.Results: The mean (± SD) age of the participants was 39.71 (± 10.74) years. The mean (± SD) burden of care and sleep quality of the participants was 45.22 (± 17.75) and 8.88 (± 4.21), respectively. It was found that there is a significant positive relationship between burden of care and quality of sleep scores (r = 0.65, P < 0.001).Conclusion: cancer patients’ caregivers endure a remarkable burden of care and their sleep quality is undesirable. Results indicated that an increase in the burden of care reduces the caregiver’s quality of sleep. High burden of care and poor sleep quality may reduce the quality of the provided care that increase the costs and weakens the disease prognosis. According to the study results, reducing burden of care is an effective strategy regarding improving the caregivers’ quality of sleep that can improve the quality of provided cares by caregivers.

142 Prenatal Sleep Quality and Infant Sleep: A Longitudinal Study

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A58-A59
Author(s):  
Rebecca Burdayron ◽  
Marie-Helene Pennestri ◽  
Elizabeth Keys ◽  
Lianne Tomfohr-Madsen ◽  
Gerald Giesbrecht
Keyword(s):  
Sleep Quality ◽  
Sleep Duration ◽  
Gestational Age ◽  
Sleep Onset ◽  
Depression Scale ◽  
Future Research ◽  
Poor Sleep ◽  
Infant Sleep ◽  
Maternal Sleep ◽  
Sleep Parameters

Abstract Introduction Poor sleep quality is common during pregnancy and can increase the risk of adverse obstetric and fetal outcomes. Existing research on the association between prenatal sleep and infant sleep is scarce and has focused on other aspects of prenatal sleep such as sleep duration, chronotype, and insomnia symptoms. To our knowledge, no studies have examined the association between prenatal sleep quality and infant sleep outcomes. Thus, this study aimed to investigate whether maternal sleep quality during pregnancy was prospectively associated with infant sleep dimensions, independent of relevant covariates. Methods Participants were a subset of 272 mother-infant dyads enrolled in an ongoing cohort study. Maternal prenatal sleep quality was assessed with the Pittsburgh Sleep Quality Index (PSQI) in early to mid- (M gestational age = 15.12 ± 3.56 weeks) and late- (M gestational age = 32.44 ± 0.99 weeks) pregnancy. Mothers completed the Brief Infant Sleep Questionnaire (BISQ) at 3, 6, and 12 months postpartum. The following infant sleep parameters were assessed: sleep duration (day, night, 24-hour), number of night awakenings, and wake after sleep onset. Prenatal depressive symptoms were assessed with the Edinburgh Postnatal Depression Scale (EPDS) at both pregnancy time points. Other covariates included maternal age at enrollment, infant age, parity, and co-sleeping status. Results Generalized estimating equations (GEE) models revealed that poorer maternal sleep quality during early-to-mid pregnancy did not significantly predict infant sleep parameters after adjustment for covariates (p &gt; .05). However, in late pregnancy, poorer maternal sleep quality significantly predicted shorter 24-hour sleep duration and longer wake after sleep onset, but not daytime sleep duration, nighttime sleep duration, and number of night awakenings (p &lt; .05). Conclusion Study findings advance our understanding of the prospective link between maternal prenatal sleep quality and infant sleep. Results indicate that maternal sleep quality during late gestation may play a role in the development of infant sleep patterns. These findings have important implications for intervention efforts targeting maternal sleep quality during pregnancy. Future research should use objective measures of sleep, such as actigraphy, to better elucidate the effects of prenatal sleep quality on infant sleep outcomes. Support (if any) The Canadian Institutes of Health Research (CIHR)

scholarly journals Circadian variation of fatigue in both patients with paralytic poliomyelitis and post-polio syndrome

2013 ◽  
Vol 71 (7) ◽  
pp. 442-445 ◽  
Author(s):  
Celiana Figueiredo Viana ◽  
Márcia Pradella-Hallinan ◽  
Abrahão Augusto Juviniano Quadros ◽  
Luis Fabiano Marin ◽  
Acary Souza Bulle Oliveira
Keyword(s):  
Standard Deviation ◽  
Sleep Disturbances ◽  
Circadian Variation ◽  
Progressive Increase ◽  
Paralytic Poliomyelitis ◽  
Poor Sleep ◽  
Poor Sleep Quality ◽  
Significant Difference ◽  
Sleep Parameters

ObjectiveIt was to evaluate the degree of fatigue in patients with paralytic poliomyelitis (PP) and with post-polio syndrome (PPS), and correlate it with parameters of sleep and the circadian cycle.MethodsThirty patients, 17 female (56.7%), participated in the study: they answered the Revised Piper Fatigue Scale and performed a nocturnal polysomnographic study. Eleven had PP (mean age±standard deviation of 47.9±6.4 years), and 19 had PPS (mean age±standard deviation of 46.4±5.6 years).ResultsOur study showed that fatigue was worse in the afternoon in the PP Group and had a progressive increase throughout the day in the PPS Group. We also observed compromised quality of sleep in both groups, but no statically significant difference was found in the sleep parameters measured by polysomnography.ConclusionFatigue has a well-defined circadian variation, especially in PPS Group. Poor sleep quality is associated with fatigue and, therefore, sleep disturbances should be evaluated and treated in this group of PPS.

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