Research Database


Parameterizing and validating existing algorithms for identifying out-of-bed time using hip-worn accelerometer data from older women

  • Published on April 24, 2019

Objective To parameterize and validate two existing algorithms for identifying out-of-bed time using 24 h hip-worn accelerometer data from older women. Approach Overall, 628 women (80  ±  6 years old) wore ActiGraph GT3X+  accelerometers 24 h d−1 for up to 7 d and concurrently completed sleep-logs. Trained staff used a validated visual analysis protocol to measure ...


New-onset insomnia among cancer patients undergoing chemotherapy: prevalence, risk factors, and its correlation with other symptoms

  • Published on April 23, 2019

Study objectives Although insomnia is common among cancer patients, its prevalence remains variable, and its risk factors and correlation with other cancer-related symptoms are not fully explored in the literature. This study aims to determine the prevalence and severity of insomnia as well as risk factors and sleep-related symptom clusters ...


0944 A Comparison Of Medical-grade Actigraphy Devices With Polysomnography During Inpatient Rehabilitation For Traumatic Brain Injury (TBI)

  • Published on April 12, 2019

Introduction Sleep disturbances in TBI population can have negative consequences on physical, psychological and cognitive recovery. While polysomnography (PSG) is the gold standard for evaluating sleep disorders, actigraphy has been widely used to screen for sleep-wake disorders, especially ones that change longitudinally. In a small sample of TBI patients (n=50, ...


Protocol for a cross sectional study of cancer risk, environmental exposures and lifestyle behaviors in a diverse community sample: the Community of Mine study

  • Published on February 13, 2019

Background Physical inactivity and unhealthy diet are modifiable behaviors that lead to several cancers. Biologically, these behaviors are linked to cancer through obesity-related insulin resistance, inflammation, and oxidative stress. Individual strategies to change physical activity and diet are often short lived with limited effects. Interventions are expected to be more ...


Telecommunication devices use, screen time and sleep in adolescents

  • Published on April, 2019

Purpose To investigate the association between telecommunication and other screen devices use and subjective and objective sleep measures in adolescents at 17–18 years. Methods Cross-sectional study on adolescents aged 17–18 years from a Spanish population-based birth cohort established in Menorca in 1997–1998. Information on devices use was collected using self-reported questionnaires. Mobile Phone ...



Relationship between sleep disturbance and self-care in adults with type 2 diabetes

  • Published on June 21, 2018

Aims: Type 2 diabetes (T2D) is a metabolic disorder requiring intensive self-care to maintain optimal glycemic control. Sleep disturbance is common in T2D patients and likely impairs glycemic control. Our aim was to examine the relationship between sleep disturbance and self-care in adults with T2D. Methods: This study ...


Differences in sleep between concussed and nonconcussed college students: a matched case–control study

  • Published on 17 Nov, 2018

Study Objectives: To describe sleep 2–3 days postconcussion through symptom recovery and make comparison to well-matched nonconcussed controls. Methods: Twenty college students were physician diagnosed with a concussion and compared with 20 nonconcussed controls matched on age, sex, physical activity, and sleep quality. A wrist-worn ActiGraph GT9X Link was provided during ...


Effect of intradialytic exercise on daily physical activity and sleep quality in maintenance hemodialysis patients

  • Published on Jan 23, 2018

Purpose: Physical inactivity and sleep disturbance are frequently observed and relate to poor clinical outcomes in maintenance hemodialysis patients. We aimed to investigate the effect of intradialytic exercise on daily physical activity and sleep quality, measured by an accelerometer, in maintenance hemodialysis patients. Methods: This study randomly assigned ambulatory maintenance ...