BACKGROUND The aim of this study was to evaluate nocturia severity and nocturia-related differences in sleep, daytime symptoms and functional performance among patients with stable heart failure (HF). METHODS AND RESULTS In this cross-sectional observational study, we recruited 173 patients [mean age 60.3 ± 16.8 years; female n = 60 (35%); mean left ventricular ejection fraction 32 ± 14.6%] w...

A simplified modelling approach to urban commuting patterns is achieved by focusing on daytime populations rather than on commuters, or on the commuting process itself. Whereas past studies were usually economic in nature, and viewed commuting as a process within the continuum of urban space and time, the approach addressing daytime populations transforms the modelling attempt into a demographi...

STUDYOBJECTIVES Daytime sleep has been associated with increased risk of cardiovascular disease and heart failure (HF), but the mechanisms remain unclear. We have investigated the association between daytime and night-time sleep patterns and cardiovascular risk markers in older adults including cardiac markers and subclinical markers of atherosclerosis (arterial stiffness and carotid intima-med...

BACKGROUND Non-invasive ventilation is an established treatment for chronic respiratory failure due to chest wall deformity. There are few data available to inform the choice between volume and pressure ventilators. The aim of this study was to compare pressure and volume targeted ventilation in terms of diurnal arterial blood gas tensions, lung volumes, hypercapnic ventilatory responses, sleep...

OBJECTIVE/BACKGROUND To identify caregiving-related sleep problems and their relationship to mental health and daytime function in female Veterans. PARTICIPANTS Female Veterans (N = 1,477) from cross-sectional, nationwide, postal survey data. METHODS The survey respondent characteristics included demographics, comorbidity, physical activity, health, use of sleep medications, and history of ...

The holiday and school-term sleep patterns of 310 Australian senior school students were surveyed in a longitudinal study, along with self-reported sleep quality, mood, daytime functioning, grades and circadian preference. Evidence was found that with the impact of school schedule, students accrued a significant sleep debt, obtaining insufficient sleep for their needs and reporting lowered mood...

Background—Patients with the sleep apnoea/hypopnoea syndrome (SAHS) report improved sleepiness, cognitive function, and psychological well being after continuous positive airway pressure (CPAP) therapy, and it is for these daytime features that CPAP is usually given. However, few randomised or controlled studies exist on the eVects of CPAP on daytime function. Methods—A prospective, randomised,...

Heart rate variability (HRV) analysis is a commonly used tool for assessment of autonomic function in diabetic subjects. Nevertheless, the effects of glucose fluctuations on HRV remain to be clarified. In this study we investigated the associations of frequency-domain HRV parameters with current and antecedent interstitial glucose fluctuations in insulin-treated type 2 diabetic women at high ca...