Browsing by Subject "Sleep quality"

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Sedentary behavior, sleep, quality of life, and subjective memory function in middle-aged and older adults
(2020-08-11) Chen, Yen Tzu, Ph. D.; Castelli, Darla M. 1967-; Holahan, Carole K.; Pasch, Keryn E; Whittaker, Tiffany
Sedentary behavior (SB) has been associated with poor health outcomes. Middle-aged and older adults often spend more time in SB compared to younger adults. Little is known about the association of SB with health-related quality of life (HRQOL) and subjective memory function. Poor sleep quality is also prevalent among middle-aged and older adults. However, no known study has examined the mediating role of sleep quality in the association of SB with HRQOL and subjective memory function. Study 1 examined the relationship between objective measurement of SB and HRQOL. Cross-sectional analyses included 1,353 US middle-aged and older adults from the 2005-2006 National Health and Nutrition Examination Survey. The results showed that higher SB percentage was significantly associated with poor general health, more physically unhealthy days, and more activity limitation days. However, SB hours related to better general health and fewer physically unhealthy days. Neither SB percentage nor SB hours were related to mentally unhealthy days. Sleep quality mediated the association of SB percentage to general health, physically unhealthy days, and mentally unhealthy days. Study 2 identified different types of SB and examined their separate associations with HRQOL and subjective memory function. Cross-sectional analyses recruited 363 US middle-aged adults from Amazon MTurk. Exploratory factor analysis categorized ten different sedentary activities into Common Engaging SB, High Engaging/Leisure SB, and Less Engaging/Passive SB. Findings suggested that Common Engaging SB was adversely associated with HRQOL and subjective memory function, whereas High Engaging/Leisure SB was positively related to HRQOL, but not subjective memory function. Further, sleep quality appeared to mediate the association of Common Engaging SB and High Engaging/Leisure SB to HRQOL. Future research should examine these associations by conducting longitudinal studies and comparing objective and subjective measurements of SB. Moreover, objective measurements of sleep quality, HRQOL, and memory performance are needed to eliminate recall bias associated with self-reported data. Reducing sitting time, particularly Common Engaging SB, could be a useful strategy by which to improve HRQOL and subjective memory function. Health promotion programs might help to promote mentally engaging activities because such activities might increase individuals’ HRQOL. Interventions are needed to raise public awareness regarding the importance of sleep quality
Sleep: effect on dementia caregiver mastery, perceived stress and depression
(2010-05) Simpson, Cherie Elizabeth; Carter, Patricia A.; Acton, Gayle; Becker, Heather; Lopez, Martita; Volker, Deborah
Caregiving for a dementia patient is a stressful experience and can last for years. The exposure to stress over time can lead to negative health outcomes in caregivers (e.g. depression) and can decrease their ability to provide care. Caregivers need resources such as good sleep quality and mastery to have the physical, emotional, and mental energy to perform the caregiving role. The purpose of this study was to explore the relationships between the resources of sleep quality, mastery, and the outcomes of perceived stress, and depression in informal caregivers of community-dwelling persons with dementia (PWD). The data presented were from a cross-sectional non-experimental study with interviews conducted with 80 informal caregivers of PWD utilizing a demographic questionnaire for the caregiver, an assessment of the frequency of behavior and psychiatric symptoms (BPSD) of dementia, the Dementia Severity Rating Scale to assess the caregiver’s perception of the PWD’s cognitive and functional abilities, the Pittsburgh Sleep Questionnaire to asses the caregiver’s sleep, a combined global and domain-specific mastery instrument, the Perceived Stress Scale and the Center for Epidemiologic Depression Scale to measure outcomes. The results of this study found that male and female caregivers shared a similar caregiving experience, similar levels of mastery, depression, and stress but, female caregivers had poorer sleep than male caregivers. Caregivers experienced a higher rate of sleep disruptions by the PWD than previous studies and these disruptions were related to poorer perceived sleep quality and poor global sleep. There was a direct relationship between mastery and perceived stress, mastery and depression, sleep quality and stress, sleep quality and depression, but not a statistically significant relationship between mastery and sleep quality in this sample. Sleep quality was not found to have an indirect effect on stress or depression through mastery. The contribution of these findings to nursing knowledge is the establishment of the direct relationship between sleep quality and stress, and mastery and stress to be considered in future intervention research. Further exploration is needed to understand the relationship of mastery and sleep quality.