Risk Factors for Bone Loss in Patients Having Clinical Conditions That Restrict Physical Activity.
OBJECTIVE
The purpose of this study was to identify the effect of sleep duration, depression, and other factors on the risk for low bone mineral density (BMD) in patients having physical restrictions due to chronic obstructive pulmonary disease, cardiovascular disease, stroke, or asthma.


METHODS
A cross-sectional survey.


METHODS
The 2008-2011 Korea National Health and Nutrition Examination Survey assesses sociodemographic, physiological, and behavioral factors, including depression and sleep duration. The records of 512 individuals were examined in the present survey.


RESULTS
Among men, absence of a depressive mood was associated with greater lumbar spine BMD, and among women, adequate sleep duration was associated with greater lumbar spine BMD.


CONCLUSIONS
This study of individuals having restricted physical activity due to a respiratory or circulatory problem indicated that men without depression and women with adequate sleep had greater BMD.


CONCLUSIONS
Interventions that improve sleep duration and provide a stable psychological state may help to prevent declines of BMD in this population.
College of Nursing, Research Institute of Nursing Science, Kyungpook National University, Daegu, South Korea.
Myung Kyung
MK
Lee
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density / Q000502:physiology*; D003430:Cross-Sectional Studies; D003863:Depression / Q000150:complications / Q000209:etiology; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D019145:Rehabilitation Nursing; D056910:Republic of Korea; D012307:Risk Factors; D012890:Sleep / Q000502:physiology; D011795:Surveys and Questionnaires