The Impact of Sleep Quality on Osteoporosis
Osteoporosis is a condition of decreased bone mass making it fragile and more susceptible to fracture. It is known to affect more than ten million people and more than one million fractures in the United States alone.
Shiel WC conducted a cross-sectional, cohort study to assess the impact of sleep on osteoporosis using a baseline examination of the Hiroshima Sleep and Healthcare study. The study included 1032 participants (25−85 years of age) in total who underwent health examinations and addressed the association of sleep habits and lifestyle-related diseases. T Sleep habits, including its timing (bed time), quantity (time in bed [TIB]), and quality were estimated using the Pittsburgh Sleep Quality Index (PSQI). Quantitative ultrasound systems was used to measure the bone stiffness index (SI), a marker of osteoporosis.
Significant correlation was observed for bed time (r=0.065, P<0.05), TIB (r=−0.064, P<0.05), and global PSQI score (r=−0.126, P<0.0001) with SI. Multiple regression analyses unveiled that after adjusting for age, sex, body mass index, smoking, and alcohol intake, the global PSQI score (β=−0.053, P<0.05) was significantly related with SI, but bed time or TIB was not. Among each component of PSQI, sleep disturbances (β=−0.084, P<0.005) were importantly associated with SI.
It was culminated that the poor sleep quality may be associated with osteoporosis. Specially, increased sleep disturbances as a key factor in the poor sleep quality.