Abstract
This study examined the associations between the occurrence of osteoporotic fractures in detailed sites and combined physical activity (PA) and sunshine duration (SD). Data from the Korean National Health Insurance Service—National Health Screening Cohort for 7-year periods and from the Korea Meteorological Administration were used. Osteoporotic fractures (n = 12,103), including vertebral fractures, hip fractures, and distal radius fractures, and matched controls (n = 24,206) were selected in 1:2 ratios by age, sex, income, and region of residence. PA was classified as moderate- to high-intensity PA (High PA) and low-intensity PA (Low PA). SD was classified as Short SD (<6.1 h) and Long SD (≥6.1 h). Conditional logistic regression was used to calculate the odds ratios (ORs) with 95%-confidence intervals (CIs) of the combined PA and SD groups for the occurrence of each osteoporotic fracture. Compared to ‘Low PA + Short SD’, the adjusted ORs (95% CIs) for vertebral fracture in ‘High PA + Short SD’ and ‘High PA + Long SD’ were 0.83 (0.76–0.91) and 0.84 (0.77–0.92), respectively. Hip/distal radius fractures were not associated with the combined PA and SD group. We suggest that a higher intensity of PA is inversely associated with the risk of vertebral fracture.
Highlights
Accepted: 20 January 2022Physical inactivity is one of the major health problems worldwide
The rate of long sunshine duration (SD) was relatively lower in the vertebral fracture group (48.8% (3344/6858) vs. 49.6% (6804/13,716); sd = 0.02) and in the distal radius fracture group (50.0% (2075/4149) vs. 50.3% (4175/8298); sd = 0.01) and higher in the hip fracture group (53.4% (585/1096) vs. 51.1% (1119/2192); sd = 0.05) than in each matched control group (Table 1)
We found that a lower occurrence of vertebral fracture was associated with ‘High physical activity (PA) + Short SD’ and ‘high-intensity PA (High PA) + Long SD’
Summary
Physical inactivity is one of the major health problems worldwide. For the COVID-19 pandemic, physical activity (PA) is recommended for severe COVID-19 infection itself [1], and for physical and mental disorders [2]. PA is restricted due to the possible spread of infection [3]. The trend for PA was to change to home-based personal PA or outdoor leisure PA [2]. Outdoor PA could increase sun exposure, which improves vitamin D status in the body. Both PA and sun exposure are effective in improving musculoskeletal conditions, especially increasing bone mineral density (BMD) [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
