Association between device-measured physical activity and lumbar Modic changes
Julin, Marella Modarress; Saukkonen, Jesperi; Oura, Petteri; Niemelä, Maisa; Junno, Juho-Antti; Määttä, Juhani; Niinimäki, Jaakko; Jämsä, Timo; Korpelainen, Raija; Karppinen, Jaro (2020-09-25)
Modarress Julin, M., Saukkonen, J., Oura, P. et al. Association between device-measured physical activity and lumbar Modic changes. BMC Musculoskelet Disord 21, 630 (2020). https://doi.org/10.1186/s12891-020-03638-y
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https://urn.fi/URN:NBN:fi-fe2020111690664
Tiivistelmä
Abstract
Background: Modic changes (MC) in the lumbar spine are considered one potential etiological factor behind low back pain (LBP). Multiple risk factors for MC have been suggested, including male gender, smoking and factors affecting hyperloading and mechanical stress such as high body mass index (BMI), strenuous physical work and high occupational and leisure-time physical activity (PA). So far, the effect of PA on the occurrence of MC has remained under debate due to contradictory findings. The purpose of this study was to investigate the possible association between device-measured moderate-to-vigorous PA (MVPA) (≥ 3.5 METs) and lumbar MC.
Methods: The study had 1374 participants from the Northern Finland Birth Cohort 1966. At the age of 46–48, PA was measured by a wrist-worn accelerometer, and lumbar magnetic resonance imaging (MRI) was carried out to determine MC. We analyzed the association between Type 1 (MC1) and Type 2 (MC2) MC and daily amount of MVPA (min/day) using sex-stratified logistic regression models before and after adjustment for BMI, socioeconomic status, smoking, and accelerometer wear time.
Results: Among men, increased amount of MVPA was positively associated with any MC (adjusted OR corresponding to every 60 min/day of MVPA 1.41; 95% confidence interval (CI) 1.01 to 1.95) and MC2 (OR 1.54; 95% CI 1.14 to 2.08), but not with MC1 (OR 1.06; 95% CI 0.80 to 1.39). Among women, we only found a positive association between MVPA and MC1 before adjustments (unadjusted OR 1.42; 95% CI 1.06 to 1.92).
Conclusions: Among men, increased amount of MVPA was associated with increased odds of any MC and particularly MC2. Among women, MVPA was not independently associated with MC.
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