Article

OBJECTIVES: To examine the association between the type and amount of physical
activity (PA) and low back pain (LBP) in people aged >/=50 years. DESIGN:
Cross-sectional study. SETTING: A nationwide survey. PARTICIPANTS: Data were
obtained from the Fifth Korea National Health and Nutrition Examination Survey,
which was conducted in 2010 and 2011. Overall, 1796 men and 2198 women aged >/=50
years were included. METHODS: PA was categorized as vigorous, moderate, walking,
strength exercises, or flexibility exercises. The total amount of PA was
presented as quartiles of the total metabolic equivalent (MET)-minutes/week based
on the PA questionnaire. Multivariate logistic regression analysis was performed
to examine associations between LBP and the type and amount of PA. MAIN OUTCOME
MEASUREMENTS: Odds ratio for LBP according to the type of PA and the quartiles of
the total MET-minutes/week. RESULTS: After adjusting for age and body mass index,
vigorous and moderate PA were associated with an increased risk of LBP in both
men and women, whereas strength exercises were associated with a reduced risk of
LBP. These associations were maintained after adjusting for all potential
confounders. Subgroup analysis according to age revealed that these trends were
most significantly demonstrated in women aged >/=65 years. The PA quartiles for
total MET-minutes/week for men showed a U-shaped association with LBP, whereas
only the fourth PA quartile for women showed an increased risk of LBP compared
with the second quartile. CONCLUSIONS: These results suggest that both the type
and amount of PA affect the development of LBP in people aged >/=50 years and
thus activity modification might be helpful for prevention and management of LBP.
CI - Copyright (c) 2014 American Academy of Physical Medicine and Rehabilitation.
Published by Elsevier Inc. All rights reserved.

Langue : ANGLAIS