Titre :
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Effect of body mass index and physical exercise on risk of knee and hip osteoarthritis : longitudinal data from the Norwegian HUNT Study. (2012)
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Auteurs :
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Paul JARLE MORK ;
HOLTERMANN (Andreas) : DNK. National Research Centre for the Working Environment. Copenhagen. ;
Tom IVAR LUND NILSEN
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Type de document :
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Article
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Dans :
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Journal of epidemiology and community health (vol. 66, n° 8, 2012)
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Pagination :
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678-683
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Langues:
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Anglais
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Mots-clés :
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Activité physique
;
Facteur risque
;
Risque
;
Genou
;
Arthrose
;
Hanche
;
Norvège
;
Europe
;
Arthropathie
;
Maladie dégénérative
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Résumé :
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[BDSP. Notice produite par INIST-CNRS R0xnrjBE. Diffusion soumise à autorisation]. Background Mechanical joint stress imposed by high body mass index (BMI) is associated with increased risk of knee and hip osteoarthritis. This prospective study investigated the independent and joint association of BMI and physical exercise on risk of knee and hip osteoarthritis. Methods The study includes 15191 women and 14 766 men in the Norwegian HUNT Study without pain or physical impairment at baseline. Occurrence of self-reported physician-diagnosed osteoarthritis was assessed at 11 years of follow-up. Results BMI was positively related to risk of knee osteoarthritis (Ptrend0.34). Exercise intensity was not associated with risk of osteoarthritis in any BMI category ; that is, obese persons reporting high-intensity exercise had an RR of 1.28 (95% CI 0.59 to 2.79) for severe osteoarthritis compared with inactive persons. Conclusion High BMI increases the risk of knee osteoarthritis and severe osteoarthritis. Physical exercise does not increase the risk of osteoarthritis at any level of BMI, suggesting that exercise could be encouraged also among individuals with excessive body mass, without concern for an increased risk of osteoarthritis.
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