Physical activity, fitness, and all-cause mortality: An 18-year follow-up among old people
Äijö, M., Kauppinen, M., Kujala, U., & Parkatti, T. (2016). Physical activity, fitness, and all-cause mortality: An 18-year follow-up among old people. Journal of Sport and Health Science, 5(4), 437-442. https://doi.org/10.1016/j.jshs.2015.09.008
Julkaistu sarjassa
Journal of Sport and Health SciencePäivämäärä
2016Oppiaine
Gerontologia ja kansanterveysLiikuntalääketiedeGerontology and Public HealthSports and Exercise MedicineTekijänoikeudet
© 2016 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport. This is an open access article under the CC BY-NC-ND license.
Background: Little is known about change in physical activity (PA) and its relationship to all-cause mortality among old people. There is even less
information about the association between PA, fitness, and all-cause mortality among people aged 80 years and above. The objective is to
investigate persistence and change in PA over 5 years as a predictor of all-cause mortality, and fitness as a mediator of this association, among
people aged 80 and 85 years at the beginning of an 18-year mortality follow-up period.
Methods: Using Evergreen Project data (started in 1989), 4 study groups were formed according to self-reported changes in PA level, over a 5-year
period (starting in 1989–1990 and ending in 1994–1995): remained active (RA, control group), changed to inactive (CI), remained inactive (RI), and
changed to active (CA). Mortality was followed up over the 18-year period (1994–2012). Cox models with different covariates such as age, sex, use
of alcohol, smoking, chronic diseases, and a 10 m walking test were used to analyze the association between change in PA level and mortality.
Results: Compared to RA, those who decreased their PA level (CI) between baseline and follow-up had higher all-cause mortality (hazard ratio
(HR = 2.09; 95%CI: 1.63–2.69) when adjusted for age, gender, and chronic diseases. RI showed the highest all-cause mortality (HR = 2.16; 95%CI:
1.59–2.93). In CA, when compared against RA, the risk of all-cause mortality was not statistically significant (HR = 1.51; 95%CI: 0.95–2.38). In
comparison with RA, when walking speed over 10 m was added as a covariate, all-cause mortality risk was almost statistically significant only in
CI (HR = 1.37; 95%CI: 1.00–1.87).
Conclusion: Persistence and change in PA level was associated with mortality. This association was largely explained by fitness status. Randomized
controlled studies are needed to test whether maintaining or increasing PA level could lengthen the life of old people.
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Julkaisija
Elsevier; Shanghai University of SportISSN Hae Julkaisufoorumista
2213-2961Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/25241465
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