[ 21 ] found that the inverse relationship between physical activity and mobility limitation showed a trend, but was not significant, when the odds ratio of moderately vigorous activity related to mobility limitation was adjusted for the presence of chronic disease.
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Physical activity and functional limitations in older adults: a systematic review related to Canada's Physical Activity Guidelines.
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[ 21 ] reported the trend (after adjustment for chronic disease) was marginally non-significant.
Although two studies [ 26 , 27 ] showed a significant trend across activity levels only one study [ 27 ] suggested a significant effect for a light or low physical activity group.
The physical activity programme resulted in higher physical performance scores; and this study used the 400 m walk as an indicator for mobility disability finding that there was a lower incidence of the inability to complete the walk in the physical activity group versus an educational control group, with an odds ratio of 0.71 approaching significance in this pilot data.