Fight Aging! Newsletter, November 27th 2017

We examined associations between mortality and accelerometer-measured PA using age-relevant intensity cutpoints in older women of various ethnicities.

The results support the hypothesis that higher levels of accelerometer-measured PA, even when below the moderate-intensity threshold recommended in current guidelines, are associated with lower all-cause and CVD mortality in women aged 63 to 99. Our findings expand on previous studies showing that higher self-reported PA reduces mortality in adults aged 60 and older, specifically in older women, and at less than recommended amounts. Moreover, our findings challenge the conclusion of recent meta-analyses that MVPA, measured by to self-report, is required to offset mortality risk in adults.

First, absolute rates of all-cause and cardiovascular disease mortality were at least 50% lower in cohort members in the middle tertile of each PA exposure than in those in the lowest tertile. This is particularly impressive when considering the small mean differences between these tertiles of 50 minutes/day for low light-intensity PA, 33 minutes/day for high light-intensity PA, and 20 minutes/day for MVPA. Use of accelerometers enhanced accurate quantification of such small differences in usual daily PA, which is not possible using questionnaire assessments. Small increases in daily PA, which older adults can achieve, could have a substantial effect on mortality in later life. Even in the oldest cohort members, ages 80-89 and â‰...

Source: Fight Aging! - November 26, 2017 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs