Format

Send to

Choose Destination
Intellect Dev Disabil. 2012 Aug;50(4):343-51. doi: 10.1352/1934-9556-50.4.343.

Measuring physical activity with pedometers in older adults with intellectual disability: reactivity and number of days.

Author information

1
Erasmus Medical Center, Department of General Practice, Intellectual Disability Medicine, Rotterdam, the Netherlands. t.hilgenkamp@erasmusmc.nl

Abstract

The minimum number of days of pedometer monitoring needed to estimate valid average weekly step counts and reactivity was investigated for older adults with intellectual disability. Participants (N  =  268) with borderline to severe intellectual disability ages 50 years and older were instructed to wear a pedometer for 14 days. The outcome measure was steps per day. Reactivity was investigated with repeated measures analysis of variance, and monitoring frame was assessed by comparing combinations of days with average weekly step counts (with intraclass correlation coefficients [ICCs] and regression analyses). No reactivity was present. Any combination of 4 days resulted in ICCs of 0.96 or higher and 90% of explained variance. The study concludes that any 4 days of wearing a pedometer is sufficient to validly measure physical activity in older adults with intellectual disability.

PMID:
22861135
DOI:
10.1352/1934-9556-50.4.343
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Allen Press, Inc.
Loading ...
Support Center