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- Title
EXPLORING THE CHALLENGES OF OBTAINING OBJECTIVELY MEASURED PHYSICAL ACTIVITY DATA FROM PRE-MENOPAUSAL WOMEN.
- Authors
O'Brien, Wendy J.; Shultz, Sarah P.; Firestone, Ridvan T.; George, Lily; Breier, Bernhard H.; Kruger, Rozanne
- Abstract
Background: Physical activity-based health improvement initiatives required good quality, objectively measured physical activity data, however various challenges undermine the acquisition of such data. Aim: To examine the efficacy and challenges of a standard hip-worn accelerometry protocol conducted in pre-menopausal New Zealand women. Specific objectives included determining rates of compliance, and understanding the barriers, burdens and acceptability associated with wearing accelerometers. Methods: Healthy New Zealand women (n=406) of three ethnicities (Māori, Pacific, European) aged 16-45 y (30.9 ±8.7 y) wore hip-mounted Actigraph wGT3X+ accelerometers for seven consecutive days, removing only during water activities. Post-hoc, a sub-sample (n=45; age: 29.4 ±9.0 y) was interviewed to investigate the comfort/convenience and burdens of wearing accelerometers. Results: Wear compliance (≥10 hr/day, ≥4 days) was 86%. European women returned more valid data (92.7%, p<0.04) than Pacific (73.0%) or Māori (82.1%) women. Data were completely missing for 22 participants (5.4%). Burden from accelerometer wear was greatest during sleeping (66.7%) due to discomfort. High burden in social settings (45.2%) resulted from visibility of accelerometers through clothing and restricted clothing choices. Conclusions: Discomfort during sleeping, restricted clothing choices and embarrassment in social settings, and ethnicity are key factors affecting the efficacy of collecting physical activity data from New Zealand women using hip-worn accelerometers. Refining accelerometer design to improve comfort and acceptability, and increasing participant engagement by ensuring appropriate understanding of study relevance should improve wearcompliance and data quality, and reduce attrition in hip-worn accelerometry protocols.
- Subjects
PERIMENOPAUSE; ACCELEROMETERS; ATTRITION in research studies
- Publication
New Zealand Journal of Sports Medicine, 2017, Vol 44, Issue 1, p37
- ISSN
0110-6384
- Publication type
Abstract