Step Count Differences and Body Size
Author Information
Author(s): Jeremy Pomeroy, Søren Brage, Jeffrey M. Curtis, Pamela D. Swan, William C. Knowler, Paul W. Franks
Primary Institution: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Hypothesis
How do step count differences between monitors relate to body size and glucose regulation?
Conclusion
Different step counting monitors yield varying results that can influence the relationship between walking and obesity-related traits.
Supporting Evidence
- The AMP monitor was found to be the most accurate in laboratory tests.
- Step count discrepancies were larger in free-living conditions compared to laboratory settings.
- AX120 step counts were significantly related to waist circumference.
Takeaway
This study shows that different devices for counting steps can give different results, which can affect how we understand walking and health.
Methodology
Participants wore three different step counting monitors for 7 days while their physical activity and glucose tolerance were assessed.
Potential Biases
Potential bias due to the exclusion of participants with diabetes and reliance on self-reported monitor wear.
Limitations
The study only included American Indians aged 20-34 without diabetes, which may limit generalizability.
Participant Demographics
50 participants (25 men and 25 women), aged 20-34, with ≥50% American Indian ancestry.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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