Accelerometer counts and energy expenditure during walking in healthy adults with and without ID

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Background: We investigated the usability of accelerometers to measure the intensity of walking in individuals with and without ID, by analyzing the relationship between accelerometer counts and the measured energy expenditure.

Method: Our study included 36 participants, among whom 17 were healthy adults with mild-moderate ID. Energy expenditure and accelerometer counts were measured during three separate 6-minute-walking bouts (over ground comfortable walking speed, and 3.2 km/h and 4.8 km/h on a treadmill).

Results: No significant correlations were found between accelerometer counts and energy expenditure relative to body weight in either group for any of the speeds (P > 0.05).

Conclusion: This study used a standardized, reproducible method of evaluating energy expenditure in adults with ID and a control group and compared it to accelerometer counts. We did not find any correlations between accelerometer counts and energy expenditure in either group, potentially due to large variability in both outcome variables. Future research is needed with a larger sample size, to determine the validity of physical activity measurement in individuals with ID.
Original languageEnglish
Article number5876
Pages (from-to)542-542
JournalJournal of Applied Research in Intellectual Disabilities
Issue number4
Publication statusPublished - Jul 2018

Bibliographical note

The research leading to these results has received funding from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007–2013) under REA grant agreement no. °625455


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