Title: Comparison of 2 Accelerometers for Assessing Daily Energy Expenditure in Adults
Abstract:Background: Daily energy expenditure (EE) assessment plays an important role in clinical strategies for lifestyle-related diseases. The purpose of this study was to compare the performance of 2 activi...Background: Daily energy expenditure (EE) assessment plays an important role in clinical strategies for lifestyle-related diseases. The purpose of this study was to compare the performance of 2 activity monitors from different manufacturers to estimate total energy expenditure (TEE) and physical activity related-energy expenditure (PAEE) in daily living conditions. Methods: Sixteen adults stayed in a respiratory chamber for 24 h. The subjects wore 2 accelerometers based on uniaxial (Lifecorder; UNI) and triaxial accelerometry (Tritrac-R3D; TRI). Results: A highly significant correlation was observed between measured TEE and estimated values (r=0.868 in UNI and r=0.819 in TRI; P <0.001). However, TEE and PAEE were significantly underestimated: TEE UNI by -9% and TEE TRI by -12%; PAEE UNI by -10% and PAEE TRI by -55%. Conclusions: The EE of structured activity was adequately estimated by both accelerometers, whereas the EE of the non-structured activities involved much more errors. The results also suggest that the algorithm for EE calculation may be more important than the number of planes used for detecting acceleration.Read More
Publication Year: 2004
Publication Date: 2004-07-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 15
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