Abstract
National physical activity and health guidelines now recommend regular moderate intensity exercise (3.0–6.0 METs) to reduce the risk of several chronic diseases. The aim of this project was to determine the reliability and precision of energy expenditure (EE) measurement for self-paced household and garden chores. We therefore measured in duplicate EE at rest, whilst walking and performing four household activities in 12 female subjects ( ± SD; 39.9 ± 3.2 yr, 75.9 ± 16.4 kg, 163.8 ± 6.6 cm) via indirect calorimetry. Moderate-paced walking was used as a marker of exercise intensity for comparison with the household activities. The results are presented below: The intraclass correlation coefficients (ICCs) and technical errors of measurement (%TEM) show that the EE of these household and garden chores can be measured with a high degree of reliability and precision in our hands. These data challenge the convention of using 3.5 ml.kg−1.min−1 as an index of RMR, and hence the accuracy of tables of MET values for common activities. This research was supported by the National Health and Medical Research Council of Australia.Table
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