The accuracy of the TriTrac-R3D accelerometer to estimate energy expenditure

Article Abstract:

Using the TriTrac-R3D accelerometer to estimate energy expenditure during exercise has limitations. A comparison of five types of exercises performed on the accelerometer indicates that the machine underestimates the calories used even during increasing levels of work-out intensity. Indirect calorimetry, the gold standard of physical activity, measures energy expenditure more accurately than the accelerometer. TriTrac-R3D could be used to distinguish active from inactive people.

Product/Service Evaluation, Calorimetry, TriTrac-R3D (Exercise equipment)

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The validity of the Stanford seven-day physical activity recall in young adults

Article Abstract:

Results reveal that the seven-day-physical activity recall provides a reasonable measurement of both the average total daily expenditure and physical activity energy expenditure in a sample of young adult men and women who are moderately overweight. Data indicate that determinations on an individual basis for energy expenditure using physical activity recall introduces error.

Adults, Methods, Demographic aspects, Surveys, Exercise, Bioenergetics, Surveys (Studies)

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Validity of accelerometry for the assessment of moderate intensity physical activity in the field

Article Abstract:

This article evaluates the validity of using accelerometry to measure the metabolic costs of household tasks and recreational activities in the field. Results indicate that accelerometers were unable to detect changes in energy cost due to adjustments in surface terrain, load carriage, or upper body movements.

Statistical Data Included, Physiological aspects, Outdoor recreation, Human locomotion, House cleaning

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