Estimation of energy expenditure from physical activity measures: determinants of accuracy.

OBJECTIVE To describe the determinants, specifically age, body mass index, percentage of body fat, and physical activity (PA) level, associated with over- and underestimation of energy expenditure (EE) using PA records and the Stanford Seven-Day Physical Activity Recall (7DR) compared with doubly labeled water (DLW). RESEARCH METHODS AND PROCEDURES We collected PA measures on 24 males eating a controlled diet designed to maintain body weight, and we determined EE from DLW and estimated EE from PA records and 7DR. RESULTS Absolute differences in the estimation of EE between DLW and PA assessment methods were greater for the 7DR (30.6 +/- 9.9%) than PA records (7.9 +/- 3.2%). In PA records, overestimation of EE was greater with older age and higher body fatness; EE was overestimated by 16.7% among men 50 years and older compared with only 5.3% among men <40 years of age. For percentage of body fat, EE was overestimated by 19.7% among men with a percentage of body fat > or =30% compared with only 5.6% among men with a percentage of body fat <25%. A trend for less overestimation of EE with higher levels of PA (measured by DLW/basal metabolic rate [BMR]) also was observed in the PA records. In the 7DR, the estimates of EE varied widely and no trends were observed by age, percentage of body fat, and PA levels. DISCUSSION Estimation of EE from the 7DR is considerably more variable than from PA records. Factors related to age and percentage of body fat influenced the accuracy of estimated EE in the PA record. Additional studies are needed to understand factors related to accurate reporting of PA behaviors, which are used to estimate EE in free-living adults.

[1]  B E Ainsworth,et al.  A simultaneous evaluation of 10 commonly used physical activity questionnaires. , 1993, Medicine and science in sports and exercise.

[2]  S. Heymsfield,et al.  Discrepancy between self-reported and actual caloric intake and exercise in obese subjects. , 1992, The New England journal of medicine.

[3]  K. Vranizan,et al.  Assessment of habitual physical activity by a seven-day recall in a community survey and controlled experiments. , 1985, American journal of epidemiology.

[4]  G. Blackburn,et al.  Physical activity in the prevention and treatment of obesity and its comorbidities. , 1999, Medicine and science in sports and exercise.

[5]  A. King,et al.  Self‐Favoring Bias for Physical Activity in Middle‐Aged and Older Adults1 , 2000 .

[6]  B E Ainsworth,et al.  Quantifying energy expenditure and physical activity in the context of dose response. , 2001, Medicine and science in sports and exercise.

[7]  Wim H. M. Saris,et al.  Measuring Physical Activity and Energy Expenditure , 1996 .

[8]  Bruce K. Armstrong,et al.  Principles of Exposure Measurement in Epidemiology , 1992 .

[9]  J M Jakicic,et al.  Accuracy of self-reported exercise and the relationship with weight loss in overweight women. , 1998, Medicine and science in sports and exercise.

[10]  W. P. T. James,et al.  Book Review: Human Energy Requirements: A Manual for Planners and Nutritionists , 1991 .

[11]  B E Ainsworth,et al.  Validation of the Stanford 7-day recall to assess habitual physical activity. , 2001, Annals of epidemiology.

[12]  B E Ainsworth,et al.  The recall of physical activity: using a cognitive model of the question-answering process. , 1996, Medicine and science in sports and exercise.

[13]  W. Rumpler,et al.  Comparison of doubly labeled water, intake-balance, and direct- and indirect-calorimetry methods for measuring energy expenditure in adult men. , 1990, The American journal of clinical nutrition.

[14]  B E Ainsworth,et al.  Validity of four motion sensors in measuring moderate intensity physical activity. , 2000, Medicine and science in sports and exercise.

[15]  D. Matthews,et al.  Assessment of physical activity in older individuals: a doubly labeled water study. , 1999, Journal of applied physiology.

[16]  M. Sun,et al.  Energy expenditure determined by self-reported physical activity is related to body fatness. , 1999, Obesity research.

[17]  S. Heymsfield,et al.  Do unsuccessful dieters intentionally underreport food intake? , 1998, The International journal of eating disorders.

[18]  P. Freedson,et al.  Validity of accelerometry for the assessment of moderate intensity physical activity in the field. , 2000, Medicine and science in sports and exercise.

[19]  J R Speakman,et al.  The history and theory of the doubly labeled water technique. , 1998, The American journal of clinical nutrition.

[20]  J. Kampert,et al.  Comparison of lifestyle and structured interventions to increase physical activity and cardiorespiratory fitness: a randomized trial. , 1999, JAMA.

[21]  A. Ferro-Luzzi,et al.  Definition of chronic energy deficiency in adults. Report of a working party of the International Dietary Energy Consultative Group. , 1988, European journal of clinical nutrition.

[22]  J. Kronenfeld,et al.  Reliability of long-term recall of participation in physical activity by middle-aged men and women. , 1991, American journal of epidemiology.

[23]  G. Somes,et al.  The accuracy of self-reports of physical activity. , 1990, Medicine and science in sports and exercise.

[24]  P. M. Reid,et al.  DOUBLY LABELED WATER VALIDATION OF THE COMPENDIUM OF PHYSICAL ACTIVITIES IN LEAN AND OBESE COLLEGE WOMEN , 1999 .

[25]  B E Ainsworth,et al.  Moderate physical activity patterns of minority women: the Cross-Cultural Activity Participation Study. , 1999, Journal of women's health & gender-based medicine.

[26]  Barbara E Ainsworth,et al.  Comparison of energy expenditure estimates from doubly labeled water, a physical activity questionnaire, and physical activity records. , 2002, The American journal of clinical nutrition.

[27]  S. Grundy,et al.  Physical activity in the prevention and treatment of obesity and its comorbidities: evidence report of independent panel to assess the role of physical activity in the treatment of obesity and its comorbidities. , 1999, Medicine and science in sports and exercise.

[28]  B E Ainsworth,et al.  Compendium of physical activities: an update of activity codes and MET intensities. , 2000, Medicine and science in sports and exercise.

[29]  Mark A Pereira,et al.  A collection of Physical Activity Questionnaires for health-related research. , 1997, Medicine and science in sports and exercise.

[30]  W. Rumpler,et al.  Repeatability of 24-h energy expenditure measurements in humans by indirect calorimetry. , 1990, The American journal of clinical nutrition.