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Comparison of the TriTrac-R3D accelerometer and a self-report activity diary with heart-rate monitoring for the assessment of energy expenditure in children.
Br J Nutr 2002; 87(6):623-31BJ

Abstract

Determining total energy expenditure (EE) in children under free-living conditions has become of increasingly clinical interest. The aim of this study was to compare three different methods to assess EE triaxial accelerometry (TriTrac-R3D; Professional Products, Division of Reining International, Madison, WI, USA), activity diary and heart-rate (HR) monitoring combined with indirect calorimetry (IC). Twenty non-obese children and adolescents, aged 5.5 to 16.0 years, participated in this study. Results from the three methods were collected simultaneously under free-living conditions during the same 24 h schoolday period. Neither activity diary (5904 (sd 1756) kJ) nor the TriTrac-R3D (6389 (sd 979) kJ) showed statistical differences in 24 h total EE compared with HR monitoring (5965 (sd 1911) kJ). When considering different physical activity (PA) periods, compared with HR monitoring, activity diary underestimates total EE during sedentary periods (P<0.001) and overestimates total EE and PA-EE during PA periods (P<0.001) because of the high energy cost equivalence of activity levels. The TriTrac-R3D, compared with HR monitoring, shows good agreement for assessing PA-EE during PA periods (mean difference +0.25 (sd 1.9) kJ/min; 95 % CI for the bias -0.08, 0.58), but underestimates PA-EE and it does not show good precision during sedentary periods (-0.87 (sd 1.4) kJ/min, P<0.001). Correlation between the vector magnitude generated by the TriTrac-R3D accelerometer and EE of activities derived from HR monitoring is high. When compared with the HR method, the TriTrac-R3D and activity diary are not systematically accurate and must be carefully used for the assessment of children's EE depending on the purpose of each study.

Authors+Show Affiliations

Unité de Gastroentérologie, Hépatologie et Nutrition, Clinique de Pédiatrie, Hôpital Jeanne de Flandre, and Faculté de Médecine, Lille, France.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12067433

Citation

Rodriguez, G, et al. "Comparison of the TriTrac-R3D Accelerometer and a Self-report Activity Diary With Heart-rate Monitoring for the Assessment of Energy Expenditure in Children." The British Journal of Nutrition, vol. 87, no. 6, 2002, pp. 623-31.
Rodriguez G, Béghin L, Michaud L, et al. Comparison of the TriTrac-R3D accelerometer and a self-report activity diary with heart-rate monitoring for the assessment of energy expenditure in children. Br J Nutr. 2002;87(6):623-31.
Rodriguez, G., Béghin, L., Michaud, L., Moreno, L. A., Turck, D., & Gottrand, F. (2002). Comparison of the TriTrac-R3D accelerometer and a self-report activity diary with heart-rate monitoring for the assessment of energy expenditure in children. The British Journal of Nutrition, 87(6), pp. 623-31.
Rodriguez G, et al. Comparison of the TriTrac-R3D Accelerometer and a Self-report Activity Diary With Heart-rate Monitoring for the Assessment of Energy Expenditure in Children. Br J Nutr. 2002;87(6):623-31. PubMed PMID: 12067433.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of the TriTrac-R3D accelerometer and a self-report activity diary with heart-rate monitoring for the assessment of energy expenditure in children. AU - Rodriguez,G, AU - Béghin,L, AU - Michaud,L, AU - Moreno,L A, AU - Turck,D, AU - Gottrand,F, PY - 2002/6/18/pubmed PY - 2002/7/26/medline PY - 2002/6/18/entrez SP - 623 EP - 31 JF - The British journal of nutrition JO - Br. J. Nutr. VL - 87 IS - 6 N2 - Determining total energy expenditure (EE) in children under free-living conditions has become of increasingly clinical interest. The aim of this study was to compare three different methods to assess EE triaxial accelerometry (TriTrac-R3D; Professional Products, Division of Reining International, Madison, WI, USA), activity diary and heart-rate (HR) monitoring combined with indirect calorimetry (IC). Twenty non-obese children and adolescents, aged 5.5 to 16.0 years, participated in this study. Results from the three methods were collected simultaneously under free-living conditions during the same 24 h schoolday period. Neither activity diary (5904 (sd 1756) kJ) nor the TriTrac-R3D (6389 (sd 979) kJ) showed statistical differences in 24 h total EE compared with HR monitoring (5965 (sd 1911) kJ). When considering different physical activity (PA) periods, compared with HR monitoring, activity diary underestimates total EE during sedentary periods (P<0.001) and overestimates total EE and PA-EE during PA periods (P<0.001) because of the high energy cost equivalence of activity levels. The TriTrac-R3D, compared with HR monitoring, shows good agreement for assessing PA-EE during PA periods (mean difference +0.25 (sd 1.9) kJ/min; 95 % CI for the bias -0.08, 0.58), but underestimates PA-EE and it does not show good precision during sedentary periods (-0.87 (sd 1.4) kJ/min, P<0.001). Correlation between the vector magnitude generated by the TriTrac-R3D accelerometer and EE of activities derived from HR monitoring is high. When compared with the HR method, the TriTrac-R3D and activity diary are not systematically accurate and must be carefully used for the assessment of children's EE depending on the purpose of each study. SN - 0007-1145 UR - https://www.unboundmedicine.com/medline/citation/12067433/Comparison_of_the_TriTrac_R3D_accelerometer_and_a_self_report_activity_diary_with_heart_rate_monitoring_for_the_assessment_of_energy_expenditure_in_children_ L2 - https://www.cambridge.org/core/product/identifier/S0007114502001241/type/journal_article DB - PRIME DP - Unbound Medicine ER -