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Relationship between basal metabolic rate, gender, age, and body composition in 8,780 white obese subjects.
Obesity (Silver Spring) 2010; 18(1):71-8O

Abstract

The objective of the present study was to explore the relationship between basal metabolic rate (BMR), gender, age, anthropometric characteristics, and body composition in severely obese white subjects. In total, 1,412 obese white children and adolescents (BMI > 97 degrees percentile for gender and age) and 7,368 obese adults (BMI > 30 kg/m(2)) from 7 to 74 years were enrolled in this study. BMR was measured using an indirect calorimeter equipped with a canopy and fat free mass (FFM) were obtained using tetrapolar bioelectrical impedance analysis (BIA). Using analysis of covariance, we tested the effect of gender on the relationship between BMR, age, anthropometry, and body composition. In children and adolescents, the predictor x gender interaction was significant in all cases except for FFM x gender. In adults, all predictor x gender interactions were significant. A prediction equation based on body weight (BW), age, and gender had virtually the same accuracy of the one based on FFM, age, and gender to predict BMR in both children and adults (R(2)(adj) = 0.59 and 0.60, respectively). In conclusion, gender was a significant determinant of BMR in children and adolescents but not in adults. Our results support the hypothesis that the age-related decline in BMR is due to a reduction in FFM. Finally, anthropometric predictors of BMR are as accurate as body composition estimated by BIA.

Authors+Show Affiliations

Istituto Auxologico Italiano, IRCCS, Laboratorio Sperimentale di Ricerche Auxo-endocrinologiche, Verbania, Italy.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19478787

Citation

Lazzer, Stefano, et al. "Relationship Between Basal Metabolic Rate, Gender, Age, and Body Composition in 8,780 White Obese Subjects." Obesity (Silver Spring, Md.), vol. 18, no. 1, 2010, pp. 71-8.
Lazzer S, Bedogni G, Lafortuna CL, et al. Relationship between basal metabolic rate, gender, age, and body composition in 8,780 white obese subjects. Obesity (Silver Spring). 2010;18(1):71-8.
Lazzer, S., Bedogni, G., Lafortuna, C. L., Marazzi, N., Busti, C., Galli, R., ... Sartorio, A. (2010). Relationship between basal metabolic rate, gender, age, and body composition in 8,780 white obese subjects. Obesity (Silver Spring, Md.), 18(1), pp. 71-8. doi:10.1038/oby.2009.162.
Lazzer S, et al. Relationship Between Basal Metabolic Rate, Gender, Age, and Body Composition in 8,780 White Obese Subjects. Obesity (Silver Spring). 2010;18(1):71-8. PubMed PMID: 19478787.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship between basal metabolic rate, gender, age, and body composition in 8,780 white obese subjects. AU - Lazzer,Stefano, AU - Bedogni,Giorgio, AU - Lafortuna,Claudio L, AU - Marazzi,Nicoletta, AU - Busti,Carlo, AU - Galli,Raffaela, AU - De Col,Alessandra, AU - Agosti,Fiorenza, AU - Sartorio,Alessandro, Y1 - 2009/05/28/ PY - 2009/5/30/entrez PY - 2009/5/30/pubmed PY - 2010/4/1/medline SP - 71 EP - 8 JF - Obesity (Silver Spring, Md.) JO - Obesity (Silver Spring) VL - 18 IS - 1 N2 - The objective of the present study was to explore the relationship between basal metabolic rate (BMR), gender, age, anthropometric characteristics, and body composition in severely obese white subjects. In total, 1,412 obese white children and adolescents (BMI > 97 degrees percentile for gender and age) and 7,368 obese adults (BMI > 30 kg/m(2)) from 7 to 74 years were enrolled in this study. BMR was measured using an indirect calorimeter equipped with a canopy and fat free mass (FFM) were obtained using tetrapolar bioelectrical impedance analysis (BIA). Using analysis of covariance, we tested the effect of gender on the relationship between BMR, age, anthropometry, and body composition. In children and adolescents, the predictor x gender interaction was significant in all cases except for FFM x gender. In adults, all predictor x gender interactions were significant. A prediction equation based on body weight (BW), age, and gender had virtually the same accuracy of the one based on FFM, age, and gender to predict BMR in both children and adults (R(2)(adj) = 0.59 and 0.60, respectively). In conclusion, gender was a significant determinant of BMR in children and adolescents but not in adults. Our results support the hypothesis that the age-related decline in BMR is due to a reduction in FFM. Finally, anthropometric predictors of BMR are as accurate as body composition estimated by BIA. SN - 1930-739X UR - https://www.unboundmedicine.com/medline/citation/19478787/Relationship_between_basal_metabolic_rate_gender_age_and_body_composition_in_8780_white_obese_subjects_ L2 - https://doi.org/10.1038/oby.2009.162 DB - PRIME DP - Unbound Medicine ER -