Energy Cost Expression for a Youth Compendium of Physical Activities: Rationale for Using Age Groups.
Pediatr Exerc Sci
; 30(1): 142-149, 2018 02 01.
Article
em En
| MEDLINE
| ID: mdl-28787244
ABSTRACT
PURPOSE:
This study compared the accuracy of physical activity energy expenditure (PAEE) prediction using 2 methods of accounting for age dependency versus 1 standard (single) value across all ages.METHODS:
PAEE estimates were derived by pooling data from 5 studies. Participants, 6-18 years (n = 929), engaged in 14 activities while in a room calorimeter or wearing a portable metabolic analyzer. Linear regression was used to estimate the measurement error in PAEE (expressed as youth metabolic equivalent) associated with using age groups (6-9, 10-12, 13-15, and 16-18 y) and age-in-years [each year of chronological age (eg, 12 = 12.0-12.99 y)] versus the standard (a single value across all ages).RESULTS:
Age groups and age-in-years showed similar error, and both showed less error than the standard method for cycling, skilled, and moderate- to vigorous-intensity activities. For sedentary and light activities, the standard had similar error to the other 2 methods. Mean values for root mean square error ranged from 0.2 to 1.7 youth metabolic equivalent across all activities. Error reduction ranged from -0.2% to 21.7% for age groups and -0.23% to 18.2% for age-in-years compared with the standard.CONCLUSIONS:
Accounting for age showed lower errors than a standard (single) value; using an age-dependent model in the Youth Compendium is recommended.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Exercício Físico
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Metabolismo Energético
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Equivalente Metabólico
Tipo de estudo:
Health_economic_evaluation
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Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article