Accuracy of energy expenditure estimation by activity monitors differs with ethnicity.
Int J Sports Med
; 35(10): 847-50, 2014 Sep.
Article
em En
| MEDLINE
| ID: mdl-24816887
ABSTRACT
The aim of this project is to explore the accuracy of 2 activity monitors (SenseWear Armband & Actical) to estimate energy expenditure during rest and light to moderate intensity exercises in 2 ethnic groups. 18 Caucasian and 20 Black adults (age 26.8±5.2 years; body mass index 23.9±3.0 kg/m(2)) wore the 2 devices simultaneously during 3 standardised activities 30-min rest, 45-min of treadmill at 40% of their VËO2peak and 45-min of stationary cycling at 50% of their VËO2peak. Energy estimated with the 2 devices was compared to indirect calorimetry measurements. Both devices overestimated energy expenditure during rest (SenseWear 36% in Black vs. 16% in Caucasian; Actical 26% vs. 11%, p<0.01 between groups) and treadmill (SenseWear 50% vs. 25%; Actical 67% vs. 32%, p<0.01 between groups). Both devices significantly underestimated energy expenditure during stationary cycling (SenseWear 24% vs. 26%; Actical 58% vs. 70%, p=NS between groups). Equations used to estimate energy expenditure from accelerometer data is less precise among Black adults than Caucasian adults. Ethnic-specific formulas are probably required.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Exercício Físico
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População Negra
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População Branca
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Metabolismo Energético
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Actigrafia
Tipo de estudo:
Health_economic_evaluation
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article