Heart rate as a predictor of energy expenditure in people with spinal cord injury.
J Rehabil Res Dev
; 42(5): 617-24, 2005.
Article
en En
| MEDLINE
| ID: mdl-16586187
ABSTRACT
This study evaluated the accuracy of heart rate calibrated from a maximum exercise test for predicting energy expenditure during five activities of daily living (ADL) in participants with spinal cord injury (SCI). Thirteen individuals with SCI underwent maximum exercise testing, followed by portable heart rate and metabolic testing during five ADL. A regression equation was developed from heart rate and oxygen uptake responses during the maximum exercise test for each subject. Based on this individualized equation, heart rate measured during the ADL was used to estimate energy expenditure for each participant. Predicted energy expenditure from heart rate was compared with that measured by indirect calorimetry with the use of oxygen uptake. Heart rate derived from the individualized regression equations explained 55% of the variance in measured energy expenditure, compared with only 8.3% from heart rate alone. However, calibrated heart rate consistently overestimated the actual kilocalories used; on average, the estimated energy expenditure was roughly 25% higher than that measured by oxygen uptake. Heart rate can be used as a gross estimate of energy expenditure during higher-intensity ADL in people with SCI when individual calibration of heart rate from maximum exercise testing is used.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Traumatismos de la Médula Espinal
/
Actividades Cotidianas
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Metabolismo Energético
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Frecuencia Cardíaca
Tipo de estudio:
Etiology_studies
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Health_economic_evaluation
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Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
/
Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Rehabil Res Dev
Asunto de la revista:
ENGENHARIA BIOMEDICA
/
REABILITACAO
Año:
2005
Tipo del documento:
Article
País de afiliación:
Estados Unidos