Estimation of Values of Energy Expenditure Rate from Observed Values of Heart Rate

Abstract

Different bases upon which linear regression equations can be constructed for estimating values of energy expenditure rate from observed values of heart rate are examined. Approximately 100 different regression equations corresponding to different bases were developed from 510 observations made of 11 different tasks. The regression equations constructed on the various bases are compared with one another and with respiratory calorimetry in terms of the experimental error which each introduces into the estimation of energy expenditure. The results suggest that for certain kinds of investigations the regression method can be substituted fruitfully for respiratory calorimetry.

Heart rate and estimated energy expenditure during ballroom dancing.

“…Since oxygen demand is difficult to measure directly during competitive dance performance, this study relies on the relationship which has previously been established between heart rate (HR) and oxygen consumption (M°2 during submaximal exercise (Wyndham et al, 1959;Astrand and Saltin, 1961;Molhotra et al, 1963;Andrews, 1967;Datta and Ramanathan, 1969). During low-intensity work a linear function fits both oxygen uptake and HR plots against workload, but at high workloads the curve has been described as an exponential function.…”

Heart rate and oxygen consumption relationship changes following intense training

“…The relationship between HR and VO 2 has become widely used in the evaluation of work when it is difficult or impractical to measure oxygen uptake directly (Andrews, 1967;Blanksby and Reidy, 1988;Fitchett, 1985;Karvonen et al, 1957). This relationship is also commonly used to predict VO 2max from the extrapolation of HR recorded at low-intensity Running Speed (mph) FIGURE 1 Heart rate and oxygen consumption (VO 2 ) pre-and postintense exercise at four steady-state running speeds.…”

“…Such evaluation relies on numerous investigations that have previously identified a linear relationship between HR and VO 2 during submaximal exercise (Andrews, 1967;Astrand and Saltin, 1961;Bunc etal., 1988;Collins etal., 1991;Datta and Ramanathan, 1969;Kline et al, 1987;Legge and Banister, 1986;Molhotra et al, 1963;Wyndham et al, 1959). It is accepted that long-term training can change the HR and VO 2 relationship through an increase in stroke volume, total hemoglobin, or an increased tissue oxygen utilization (Astrand and Rodahl, 1977 Recent research has suggested that the accepted V0 2 to HR linear relationship is not as stable as originally suggested.…”