Abstract

The purpose of the present study was to find a relationship between Heart Rate (HR) and Oxygen Consumption of industrial workers. HR and Oxygen Consumption of 135 adult males from service sector and 49 adult male from manufacturing sector in the age group of 40-50 years were measured by direct (breath-by-breath technique using Cortex Metamax 3B) measurement using computerized Bi-cycale ergometer. The correlation coefficients of HR with oxygen consumption of Service and Manufacturing sectors were 0.82 and 0.81 and Mean Square Error were 24.02 and 29.54. These two group were merged (135+49=185) and an Experimental group was formed (Phase I). In Phase II Prediction equation for oxygen consumption was developed from the regression analysis. The correlation coefficient of HR with oxygen consumption was 0.82 and Mean Square Error (MSE) was 24.27. In Phase III 100 new subjects (Validation group) were chosen at random from service and manufacturing sector. There oxygen consumption was determined by using laboratory technique and also by prediction equation developed in phase II. Test-retest correlation values showed high correlation coefficient 0.85 and MSE 16.24. The higher correlation value shows the accuracy of the prediction equation developed in the present study.

Keywords

Heart Rate, Oxygen Consumption, Prediction equation, Test-retest correlations,

References

  1. G. A. Meijer, K. R. Westerterp, H. Koper, F. Ten Hoor, Assessment of energy expenditure by recording heart rate and body acceleration, Medicine & Science in Sports & Exercise, 21 (1989) 343–347.
  2. S. Schulz, K. R. Westerterp, K. Brück, Comparison of energy expenditure by the doubly labeled technique with energy intake, heart rate, and activity recording in man, The American Journal of Clinical Nutrition, 49 (1989) 1146–54.
  3. W. C. Miller, J. P. Wallace, K. E. Eggert, Predicting max HR and the HR – V O2 relationship for exercise prescription in obesity, Medicine & Science in Sports & Exercise, 25 (1993) 1077–81.
  4. M. B. Gilman, The use of heart rate to monitor the intensity of endurance training, Sports Medicine, 21 (1996) 73–79.
  5. P. J. Butler, J. A. Green, I. L. Boyd, J. R. Speakman, Measuring metabolic rate in the field: the pros and cons of the doublylabelled water and heart rate methods, Functional Ecology, 18 (2004)168–183.
  6. J. A. Green, P. J. Butler, A. J. Woakes, I. L. Boyd, R. L. Holder, Heart rate and rate of oxygen consumption of exercising macaroni penguins, The Journal of Experimental Biology, 204 (2001) 673–684.