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.


Heart Rate Oxygen Consumption Prediction equation Test-retest correlations


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