The development of a regression equation to predict workload for the Astrand-Rhyming Test

Abstract

Purpose: The purpose of this study was to develop a multiple regression equation using easily assessed variable that would accurately predict workload for the Astrand-Rhyming Test. Specifically, the following variable were used to develop the multiple regression equation: (1) age, (2) height, (3) body weight, (4) resting heart rate, (5) resting blood pressure, (6) first minute exercise heart rate taken at 600 kpm workload, (7) leg strength as reflected by the strength of the quadriceps muscle group at 115° of extension, (8) leg length as reflected by a lateral line from the greater trochanter to the bicycle foot pedal. A sub-problem of the investigation was to calculate a predictive validity coefficient for the Astrand-Rhyming Test utilizing the established multiple regression equation to predict workload. Procedure: The subjects for this study were sixty male college freshman volunteers. The subjects were assigned to two equal groups based on scores obtained from the Balke Treadmill Test of aerobic capacity. One group of thirty subjects served as the experimental group and the other served as the validation group. The experimental group was tested in order to develop the multiple regression equation that would predict workload for the Austrand-Rhyming Test using the established mutlple regression equation. ...