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Abstract
The accuracy of using the HR/[Vdot]O2 relation determined in running to predict [Vdot]O2 from HR in tasks involving static and combined static/dynamic exercise was examined in a group of 8 healthy subjects (age 20-27 years). The HR measured in weight-holding tasks (with static exercise) and weight-carrying tasks (with combined static/dynamic exercise) with weights varying from 4-12 kg was inserted into the linear relation between HR and [Vdot]O2 in the running task (dynamic exercise). The predicted [Vdot]O2 was compared with measured value
The conclusions were as follows. It is not accurate to use a simple dynamic task to predict [Vdot]O2 from a measured HR in static work. The percentage differences vary between 78 and 186%. In combined static-dynamic work a simple dynamic task can be accurately used to predict [Vdot]O2 from measured HR, while carrying small weights (4, 8 and 10 kg). However, more static work (12 kg) makes the estimations poorer with a significant percentage difference in [Vdot]O2 of 38%.
