A brief history of exercise clearance and prescription: 1. The era of heart rate recovery curves
Keywords:Exercise testing, Lactate, Oxygen debt, Recuperation, Ruffier test, Ruffier- Dickson test, 20-metre shuttle-run
Objective. The aim of this 2-part article is to provide a brief chronicle of the development of exercise clearance and prescription procedures over the past century, with particular reference to Canadian innovations.
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