Lydiard's "Fundamental Principle of Training"

Download my FREE "Ultimate Guide to Marathon Long Runs" here: https://mailchi.mp/runningcoachcarl/m... For more practical running advice, check out my -- Website: https://www.runningcoachcarl.com -- Instagram:   / runcoachcarl   -- Facebook:   / runningcoachcarl   We get bombarded with new training ideas, theory, and approaches -- but so much of what we do as distance runners has its roots WAY far back. Let's look at some training advice from 1961 that is still as applicable today as it was when it was written. Background Music: "Summer" by bensound.com