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Balancing Your Hormones With Neal Barnard, MD
richroll.com
testing their aerobic speed. Since endurance is the ability to perform more work with the same or less effort, speed—as minutes per mile, miles per hour, laps per time period, and so on—can be used to keep track of progress. This is done with a heart-rate monitor, testing a sub-maximum effort, such as 75 percent of maximum,
Philip Maffetone • The Big Book of Endurance Training and Racing
these zones are nominally meant to represent changes in the way in which energy is being produced. This is often quantified by reference to the blood lactate level of the athlete. However, blood lactate is hard for an individual to measure in every training session. Consequently, physiological testing can be used to find the relationship between
... See moreDr Dan Cleather PhD • The Little Black Book of Training Wisdom: How to train to improve at any sport
Seiler’s rule also helps runners by explicitly defining low intensity. The boundary between low intensity and moderate intensity, according to Seiler, falls at the ventilatory threshold, which is the intensity level at which the breathing rate abruptly deepens.