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Testo: <blockquote data-quote="beorn" data-source="post: 821253" data-attributes="member: 3867">interessante Q/A sull''argomento da parte di Dirk Friel (fratello del più famoso Joe Friel)fonte <a href="http://www.ultrafit.com/newsletter/december99.html" target="_blank">http://www.ultrafit.com/newsletter/december99.html</a> Q: I train by max heart rate. I'm kind of hesitant to have someone do lactate threshold testing for me as it might not be accurate. How do you make sure the test is accurate?-C.N.A: About your concern over LT testing: I don't use charts based on max HR and I'll explain below. Before I do though, let me say that cycling training technology is growing beyond this dilemma with the introduction of power meters, such as the Power-Tap unit. Measuring training load by wattage reduces the need for heart rate monitoring. Power monitoring also clearly supports my training philosophy. The training zones based on max HR that I have seen all assume your threshold is a certain percentage of max HR. I find it impossible that every person has their LT at the same percentage of max HR. Especially knowing that LT changes throughout the year. That in itself means the system of basing LT off max HR must be inaccurate. One component of cycling fitness is what percentage of max HR is your LT. Would you agree that your LT is lower now than it would be at your peak? If you agree that LT changes with fitness, then charts based on max HR assume your fitness never changes and so therefore why train at all? So which would you rather have? You can have a conventional LT or anaerobic test done, which is fairly accurate when performed by experienced staff, or continue to use a system that is itself inaccurate. I can relate to your hesitation in trusting someone's opinion on your LT measurement. Results can always be fine tuned and adjusted through racing and training. But also consider it doesn't really matter if you can walk away from the clinic with results in hand and therefore have the ability to compare future test results to make a more accurate profile of your physiology. That is the real value of LT/AT testing-the ability to collect your own fitness history and track progression. It also educates you about your own limits. That, in itself, is invaluable during competition. So if you do decide to get tested at a physiology lab, make sure you leave with the raw data (including work loads) so you can compare future tests. The winner is often the one who knows his abilities the best, not always the one with the best abilities.-Dirk Friel</blockquote>

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