--- title: "Meaning & Key Takeaway of: The last great unknown, in terms of…" description: "\"The last great unknown, in terms of physiological training, is the optimum length of a piece. Is three minutes enough? Is ten minutes too much? No one ..." image: "https://sms4smile.com/quotes/i/dab/brad-alan-lewis-16353_coaches_the-last-great-unknown-in-terms-of-physi_1421234.jpg" --- # The last great unknown, in terms of physiological… ![“The last great unknown, in terms of physiological training, is the optimum length of a piece. Is three minutes enough? Is ten minutes too much? No one knows. Perhaps someday the question will be answered-we'll find out that thirteen minutes is the perfect length for a training piece when preparing…” quote by Brad Alan Lewis](https://sms4smile.com/quotes/i/dab/brad-alan-lewis-16353_coaches_the-last-great-unknown-in-terms-of-physi_1421234.jpg) [Download](https://sms4smile.com/quotes/i/dab/brad-alan-lewis-16353_coaches_the-last-great-unknown-in-terms-of-physi_1421234.jpg) [Open image](https://sms4smile.com/quotes/i/dab/brad-alan-lewis-16353_coaches_the-last-great-unknown-in-terms-of-physi_1421234.jpg) > “The last great unknown, in terms of physiological training, is the optimum length of a piece. Is three minutes enough? Is ten minutes too much? No one knows. Perhaps someday the question will be answered-we'll find out that thirteen minutes is the perfect length for a training piece when preparing for a 2000 meter race. Until then, coaches will continue exploring the whole scale, up and down, from thirty seconds to sixty minutes and more, in hopes of capturing the optimum time.” [Brad Alan Lewis](https://sms4smile.com/quotes/author/brad-alan-lewis/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The optimal duration for training pieces is unknown; researchers test various lengths to find the most effective for performance. **In simple terms:** We don’t know the best training length yet. Key Takeaway Experiment with different session lengths. Themes training performance research Mood inquisitive analytical Type advice scientific When to use this quote - coaching - athlete preparation - track events - experiment design Key Concepts physiology optimal duration Questions to Reflect On - How might individual differences affect optimal training time? - What metrics should define “optimal”? A Different Perspective The ideal length may differ by sport and individual, limiting a single answer. ★ ★ ★ ★ ★ No ratings yet [Fitness](https://sms4smile.com/quotes/about/fitness/) [Great unknown](https://sms4smile.com/quotes/about/great-unknown/) [Race](https://sms4smile.com/quotes/about/race/) [Rowing](https://sms4smile.com/quotes/about/rowing/) [Thirteen](https://sms4smile.com/quotes/about/thirteen/) [Training](https://sms4smile.com/quotes/about/training/) [Up and down](https://sms4smile.com/quotes/about/up-and-down/) ## Related quotes > [“If you really want to focus on something, says Castellanos, the optimum amount of time to spend on it is ninety minutes. 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