Ian Jeffreys Books

Developing Speed
Developing Speed

By NSCA National Strength And Conditioning Association, Ian Jeffreys, National Strength & Conditioning Association (Estados Unidos)

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Athletes in all sports rely on speed. Whether it involves sprinting down the court on a fast break or chasing a loose ball, speed often contributes to overall athletic ability. Developing Speed tea...

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The Warm-Up: Maximize Performance And Improve Long-Term Athletic Development
The Warm-Up: Maximize Performance And Improve Long-Term Athletic Development

By Ian Jeffreys, Jeffreys, Ian

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Athletes do not all train the same way, but it is rare to see any athlete—at any level—exercise or compete without warming up. Although the warm-up can take many forms, smart coaches and athletes k...

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Total Soccer Fitness
Total Soccer Fitness

By Ian Jeffreys

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Gamespeed
Gamespeed

By Ian Jeffreys

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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