Скачать или смотреть Brad Schoenfeld: Concentric vs Eccentric Rules

Concentric and eccentric contractions are two types of muscle contractions. Concentric contractions occur when a muscle shortens as it contracts, such as when you lift a weight. Eccentric contractions occur when a muscle lengthens as it contracts, such as when you lower a weight back down.

In general, concentric contractions are used to generate force and produce movement, while eccentric contractions are used to control the movement of a weight or resist external forces. For example, when you do a bicep curl, the concentric contraction occurs as you lift the weight up, while the eccentric contraction occurs as you lower the weight back down.

One key difference between concentric and eccentric contractions is the amount of force they produce. Concentric contractions typically produce more force than eccentric contractions, allowing you to lift heavier weights. Eccentric contractions, on the other hand, allow you to control the movement of a weight and resist external forces, helping to prevent injury.

Overall, both concentric and eccentric contractions are important for muscle strength and function, and a well-rounded fitness routine should include exercises that incorporate both types of contractions.

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