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Sagot :
To manage the speed of your drop, stretch your pecs as you lower yourself to the ground. As you push back up once again, they get shorter. Concentric contractions take place during the rising and shortening phases of the workout, while eccentric contractions happen during the lowering and stretching phases.
Your muscle experiences strain when it shortens during a concentric contraction, a kind of muscular activation. A focused contraction occurs when tension is produced, shortening the length of the muscle as a whole. For instance, when doing the top part of a biceps curl, a concentric contraction takes place.
Constant muscle shortening occurs during concentric contractions, the most common form of muscle contraction. For instance, the triceps contract concentrically throughout the upward phase of a bicep curl or upward and portion of a push-up. To generate muscle contraction, thick myosin filaments and thin actin filaments slide past one another. When ATP is hydrolyzed, cross-bridges that extend from myosin filaments engage in periodic contacts with actin filaments, and are typically regarded to be the mechanism that is responsible for this.
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