What happens during a concentric contraction?

During a concentric contraction, the muscle shortens while generating force. This type of contraction occurs when a muscle actively contracts and overcomes resistance, leading to a decrease in muscle length. An example of this is during the upward phase of a bicep curl, where the bicep muscle shortens as it lifts a weight.

This process is essential for various physical activities and movements, allowing for actions such as lifting, running, or jumping. The shortening of the muscle under tension allows for effective movement and contributes to the coordination and performance of various physical tasks.