Define "eccentric" contraction in the context of Pilates.

In Pilates, an "eccentric" contraction refers to a type of muscle contraction where the muscle lengthens while still under tension. This mechanism plays a crucial role in controlling movement as it allows for smooth, gradual motions rather than abrupt ones. Eccentric contractions are vital in Pilates exercises because they help to stabilize joints and maintain control over the movement, especially during the lowering phase of an exercise.

For example, when performing a roll down, the muscles in the abdomen and spine eccentrically contract to control the descent, providing support and alignment while resisting gravity. This leads to enhanced muscle strength and flexibility over time, which is essential for overall functional movement and injury prevention. Understanding eccentric contractions helps practitioners appreciate the importance of muscle engagement and control throughout their Pilates practice.