Eccentric strengthening is a form of exercise where the muscle lengthens while under tension, often during the controlled lowering phase of a movement. This type of training is highly effective for improving muscle control, strength, and flexibility. Eccentric strengthening is commonly used for rehabilitation following tendon injuries, muscle strains, and joint instability.

Examples of eccentric strengthening exercises include slow lowering of weights during bicep curls or squats, or walking down stairs. Eccentric training helps improve the elasticity of muscles and tendons, making them more resistant to injury and increasing their ability to handle load during dynamic movements.

Eccentric strengthening is a key component in rehabilitation programs, particularly for individuals recovering from tendonitis, muscle tears, or joint injuries.