What is Contracu injury?

It appears there might have been a typo in your request. There is no information on "Contracu injury," but if you meant "Contracture injury," here's some relevant information.

Contracture injuries involve the tightening or shortening of muscles, tendons, or other tissues, resulting in restricted movement. These can occur due to various reasons such as nerve damage, immobility, or severe muscle injury. Stretching practices and physical therapy can sometimes improve these conditions by increasing flexibility and range of motion.

Andrew Huberman explains various aspects of muscle flexibility, emphasizing the importance of regular stretching to maintain and improve the range of motion. He notes that flexibility can decrease significantly with age if not actively maintained. This decrease typically starts at around age 20 and continues progressively.1 2.

For more specific insights or if you meant a different term, please let me know!