How to unlock your hips to release trauma?

Can you elaborate on the concept of unlocking your hips to release trauma? Is this a physical practice, such as yoga or stretching, or does it involve emotional or mental techniques? Are there specific exercises or movements that have been proven effective in releasing trauma stored in the hips? Additionally, how does unlocking the hips contribute to overall well-being and stress relief? I'm interested in understanding the science behind this practice and its potential benefits.