“You are the salt of the earth; but if salt has lost its taste, how shall its saltiness be restored? It is no longer good for anything except to be thrown out and trodden under foot by men. - Matthew 5:13
Here's a copy of my introductory ebook to combat sports in this you will gain insight into.. - Basic Concepts of CS Performance - Origins of Martial Arts - Physics in Sport - Foundational Patterns If you're looking to go deeper with these concepts transfer over to the premium tier.