Articles | YMAA

Necessity is the Mother of Invention - The Tiger Claw Set
March 18, 2024
The principle behind the Tiger Claw Set is simple: drop your attacker’s primary sensor system at the earliest opportunity before striking other various vulnerable targets until you can escape to safety. 5 Min. Read
Building an Arsenal of Target Areas
March 5, 2023
“Knowing is not enough; we must apply. Willing is not enough; we must do.”—Bruce Lee
Graduated Levels of Awareness in Self-Defense
January 8, 2023
Awareness is your ability to be cognizant of the environment and events going on around you.”
Some “Art” and Some “Science” of Combat Sports, Martial Arts, and Self-Defense
August 8, 2022
Martial arts, combat sports, and self-defense are different realms, and, while interconnected, they are not entirely the same.
A Scientific Approach to Self Defense
July 4, 2022
The entire Tiger Claw combination should only take a few seconds to execute completely. With practice, you can deliver all four moves in less than three seconds.
Ready, Stress, Go! Why Active Shooter Training Fails - - June 27, 2022
Training that leaves participants terrorized, anxious and bruised fails the foundational ideal that makes it meaningful.
Self-Defense and the Law - June 20, 2022
When claiming self-defense, you are admitting that you are guilty of what would normally be a violent criminal action and that you did so intentionally and knowingly. However, you are also stating that your actions were justified under the given circumstances.
The Lowest Level of Force - December 7, 2020
The Records area at Rusafa Prison Complex in Baghdad is enclosed by a chain-link fence and was almost always crowded. It’s a stressful place, with inmates being processed in and out, Iraqi military, police, corrections, advocates, politicos, and sometimes families of the convicts are present and a small handful of American advisors.
The Way of the Warrior - June 18, 2018
In the witching hours of night, after a softball game with friends, police officer Stacey Lim was returning home. As she parked, a vehicle carrying five members of a local gang crept behind her. A young man emerged from the vehicle. He meant to murder her and to steal her car. He wanted to prove himself to fellow gang members. Officer Lim stepped out of her vehicle and turned into the looming barrel of a gun.
Can We Win the War on Terror? - March 19, 2018
Terrorism and Rapid Mass Murder seem to be permanent, lurking shadows darkening the stage of modern politics. Experts weave a nest of causes, from untempered religious orthodoxy and the moral queasiness of the West to historical grievance and the Internet as a mechanism for radicalization, among others. All, perhaps, carry their measure of truth. I would like to suggest that whatever volatile mix of causes accounts for the menace of terrorism, as a practical matter, the problem is intractable. The prevailing structure of our institutions offers no response to it.
The Spirit of the Warrior - March 12, 2018
The spirit of the warrior touches many across time and place. It is not exclusive to those professionals who devote their lives to it. It touches the mother who, with blinding ferocity, protects a child against danger. It touches the young man who blazes like a flame and charges forward when an armed terrorist storms onto the train that carries him.
Easy Training Equipment for Staff Fun - December 5, 2016
Here is your opportunity to become the "Lord of the Rings" (sorry, I just couldn't help myself!). Training rings allow you to develop accurate, penetrating thrusts as well as circular techniques used in manipulation of an opponent's weapon. They are useful for training both staff and spear.
Combat with the Staff: The Moment of Truth - November 25, 2016
It is not unusual for sparring with the staff to feel awkward at first. There is a big difference between doing drills with a partner, and the chaos of combat against a non-compliant opponent who is trying his best to hit you. Stick with it.
What is Staff Fighting? - October 17, 2016
The staff has been a common weapon among the many cultures of Earth since ancient times. Over the ages, humans have used this basic weapon for self-defense and for contest.
The Art and Science of Staff Fighting - September 19, 2016
The staff, or bo, is one of the most common weapons in the martial arts.  Many karate schools include bo forms in their curriculum. I am here with Master Joe Varady, martial artist and weapons specialist, to talk about the staff.
Brain Damage: Do Football Helmets Help? - September 5, 2016
Recently, the National Football League is facing a 765-million-dollar lawsuit filed on behalf of more than 4,500 former players regarding the concussions and potential chronic traumatic encephalopathy (CTE) sustained during their careers. Similar lawsuits are underway against the National Collegiate Athletic Association as well as the National Hockey League, and football helmet maker Riddell is facing multiple lawsuits over claims about the effectiveness of their helmets at protecting athletes from concussions.
Sai Design and Fighting Theory - January 27, 2016
The correct length and weight of the sai varies from individual to individual. Of course, as with any weapon, the longer and heavier it can be without compromising the handling, the better it is in a combat situation. As the proverb goes, "One inch longer, one inch stronger" (一寸長, 一寸強, Yī cùn cháng, yī cùn qiáng).
Foam or Knuckles—Navigating the Illusion of Safety - January 18, 2016
If you really want to understand how gloves contribute to the safety of our athletes, especially when it comes to their brains, take a closer look at the physics behind taking a punch with a bare fist or a glove.
Sai: Ancient Marvel of a Weapon - December 7, 2015
Sai (釵, chāi) is perhaps most commonly known in popular culture today as the featured weapon of choice by the comic book characters Raphael of Teenage Mutant Ninja Turtles and Elektra of Marvel Comics. While it is not entirely clear how the sai was created as a weapon, it is widely accepted that the sai originated from mainland Asia several thousand years ago.
Guns, Knives, and the Hollywood Death Sentence - September 21, 2015
In order to become a successful screenwriter in Hollywood, you need to watch a lot of movies, so you can learn from the screenwriters who came before you, and so you can get a feel for what else is out there and popular today.  Unfortunately, this important part of a screenwriter's education is also how Hollywood ends up propagating and recycling incredibly stupid ideas over and over again to the point where the audience just accepts it without question.
Protecting the Brain from Trauma: A Home Experiment to Show We Can Do Better - September 7, 2015
If you put on a football helmet right now and smacked yourself in the head with your hands, you might notice you can hit yourself pretty hard before you start to feel pain. You could even grab a stapler or a coffee mug and hit yourself with that. If you are like me, smacking yourself in the head is the first thing you do when you put a helmet on, just to test it out.
The Players in Self-Defense - February 2, 2015
No matter what levels of force you need, the players stay the same. It is critical to be able to read the players. The threat dictates the situation. You must understand the problem before you can choose a solution. A charm predator is one thing. A drunk wanting to show off for a girl is an entirely different problem. You must learn to read threats and threat dynamics.
Avoiding Workplace Violence - January 26, 2015
According to the National Institute for Occupational Safety and Health, 18,000 people a week are victimized by some sort of workplace violence in the United States. In fact, although industrial accidents abound, homicide is actually the leading cause of death among female workers and the second leading cause of death for men.
I.M.O.P. Principle—Intent, Means, Opportunity and Preclusion - October 6, 2014
How do you know when it is legal to get physical with an adversary? Learn the I.M.O.P. (Intent, Means, Opportunity, and Preclusion) principle. All four of these criteria must be met before you have a good case for taking action. If one or more of these conditions are absent, you are on shaky legal ground.
Account for Adrenaline - September 1, 2014
When I took a defensive handgun course several years ago, I was taught to train for handling the survival-stress reaction commonly associated with actual combat. To simulate the reaction, we had to do as many pushups as we could as fast as we could for one minute.