Articles | YMAA

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.
Defending Against Multiple Assailants Part 2
July 25, 2016
The axiom that street violence is volatile and unpredictable could not hold truer than when facing multiple assailants.  Facing multiple assailants, let alone multiple armed assailants, is an extremely dangerous proposition.  Try to recognize the situation as soon as possible such as if two people are walking towards you and they suddenly fan out to your left and right.  Running and escaping is your best solution.
Defending Against Multiple Assailants—Part 1
July 18, 2016
Street violence is volatile and unpredictable.  An attacker will seek every advantage including ambushing you in concert with multiple confederates.  You may well find yourself in a "negative five" position or initially unprepared for the fight of your life.  Krav maga (Hebrew for "contact combat") developed for the Israel Defense Forces will provide you with the instinctive tools and ability to fight for your life and win.
Optimizing Force Using Krav Maga
April 12, 2016
A combative strike will have optimum force if you accelerate your strike in combination with correct body mechanics. Principally, this involves a total body weight shift through the target. Physics teaches that acceleration times mass equals force. Your strike will generate more force if you accelerate your speed as you extend your arm and put all of your body weight (mass) behind your strike. This requires proper body positioning and technique.
The Krav Maga Advantage
March 29, 2016
The key is your mind-set: to neutralize an opponent quickly and decisively. In fighting sports, the following tactics are generally banned: eye gouges, throat strikes, head butting, biting, hair pulling, clawing, pinching or twisting of the flesh, striking the spine and the back of the head, striking with the tip of the elbow, small joint manipulation, kidney and liver strikes, clavicle strikes, kneeing or kicking the head of an opponent on the ground, and slamming an opponent to the ground on his head. These are exactly the combined core tactics krav maga emphasizes.
Some Krav Maga Guidelines - February 22, 2016
Footwork and body positioning combined with timing, whether standing or prone, allow you to simultaneously defend and attack, leading to seamless combative transitions essential to retzev or "continuous combat motion."
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).
Krav Maga's Training Philosophy - January 25, 2016
Krav maga is designed around a few core tactics to counter a myriad of attacks. Defenders get tools for their toolboxes along with a general blueprint for how to use them. Imi's goal was survival in any defensible situation. While there are no set solutions for ending an armed confrontation, there are preferred methods using violence of action combined with retzev, or "continuous combat motion."
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.
Kravist Weapon Defense Drills - September 26, 2013
Working with a good partner to practice and perfect weapon defense techniques is instrumental to your development as a kravist. The force and speed of the mock attacks should be gradually built up over time as your defensive skill sets improve.
Hand Defenses Against Edged Weapons - August 27, 2012
Prior to covering krav maga weapon defenses, we need to revisit a few of krav maga’s control holds, two of which are known as cavaliers. Cavaliers are designed to use your powerful hip muscle groups and bodyweight to torque an opponent’s wrist to take him down while establishing strong control over the weapon for removal.
Krav Maga: Defenses Against Hot Weapons - July 9, 2012
If someone pulls a gun on you and does not shoot, he or she wants something. It is possible that he or she may still shoot you, but not before achieving a desired ends. When possible, compliance with the gunman’s demands is the best solution.
Krav Maga: Leg Defenses Against Edged-Weapon Attacks - June 18, 2012
You will need any and every advantage to defend against a determined assailant using an edged weapon. An edged weapon does not jam or run out of ammunition and can seriously injure you with every thrust or slash. A significant number of the population worldwide carries folding edged weapons or some other type of cutting instrument.
Grandmaster Li, Mao-Ching (李茂清) - March 29, 2010
Grandmaster Li, Mao-Ching (李茂清) was born in Qingdao city (青島市), China, on July 5, 1927. He first began training martial arts in 1934 when he was eight years old, under the instruction and guidance of his father and his cousin Shang, Huan.
Insights into Modern Day Martial Arts Training - February 17, 2009
Training does have to be adjusted and changed for modern day, but the principles and essence should remain the same. We are constantly striving to preserve the teachings of our masters, and we should be very cautious when to modify them.
Martial Arts in the 21st Century - Part 3 of 3 - January 22, 2009
There has been a clear and obvious downward shift in the average skill level of students, and even masters, of today compared to the masters and students of old.
Martial Arts in the 21st Century - Part 2 of 3 - January 15, 2009
In ancient times, many students would unconditionally sacrifice their lives to their training and beg masters to take them, often striving to prove themselves worthy for many weeks, months or years before they were accepted.
Martial Arts in the 21st Century - Part 1 of 3 - January 8, 2009
My Long Fist grandmaster, Grandmaster Li, Mao-Ching, spent 23 years and 1 month in the Chinese military during harsh wartime conditions while he trained everyday, under Great Grandmaster Han, Chin-Tang, one of the foremost traditional martial artists and graduates of the Nanjing Central Guoshu Institute
Martial Arts Conditioning and Fighting - Part 2 - May 14, 2008
Traditional martial arts is not supposed to be glamorous, and conditioning is not a very glamorous process, being a very repetitive and monotonous type of exercise requiring many years of training.
Martial Arts Conditioning and Fighting - Part 2 - May 14, 2008
Traditional martial arts is not supposed to be glamorous, and conditioning is not a very glamorous process, being a very repetitive and monotonous type of exercise requiring many years of training.
Martial Arts Conditioning and Fighting - Part 1 - May 9, 2008
Through many years of history, experience, and practice, martial artists realized that in a fight, there are generally three factors that determine victory.
Martial Arts Conditioning and Fighting - Part 1 - May 9, 2008
Through many years of history, experience, and practice, martial artists realized that in a fight, there are generally three factors that determine victory.