Study of Speed In Throwing Arts

Laboratory of Sport and Health, Faculty of Sciences Sport and Physical Education, France.  seem to support what I have learned in the throwing arts. I also found this inRamdane Almansba post in Judo-the-Blog It Stated the following:

The aim of this work was to verify if there was a difference in throwing speed performance between heavier

and lighter weight categories in judo. Sixteen judoists aged 18±3 years-old, eight considered in the light weight category (-73 kg) and eight considered in the heavy weight category (+73 kg) participated in the study. A force/velocity test was used to determine the anaerobic power, strength, and pedal speed for each subject. Three trials of Nage-komi exercise, each comprised of 15s sets of Osoto-g

ari, Uchi-mata and Ippon-seoi-nage throws were performed by each subject to ascertain throwing speed. Throws within the sets were intersected by one period of 3 minute passive rest while the trials were separated by one period of 10 minute passive rest. Heart rate and the greatest number of throws within each set were measured for three trials.
We use

d an ANOVA to compare the number of throws between the two weight categories and a

“Student” test when the difference was significant. A correlation was used to examine the link between the different parameters.
Results

show that in the force/velocity test pedal speed did not differ between the two categories. However, there was a significant difference between the two categories when throwing speed was measured by the number of throws executed during the Ippon-seoi-nage and Uchi-mata, but there was no significant difference between the two categories for Osoto-gari.

Our study showed that the throwing speed of judoists represented by number of throws appears to be significantly different between the two categories. The lighter category has more speed than the heavier c ategory using arm technique (Ippon-seoi-nage), while the heavier category has more speed using leg technique with half turn of the attacker’s body (Uchi-mata). As a result, throwing speed is related to the type of technique used and not weight category…”

James

More Resources;

Sanshou + Modern Kung Fu?— James–Modern Kung fu

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Devin Willis +Defensive Tactics

An ESI Graduate ,Agent C.T Wrote the following:

“…I worked from about 1987-1991 Devin Willis was hired as an instructor in about 1991 and taught us for about a year before leaving for a Protection (Bodyguard) career

Mr. Devin Willis “There is a difference between martial arts (such as Aikido or Modern Kung Fu) and Defensive Tactics- he loved them both and both have uses.

D.T- Must Emphasize speed, simplicity and effectiveness. can not take years to perfect.It MUST focus is on real world self-defense (real cases of violence against agents or officers) empty-hand tactics, striking tactics, handcuffing, baton tactics, Person searches, falling and ground tactics, edged weapon , Tear gas tactics, handgun retention or handgun disarming, armed attacks etc

Some examples are located below

Martial Arts– takes time to learn and practice, most of us while practicing M.A do not worry about a handgun being strapped to our hip or ankle.

We do not worry about rolling around on the ground with a guy hyped on drugs reaching for the gun. While trying to punch you in the face.

With that said I do think after years of study and working out in the field you will learn quickly what will work and what will not and become effective at protecting yourself.

According to my notes we covered:

Joint Controls – the effective use of joint manipulation both in a defensive and as a control for escorting a suspect capacity.

Impact Weapons-cover the standard and advanced use of common impact and control weapons used in that era. These will include the expandable baton and the Guardian.

Effective Use of Strikes– nontraditional strikes as a defensive tool. A major focus will be placed on stun strikes.

Defense Against Weapons -focused on defending against an edged/blunt weapons designed to disarm the attacker. We also learned disarming persons armed with a gun. We learned effective movements for both handguns and long guns.

Ground Defenses-l dealt with defenses on the ground and techniques to escape and control while on the ground.He called it the W.EB

It is good to read that Mr. Devin Willis is doing well and that Darin Williams is also doing GREAT! I plan on contacting Darin , letting him know the things taught to me through his company has made me a better protection agent …”

I rember when this was going on and Devin loved training Security and law enforcement.

James

Sources:

Defensive Tactics at Select Patrol-Agent C.T
ESI Graduate

I remember Training With Devin Willis And Damon Willis–Modern kungfu Wetpaint com