maandag 17 november 2014

Discus throw handbook - notebook

Discus throw handbook - notebook by JJefArt
Written by: Jeffrey Koelewijn from the Netherlands

Males throw with a 2 kilogram discus
Famales throw with a 1 kilogram discus

Note that males and females below the age of 19 throw with lighter weights

The discus circle is 2.5 m in diameter
The two kilogram or 4.4 lb discus has a diameter of 0.219 m
the one kilogram or 2.2 lb discus has a diameter of 0.180 m

Before starting I'd advice to do a good warm up.

I'd advice to do some warm up throws to.

It's best to use throwing shoes when throwing
as it's a lot better for the knees and ankles
and it makes moving around on the balls of the feet
a lot easier and smoother.

Be carefull not to make too much throws per training
12 to 20 throws should be enough and reduces the chance of injuries.

The discus Should be placed on the last part of the fingers.

Make sure the discus leaves the hand finger after finger.
The pointing finger is the last finger to have touched the discus.

Keep the throwing arm fully extended.
-Keep the throwing arm in the same position as in the last moment of the wind up
 so the tension does not dissapear
 And use this tension while making the throw

Throwing angles:
The throwing angle should be between a 35 degree to a 45 degree angle
Using the right angle can result in further throws.

Chin angles:
Don't look down while doing the rotational or while throwing.
The chin should be up slightly when making the throw.
-Looking down while throwing also disrupts the kinetic chain
 and makes the inverted c less usefull

Go from low or medium low, to high and extended.
If you start pretty low do squats to increase upward power.

Foot placements in the beginning of the throw:
IMG_6214


Feet placement types:
Power stance phase:
Normal
Liniear
Closed duck
IMG_6213

Types of throwing:
Active release
-The feet come loose from the ground, sometimes a small jump
-just pivotting and rotating afterwards can
 also be called an active release
Fixed feet release
-The feet stay fixed on the ground

Block with the left leg:
A good block equals a better throw.
Work up, push against the blocking leg.
The stick method
 The leg is almost fully extended
The pole vault method
 Where the leg is bend, or bend a little
 and while throwing extends again

Power position or powerstance:
Asuming a powerstance
One leg in front one leg behind.
The hips and shoulders should form an x seen from above
And the toes and knee should form a line with the chest, seen from
above.
Between 70 to 80 percent of the bodyweight should be on the back leg
or the leg wich is leant on.
and between 20 to 30 percent of the weight on the front leg
The non throwing arm is held in front of the body.

A good throw is made doing the triple extension
Using and extending the feet, legs-knees and hips to create a kinetic chain.
The turning and twisting of the body and the use of the arms make the kinetic chain
complete and add aditional power.
The upper body should be strong enough to support the chain
and add aditional power.
The power for a good throw comes from the ground.

Use weightshifting (that's why between 70-80 percent of the weight is on the back leg)
for even further throws.


Tips:
It's safer for the suroundings to throw in a throwing cage
when discus throwing.
Always make sure the throwing area is safe.

Semi rotational or greek method:
A semi rotational.
The greek method starts with a twist up then the left foot is placed backward to
create a power stance.

Rotational:
-This is hard to explain in text
-You can also just watch a discus throw video on a website
The rotational starts by doing a wind up to the other side of
which you're going to move to this is to create tension
You should try and maintain this tention until the throw and use it.
Then the left foot turns in and the left arm moves to the side
Then the right foot makes a swaying or somewhat kicking motion
with on the end and normally a somewhat sideways kneeing motion is made
Then there's a short air time
Then the right foot is placed and the left foot follows as soon as possible
to come into a power stance and then the throw is made
Don't forget to use the non throwing arm to block or to create
extra rotational force.

A good and active left foot and leg can result in further throws

Pivot drills:
First get used to standing on the balls of the feet.
Pivot drills are done by pivotting on the balls of the feet
while rotating.
90 degree turns
180 degree turns
270 degree turns
360 degree turns
Some people can even do turns between 450 and 720 degrees.
You can do this with and without the discus

Tip: Do stability exercises

Powerstance pivot drills:
180 degree turns to powerstance
Backward turns
The right leg or right feet is the one that pivots
While the left leg constantly moves backward in to a powerstance

For active release throwers who rotate pretty much after the throw could do 360 rotational jumps

Inverted C:
The body creates somewhat of an inverted C while just after the power position
and the beginning of the throw
A lot of energie is stored, produced and released this way

Interesting way of training:
Focus on;
The wind up
Turning in the left foot
The throwing arm positions throughout the throw
Non throwing arm use and positions throughout the throw
Right leg swing or kick
Getting into the powerstance
The throw and the release
-
And combine afterwards.

long stick exercise:
Use a long stick of around 2 metres
held up behind the bck with two arms just below shoulder height
or around the middle of the back.
To learn better discus throwing technique;
Do rotationals, semi rotationals and power stance to throw technique
drills
-Rather not make violent movements while doing this exercise

Use a towel in the throwing hand to do rotationals semi rotationals
and powerstance to throw technique drills.
A traffic cone can also be used.
-Rather not make violent movements while doing this exercise

Hold the discus with extended arms and do 4 to 8 circles for example
Spinning around like this will help feel rotational
forces.
And be carefull not to fall after spinning in circles

Throwing with heavier and lighter weights once in a while can be effective.

Tip:
Leg agility (agility ladder for example)
and hurdle exercises can be done to improve footwork.

Tip:
In competition be carefull not to walk out of the ring to the throwing
direction as the throw will then be declared a foul.
Walk out of the ring to the non throwing direction.

Tip:
Check the biomechanics of the discus throw.

Discus throw highest and lowest points of the discus throughout the throw.
IMG_6172



Myotatic reflex of the chest muscles
By winding up at the beginning tension is increased on the chest and side area
this is used and released while throwing
The non throwing hand can also be used to increase the myotatic reflex.

The non throwing arm can be used multiple ways and in multiple angles.
Some keep their throwing arm almost extended to a 90 degree angle
others have the arm almost completely bend.
While throwing some people go from a 90 degree angle to an almost completely
bend arm.

Arms wingspan with discus throw:
A long wingspan is something you have or you don't
Having a long arms wingspan can result in further throws
As the distance the discus travels in circles becomes longer
During the rotational

Discus releases:
Throw the discus up and catch it again
Make sure the discus rotates a lot and is thrown properly
and catched around the way you threw it up in the air
Don't throw to high just around chest or head hight is enough
Catching is much easier like this and the next release can
be made soon after.

Warming up with the discus:
Discus releases
Right to left:
Throwing from one hand to the other and catch it around hips height
or slightly higher or lower
catch, hold and throw like the discus is thrown
This can also be done behind the body
Discus flips:
The discus makes a flipping motion and is catched again
don't throw it up to high

Get comfortable with the implement
Play with it

Do plyometrics like push ups and squats for overal conditioning.
Rocket jumps are also very usefull

Strength power and explosivenes training
Trainings like weightlifting, hang and power version and short sprinting can be done
to develop strength, power and explosiveness

Tip:
Also do flexebility training.

Technique times of professional discus throwers:
The time starts right after the wind up until the implement
leaves the hand
Elite, profesional rotational discus throwers:
around 1.10 seconds to 1.40 seconds technique times.

Getting these times with good technique can take a very long
time.

Good technique a lot of explosive power and good and fast speed equals a far throw.
Muscle memory also plays a role.

World records:
Discus throw world records:
Outdoor: 74.08 m
-He used the active release.
Indoor : 69.51 m
Both done with the rotational style

Specific strength training
Squats and front squats
 One third squat
 Half squat
 Full squat (be carefull with the knees)
Bench press
Olympic weightlifting
 Power hang cleans
 Power hang snatches
 Jerks
Heel raises
Front yoke walk
 Very good for the upper body
 The bar is hold on the front not on the back
 I'd advice to start with low weights
Lunges
 With very low weights
Plate twists
 Don't throw the plate that's another exercise
Arm holds
 Hold two dumbells side ways at shoulder height with extended arms
-use medium weights and don't do it long or to many times.
Do box jumps and rocket jumps
-A weight vest could be worn
Do sprint starts
and 20-30 metres sprints


Discus throwing was part of the ancient greek olympics.







Muscle fiber type IIb also called IIx
Fast twitch
Are recruited for very short duration and high intensity bursts of power
You can get an increase in this type of muscle fiber by doing very short and short
duration exercises at high intensity.
examples are:
10 to 30 metres sprints (although 60-100 will also produce these fibers)
1-3 3-6 reps rocket jumps
olympic weightlifting
-I'd advice doing hang power cleans and hang power snatches
 During the whole exercise you never go below a half squat-90 degree squat,
 normally even not below around a 45 degree squat
-Jerks
-1 to 3 reps squat or bench press
-Throwing (not to many throws and the right intervals)

Note that a discus throw or shot put throw technique time normally does not exceed 2 to 3 seconds.
And that the actual throw from the powerstance is done as explosive as possible.

maandag 29 september 2014

Small boxing handbook 12 by Jeffrey Koelewijn

Small boxing handbook 12 by Jeffrey Koelewijn
Written by Jeffrey Koelewijn

Maybe I should have called these books small boxing notes and ideas.
Because it looks more like a notebook made of notes thinking about boxing
and learning about boxing.


Don't forget that actual boxing is most important
 Sparring
 Shadow boxing
 Mitt work
 Bag and heavy bag work

Normally you train both stamina, speed and power while boxing
Here and there you could focus only on one or two things
 This can show talent and make you a certain type of fighter,
 specialising in for example stamina, speed or power.
But even though some people specialise you need all three
to be a good fighter


When it comes to stamina, speed and power you have
-Allrounders
-fighters that specialise or are very good in two fields
-Spcialists
 Stamina fighters
 Speed fighters
 Power fighters

Small tips against stamina, speed or power fighters
 If you fight a power fighter try and not get hit
 -This means don't really get hit or get a direct hit by his hardest punch.
 If you fight a speed fighter and you can't hit him drive him in to a corner
 If you fight a stamina fighter don't waste your energy


Tip against rushing opponents and what the hardest punch is to walk in to;
 The direct punch
 Forward momentum to forward momentum makes the biggest collision
Punching tips against bobbing and weaving
 The uppercut comes the hardest when he goes down
 The hook comes the hardest when he moves to the hook punch
 The downard hook or the downward direct punch (''pummeling'')
 works best if he goes up
Timing and observation is key


The dash punch or momentum punch
Can only be done if there is enough space
Can be dangerous if you walk in to a punch
It's done by making a very small dash or something more like a ''hop''
where the rear leg comes forward and then the front leg moves forward when the
rear leg touches the ground again and then when the front foot is placed the punch is made
Note that the punch is made ready during the dash or hop
This is not a pivot punch

maandag 15 september 2014

Even more push up variations

Even more push up variations
Written by: Jeffrey Koelewijn from Holland

Push up drilling:
Very small up and down movements
 In the up position
 In the half way down position
 In the down position

Back clap push up
 Do a clap behind the back

Behind the head clap push up
One clap behind the head

Triple clap push up
 Bending the body a little while going up can make this a little
 bit easier
 One clap in front of the body one clap behind the body one clap
 in front of the body
A little easier is to do a behind the head clap instead a behind
the back clap

Clap the knees
Do a knee clap

Tick the feet
 While jumping up from the push up position after
 doing a push up

Push up 360
Do a 360 spin
Jump up heigh enough by after doing a push up
with the hands and feet do a full spin on the spot and land again

push up 90 twist
Do a 90 degree twist

Push up 180 twist
Do a 180 degree twist
Also called the flying squirrel

Falling and explosive rebound
Fall into a push up position and go back to standing again

Doing push ups while the arms are way in front of the shoulders

Scorpion handstand push up

Holding a one hand handstand

Tick the arm in handstand
Tick the upper part of the arm with one hand and than the other hands
ticks the other arm with the hand you need to change your balance to do this

Handstand push up clapping
Do one clap in between

Planche push up clap
I don't think any one has ever achieved that

It's best to use a softer surface for this or do this in the sand
 Leaning on the forearms and holding that position
 While leaning on the forearms revurt back to a normal push up position
 and than back to leaning on the forearms again by getting up using the arms

A stepping bench can also be used to do push up agility exercises:
On and of the bench one hand after the other
On and of the bench by jumping on and of with the hands
One hand on and of the bench while the other supports
On and of the bench while in a one arm push up position

push up handbook exercises trainings and workouts

Written by Jeffrey Koelewijn from the Netherlands
Artist photographer and sportsman

There are a lot of exercises in this book some might be very hard
to do and need a lot of preperation or training

I'd advice to consult a trainer or a physical consultant
before starting any exercise.

A good push up is done by almost touching the ground with your chin
or nose and keeping the upper and lower body rigid
Inhale on the way down and exhale on the way up
The feet can touch each other or there can be some space in between them

Basic push ups and variations:
On the knees
Half way
 Until the elbows make a 90 degree corner
Normal
 Hands around shoulder with
Wide
Small
 The fingers can form a triangle

Pushing up from a height
 For example feet on a chair

Knuckle push ups
 two front knuckles
 three knuckles
Clapping push ups
 Clap in between reps
 Some people can clap two or three times
Finger push ups
 Ranging from 1 to 5 fingers per hand

One arm push ups
 On one arm this can also be done on the fingers
Handstand push ups
Planche push ups
 Where the feet are of the ground

Push ups can also be done with a weightvest or a backpack

Speed:
Normal
Fast
Slow
 10 seconds down and 10 seconds up for example


Holds and isometrics:
In the basic position
Half way down
In the down position

On one arm


Agility:
Push up steps
 lifting one arm up after the other
Push up jumps
 Both hands of the floor
Left right left right
 Where right is moved to the right and than left to the lef and right back
 to the basic position again and than left back to the basic position again
Small to wide jumps
X steps
 Where right moves to right up and than left to left up and than right
 back to the basic position and than left back to the basic postion
 and then right to right down and left to left down and than back
 to the basic positions again and so forth
Forward backward
Knuckle to palm
 One arm moves to the palm position and than the other one to the palm position
 and than back to the knuckle position

Experimenting with an agility ladder is also possible
The feet and legs might need to move along with the hands
Side ways can be done or in and out of the squares


Stability:
Arm to chest
 Where one arm after the other reaches to the chest
Ups
 One arm after the other to a forward facing position
Desert lizard
 Where the right arm and left leg are lifted up or the left arm and
 the right leg are lifted up
Arm up
 Where one arm after the other moves to an upward facing position
 right to the sky, the body is tilted to the side
Lift and push up
 Touch the chest with one arm and do a push up and than touch
 the chest with another arm do a push up again


Mobility:
Bomber push ups
 Almost like a dive
Side bombers
Sides
 While in the down position move to left and right
Push up to standing position
 Push off so hard that you come in to a standing position
 bending a little might make it easier
Off the floor
 Hands and feet of the floor while going up


Sets and reps:
Normal sets
 3x10 for example or 3x20
Pyramid sets
 10-15-20-15-10 with pauses in between
 or easier 5-10-15-10-5
3x3x?
 3x3x10 for example 3x3 sets of 10 repetitions

zondag 24 augustus 2014

an american football rugby training and extra equipment

For american football and rugby

Fill a rugby ball with sand and seal it again
You can do this by cutting an x into the ball and then put sand in it
using a funnel
Note that some rugby balls might be hard to fill or aren't qualified for this kind of thing

Hold the heavier ball and run around with it do sprint starts and do the agility ladder
If you hold the normall ball after doing it with a heavier ball it
will feel like a feather.
You can just train with a normall ball and sometimes with a heavier ball here and there.

You can also fill up a baseball with sand, it will weigh around 5 or 10 kilogram
I forgot the weight
It's harder to hold and will really train the holding of the rugby ball
You can also do the agility ladder with this and run around the distances ran over the field

You can also just use a medicine ball

backward sprint starts for shot put glide

For the glide shot put technique

Do backward sprint starts for the glide
Will increase power and explosive power

Sometimes do a backward 20 to 40 meter dash with explosive start

Be careful not to stop abruptly as that is bad for the knees and hips

zondag 17 augustus 2014

Small boxing handbook 11

Small boxing handbook 11
By JJefArt Jeffrey Koelewijn


Tip:
Don't foget the groin guard

Something to know
Boxing, also called; pugilism, prize fighting, the sweet science or in Greek pygmachia
The earliest known depiction of boxing comes from a Sumerian relief from the 3rd millennium BC
Later depictions from the 2nd millennium BC are found in reliefs from the Mesopotamian nations
of Assyria and Babylonia, and in Hittite art from Asia Minor
Boxing was part of the greeck olympics
Boxing was a popular spectator sport in Ancient Rome


I forgot a couple of things in small boxing handbook 10 when it comes to knuckles and punching
In bare knuckle punching the head it's possible to hit only with the middle finger knuckle
or only with the pointing finger knuckle
-Though this is pretty dangerous as you might injure that knuckle
And sometimes only the middle finger and ring finger knuckle will make contact
or only the pinky and ring finger knuckles
You can also just punch randomly or just punch


Slipping
rotates the body slightly so that an incoming punch passes harmlessly next to the head.
As the opponent's punch arrives, the boxer sharply rotates the hips and shoulders
This turns the chin sideways and allows the punch to "slip" past
A slipper will also most likely be a good counter puncher
Most of the time a slipper will immediately strike their opponent back

Sway or fade
To anticipate a punch and move the upper body or head back so that it misses
or has its force appreciably lessened
Also called "rolling with the punch" or " Riding The Punch''

Duck or break
To drop down with the back straight so that a punch aimed at the head glances or misses entirely

Bob and weave
Bobbing moves the head laterally and beneath an incoming punch
As the opponent's punch arrives, the boxer bends the legs quickly and simultaneously
shifts the body either slightly right or left
Once the punch has been evaded, the boxer "weaves" back to an upright position,
emerging on either the outside or inside of the opponent's still-extended arm
To move outside the opponent's extended arm is called "bobbing to the outside"
To move inside the opponent's extended arm is called "bobbing to the inside"

The cover-Up
Covering up is the last opportunity (other than rolling with a punch)
to avoid an incoming strike to an unprotected face or body
Generally speaking, the hands are held high to protect the head and chin and the forearms
are tucked against the torso to impede body shots
When protecting the body, the boxer rotates the hips and lets incoming punches
"roll" off the guard. To protect the head, the boxer presses both fists against the front
of the face with the forearms parallel and facing outwards
This type of guard is weak against attacks from below

Philly Shell or Shoulder roll defense
This is actually a variation of the cross-arm defense
The lead arm (left for an orthodox fighter and right for a southpaw)
is placed across the torso usually somewhere in between the belly button and chest and the
lead hand rests on the opposite side of the fighter's torso. The back hand is placed
on the side of the face (right side for orthodox fighters and left side for southpaws)
The lead shoulder is brought in tight against the side of the face
(left side for orthodox fighters and right side for southpaws)
This style is used by fighters who like to counterpunch


Check hook
A check hook is employed to prevent aggressive boxers from lunging in
There are two parts to the check hook
The first part consists of a regular hook
The second, trickier part involves the footwork
As the opponent lunges in, the boxer should throw the hook and pivot on his left foot
and swing his right foot 180 degrees around
If executed correctly, the aggressive boxer will lunge in and sail harmlessly
past his opponent like a bull missing a matador
This is rarely seen in professional boxing
as it requires a great disparity in skill level to execute
Technically speaking it has been said that there is no such thing as a check hook
and that it is simply a hook applied to an opponent that has lurched forward and past
his opponent who simply hooks him on the way past
Others have argued that the check hook exists but is an illegal punch due to it
being a pivot punch which is illegal in the sport

Overhand right
The overhand right is a punch not found in every boxer's arsenal
Unlike the right cross, which has a trajectory parallel to the ground,
the overhand right has a looping circular arc as it is thrown over-the-shoulder
with the palm facing away from the boxer
It is especially popular with smaller stature boxers trying to reach taller opponents