AM RPIMIT ACEST EMAILFINA Sports Medicine Newsletter #8
FROM D. V. Lynch TO You
Mirceau,
I have been receiving these from Fina, and was wondering if you were getting these?
Also, who might you get similar types of newsletters from?
Hope your day is well, and your evening is better,
have some fun, and smile.
Best regards,
son Dan
-------- Original Message --------
I have been receiving these from Fina, and was wondering if you were getting these?
Also, who might you get similar types of newsletters from?
Hope your day is well, and your evening is better,
have some fun, and smile.
Best regards,
son Dan
-------- Original Message --------
| Subject: | FINA Sports Medicine Newsletter #8 |
|---|---|
| Date: | Fri, 20 Sep 2013 17:20:26 +0200 |
| From: | FINA |
| Reply-To: | FINA |
| To: | Daniel V. Lynch |
| |||||||||||||||||||||
Andrew...
Check out www.gamesgimmickschallenges/stroke gear for a picture of the tubing/paddles.
The term balance is commonly used in swimming but does not really describe dynamic balance or first-class leverage as Bill intended. Below is the meaning of balance in swimming as told to me by Professor Bill Boomer’...
Balance is a sensitivity that can be developed statically or dynamically. A swimming stroke could have vertical, horizontal and even rotational balance.
What naturally happens to your body in the water when you hold your breath and do nothing, when you just hang there and float? Some peoples' bodies will assume a low-hanging, almost vertical, dead man's float.
Obviously, the nearly vertical dead man's float and those positions in between are not very streamlined, as gravity pulls the heaviest parts of your body downward.
You will find that the most buoyant part of your body is between your armpits and the heaviest part is somewhere around the belt buckle. You have the choice about what floats and you need to counteract the force of gravity to bring your body into a relaxed, streamlined position, without using heartbeats (kicking) to do it.
Think of your body as a long lever arm like a see saw. The length of the balancing line in the lever system of your body runs from the point of your extended finger tips to your extended toes and includes your head/spine line.
A see saw is in balance when both ends are unsupported, stabilized, and motionless. The equation does not require equal lengths and weights on both sides of the balancing point. To balance, you need equal products: the relationships between length and weight.
The same conditions apply to the human body when trying to balance. To accomplish this, you need to be able to shift your center of mass towards your center of flotation.
This necessitates that you connect the product of the weight and length of your hips and legs on one side of the see saw to the following on the other side:
The product of the weight and length of your arms
The weight of your head
A downward pressure on the head/chest unit
The closer these two points, the less potential torque is in your system.
Creating and understanding this balanced system will eliminate the need to kick your body into a streamlined position. It also gives you a more stable base or platform from which to freely direct your arms.
In freestyle swimming, this establishes a rhythm line where the cycling rhythm (stroke rate) can originate at your hips - a critical condition for being able to change velocities in freestyle swimming.
When you swim you have subconsciously adjusted your kick, shifted your head weight, or used your leading hand/arm unit (platforming) to counterbalance technique errors. You have had to do this because your rhythm center has been located in your hands.
Wrong! If pace changes occur in the force-creating units (hands and feet) it will destroy the balance rhythm and posture; it puts the 'cart before the horse!'
Freestyle rhythm changes occur at your hips... and they never interfere with your balance or posture. You will need to evaluate the impact of any such change on your entire body - your hips, your head, your legs, your arms - as that change impacts your balance rhythm and posture.
We all have a natural rhythm to our stroke and that rhythm manifests itself along our balancing line which includes the head/spine and hips if we are to create this rhythm line.
We can then marry our own balance line (head-spine line) to our rhythm line and direct our energies outward towards our hands and feet, the force creators. Our hips will not bounce, our hands will not sweep out, and we will not need to crossover kick to compensate for our head every time we breathe.
.
As you know, the Shoulder Driven technique is normally utilised by sprinters but, I have seen Lotte Friis and David Davis use this technique during their 1500m swims. It requires the swimmer to have a quicker catch of their entry hand and a quicker release... thus, creating more arm strokes but with less time to rotate the hips.
Therefore, not as much power can be generated off each arm pull, but since there are so many more of them, it is the frequency that makes up the difference. Usually the shoulder rotates more than the hips with this technique, thus the name.
The best way to explain the technique that Bill and Milt are recommending can be thought of as a like walking...
When we walk or run, we basically anchor our foot down onto the ground and swing our body and our centre of mass past this fixed anchoring point. We then place our other foot down anchor it to the ground then swing the other side of our body past this new anchor.
The idea is for the swimmer to drop their arm into the water, anchor it onto the water then via rotation of the swimmers lower core combined with the swinging action of the other arm... swing themselves over that anchor, release it then placing another anchor down with our other arm. They then repeat these processes down the length of the pool.
This type of freestyle becomes potentially a very light stroke that utilizes the forces of Mother Nature – gravity and momentum that combine together with the rotary power of our mass over our anchor point.
This means that the technique Bill is teaching around the world is very much a Top side dominated stroke, because he wants the swimmer to utilize the mass of their body that rotates and falls into the water coupled with the mass of their arm swinging over into the water to transfer through their body to the established anchor as we they over it.
The recovery side (Top side) of the stroke utilizes the free energy from gravity and momentum that can be used on the Low side by maintaining the weight of the swimmers arm in the Front Quadrant whilst swimming. The swimmer will thus have a greater ability to balance in the water.
Watch this video of Shelly Ripple with the late Richard Quick of Stanford... after showing and telling the viewer why a swimmer should not use the 'Zipper Drill" Shelly swims a few laps full stroke emphasising all the above points
http://www.youtube.com/watch?v=xxKK7Wed9jg