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  #11  
Old 03-07-2011
Ken B Ken B is offline
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Join Date: Aug 2009
Posts: 118
Ken B
Default Woops

I didn't explain myself well, brevity was always my fault. I agree with the criticisms, rotation of itself gets you nowhere but I argue that the torso, hip drive, call it what you will provides most of the energy we use to move forward. My torso is the engine, my tensed (toned) body is the transmission, my arms and legs are the wheels on the road. As I understand it TI actively discourages me from pulling too hard or flailing with my feet.
As for propulsion I suspect Grant's breakdown is about right. Since my first reply I have had a swim in our now flooded river. I gave in to the temptation to pull hard when it seemed I was being swept out to sea. As I type I can feel the damage in my shoulders.

Ken
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  #12  
Old 03-07-2011
WaiNaam WaiNaam is offline
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Join Date: Feb 2011
Location: Bangkok, Thailand
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WaiNaam
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1. Rotation/Weight Shift 40%
2. Lengthen/Spear 30%
3. Pull 20%
4. Kick 10%

This was an interesting puzzle to think about and I realize I don't really know what is optimal....
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  #13  
Old 03-07-2011
slevinf slevinf is offline
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slevinf
Default Lostinthedetail

Hi everyone, my first post
I am interested to see the % breakdown
My thoughts are that one shold be discouraged from the pull aspect as we should "roatate and glide over the arm"
I am a tad confused regarding this
My breakdown would be
Rotation 50% but conscious to rotate enough so that my left hip is below
my right ( I had noticed that I was not achieving this and my subsequent
drive with my right hand was not as effective)
Streamline 50%
I am a newbie x 4 mths and trying to keep it simple
Enjoying the journey
Thanks
Fergal
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  #14  
Old 03-07-2011
aquarius aquarius is offline
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aquarius
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Quote:
Originally Posted by Ken B View Post
My torso is the engine, my tensed (toned) body is the transmission, my arms and legs are the wheels on the road. As I understand it TI actively discourages me from pulling too hard or flailing with my feet.
Since we have among the "propulsive elements" things that give per se no propulsion at all (rotation), why isn't breathing mentioned? If the torso is the engine, what is the fuel?

I wonder if these breakdowns don't tell us more about the mindsets of TI swimmers than the actual mechanics or physics of swimming.

I also wonder what the breakdown would be for the different "balancing elements".
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  #15  
Old 03-07-2011
CoachKris's Avatar
CoachKris CoachKris is offline
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Rotation itself can provide good bit of propulsion combined with firm catch if arm spearing into water has enough momentum:

http://www.youtube.com/watch?v=AeBYur3k6_0

in my case:

distance work 2bk
50% rotation - hip drive (1)
40% catch and firm grip all the way through and to clear it up its more about transiting energy from rotation into propulsion rather than pulling hard (1)
10% legs (1) - I mainly kick to shift weight and start hip drive
so they all kind of fall into rotation ;)

sprints 6bk
40% rotation
30% grip and stronger pull
30% on legs


spearing and lengthening your body falls more into streamlining in my opinion, yes it makes your propulsion more efficient but its not generating additional propulsion as its purpose is to reduce drag
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