Wednesday, June 26, 2013
USA World Championship Trials
And 6 More Things That Coaching Has Taught Me...
Links of the day with Jocelyn Jay
Two ingredients that make Passion work in your life - http://ow.ly/lZBKz
Psyched out by the competition? http://ow.ly/
Tuesday, June 25, 2013
Oops... not what I meant.
A Link From My Mommy
Friday, June 21, 2013
What Are You Practicing?
Wednesday, June 19, 2013
Links Of The Day With Jocelyn Jay
In defense of sleep...how much? When? http://ow.ly/m3qq4
Fathers, stop coddling your kids - Ruben Navarrette says it's time for fathers to set the standards on their kids instead of the other way around. - http://ow.ly/m8NIn
Why do we Fall - "Limits, like fears, are often an illusion" - Why Do We Fall - Motivational Video
Tuesday, June 18, 2013
Email From Sean Baker at Mare Nostrum
date: | Tue, Jun 18, 2013 at 6:16 AM | ||
subject: | Mare Nostrum tour |
Here are my top 3 observations while on the Mare Nostrum tour...
1-The best athletes are reliable from one meet to the other and from one performance to another. They have the ability to stand up and deliver tough swims in tough circumstances.
Most notably:
Belemonte (Spain) swam a negative split 800 (4:15/4:10) and then within 10 minutes, got up and raced a 4:39 400im finishing in 1:01-1:02
Hirai (Japan) swam heats, then came in to the B final warm up at 3pm, did 2 rounds of:
6x100@1:15 holding 1:00s
4x50@:50 (1-EZ 3-fast) at :29 seconds/31sc and second round at :28/:27s
Then swam another warm up at 5 pm and raced the 1500 in 15:01!
Chad LeClos (South Africa) the day before he raced, went 8.5km in the am (60x50@:40 holding. :30s) and 5km in the evening for 13.5km and the next day swam 100 Fly in :51! Next day 200 fly in 1:55. He now goes to Hungary for two weeks of 100km training/week and then will try to go 1:55 again BEFORE tapering.
2-Watch out for the Danish women...they are strong, lean and very fit. Every day they did some sort of Dryland routine before & after to keep toned. Pederson went 2:21 with a final split of :35 and 17sc! I talked to her coach and he is aiming to get her to go all the last three 50s at :35... Add it up and she may go 2:17-2:18 soon...new WR.
3-It's not enough to be talented and dedicated if you want to win on the international stage. It requires an incredible amount of work in and out of the pool...More than I think most realize (myself included) Athletes have to be extremely fit and lean in addition to being masters of their craft. PRECISION jumps to mind...in every technical element. Even in the women's 100Free final, Jeannette Ottesen Grey destroyed everyone in the first 15-20m just on underwater break out precision...it was over by the 30m mark and she was building into the 50!!!
Sean
Friday, June 14, 2013
Father's Day
- A teacher has no life, they live at the school.
- My mom enjoys making my bed and making my lunch because thats the job of a mom.
- My dad loves to work because thats what he does.
- An athlete doesn't do anything else, they do that sport and then disappear until I see them again to do that sport.
- A coach coaches all the time because they love it.
Wednesday, June 12, 2013
Just a thought...
Many teams lack experience as a relay and don't practice the important aspects, but we expect individual athletes at a world level to be able to execute and have a world class relay? Wouldn't it make sense to encourage club teams to put together relays and practice towards qualifying for the large meets? Is there a reason that we don't do this or we just haven't thought of it? I welcome feedback because these are honest questions that I do not know the answer to.
Anyway, OFF THE DECK episodes that were filmed in Santa Clara over the last 2 weeks can be found below. My podcast that was recorded on the trip can be found here and previous blog posts from the trip can also be found below this post. Be sure to check them out.
Tuesday, June 11, 2013
Links of the day with Jocelyn Jay
Sleep deprivation and Performance - http://ow.ly/lTV2v
Sunday, June 9, 2013
First Practice Back
I arrive back in Georgetown at 1:30am and was up at 6:15 for practice this morning (Sunday). Call me what you will; just don't say I'm not committed!
I brought in high school track coach, David Hyde, to work on actual track starts this morning with the intention of working specifically on the following things:
1.) Hip position: I wanted my athletes to learn to have their hips high while balancing forward and eliminate the "chest resting on their thigh" start position.
2.) Driving Forward: I wanted my athletes to work on staying low after the start and drive forward - not standing up after the start or jumping upwards.
I believe that teaching my athletes this skill would assist in their overall diving skill set and it certainly made them more aware of both of the above aspects of the start. I would recommend trying this as an experiment. If nothing else, learning a new skill can be beneficial to the overall skill set of any athlete.
A special thanks to Dave for his help this morning!
Saturday, June 8, 2013
I Lied - 1 More Post - Day 6 Training Camp
Friday, June 7, 2013
Training Camp Day 5
Thursday, June 6, 2013
Training Camp Day 4
Wednesday, June 5, 2013
Training Camp Day 3
Links of the day with Jocelyn Jay
How processed foods are killing you one bite at a time! Do you know
how factory foods deplete your body and mind? Need some additional
inspiration to start making healthy, real food choices? -
http://ow.ly/lEpKf
5 ways to relax before your next big swim - http://ow.ly/lFTug
The Psychology of motivation explained - 3 factors that can transform
work into play - http://ow.ly/lFV0S
Tuesday, June 4, 2013
Day 2 Training Camp
Monday, June 3, 2013
Day 1 Training Camp
Sunday, June 2, 2013
Guest Post: Ryan Atkison
Lorente, S., Cetkin, E., Bello-Ochende, T., Meyer, J.P., & A. Bejan. Journal of Theoretical Biology 308 (2012) 141–146.
In this paper, the authors attempt to show that an optimal finger spacing exists for maximal paddling force in human swimming. Previous studies have modeled the human hand and shown through simulation that slightly spaced fingers have higher drag coefficients than hands with either no spaces between fingers or with large spaces between fingers. However, since these simulations have been based on models of specific individual hands, they have not allowed appropriate scaling rules to be adopted; and, have not mathematically optimized the spacing between fingers.
The results of this study validate previous results that drag force is greatest when fingers, or in this case four cylinders, are spaced slightly apart. The authors offer a theoretical prediction that the fingers must be spaced twice the boundary layer thickness of one finger. Subsequently, the authors use computational fluid dynamics to predict that the optimal spacing between cylinders is 0.2-0.4 times the diameter of each cylinder (finger) at Reynolds numbers from 20 to 100. Fortunately, these findings can be interpreted with a basic understanding of fluid dynamics and biomechanics…
First, these simulations are performed on four cylinders that are not connected in any way. Human fingers are connected to hands, which are connected to forearms, and so on. The fingers occupy a small proportion of the propelling area of the arm, so any gains offered by optimizing finger spacing are negligible compared with gains offered by optimizing the orientation of the hand, forearm and upper arm during pulling actions.
Second, the authors use the thickness of a boundary layer as a reference for spacing, which is far too small to measure or control. When water flows around a solid object the molecules that directly contact the object’s surface stick to it, and slow down the adjacent molecules. This thin layer of water surrounding the object is called the boundary layer. Since the thickness of a boundary layer is measured in molecules, this spacing is not something that can be detected by the human eye or actively controlled by a human swimmer.
Third, the simulation results do not appear to be congruent with the initial theoretical predictions (0.2-0.4 times the diameter of a finger is a lot larger than twice the thickness of the boundary layer!). This is easily addressed by looking at the range of Reynolds numbers used in this simulation. The Reynolds number (Re) indicates whether the flow around a rigid body is laminar (smooth) or turbulent (chaotic). A very low Re indicates the flow is predominately laminar, whereas a very high Re indicates predominately turbulent flow. In competitive swimming this number is high, in the range of 10,000 1,000,000, indicating predominately turbulent flow. Thus, since these simulations were performed in low Re, these specific findings are irrelevant to human swimming.
Finally, humans come in very different shapes and sizes. Fingers are rarely of uniform thickness, and for most, the joints are thicker than the rest of the finger. This results in small spacing between each finger even when the joints are pressed together. Thus, it is nearly impossible to eliminate finger spacing!
- Ryan