Sports Science Topic - June 2, 2009
Michael Phelps has opted to change his freestyle to a straight arm recovery based stroke. Why did he do that, and more importantly do you think it will work?
Michael Phelps has opted to change his freestyle to a straight arm recovery based stroke. Why did he do that, and more importantly do you think it will work?
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OK the obvious answer to one of the questions is... he can do it because he IS Michael Phelps... sorry unacceptable, too much the easy way out... going to have to come up with something concrete... something Billy can get his teeth into. |
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Cos Its gives you more power to move forward but only if someone who was brutal strength with high speed muscle fibre or very flexible fella like Sullivan. I have tried it - its faster but worn out quicker than traditional stroke |
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As I understand and think it is significant to note, he is only using it for the 50 and the end of his 100. It seems to be a very short distance technique at this stage in its evolution. The rest of the time Michael has said he is staying with his old stroke. This also brings up that swimmers now may have to learn at least 2 different freestyle strokes if they are going to compete in sprints and other distances. I've noticed that elites like Hackett use slightly different timings for the 1500 and his shorter events. This change in timing might be considered another version of freestyle. Is this evolution going to make it more difficult for future athletes to compete in a variety of events? How many different timings or techniques can an athlete master and be able to be competitive at an elite level? |
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I have been playing around with this for one of my kids and it seems to be working. This is a girl that is a fairly fast swimmer, and despite having a decent time in the 50 free (and winning it at the 12 and Under State Meet last season), she didn't seem to have the stroke rate that would allow her to continue to progress in that event. She is now attempting to recover the straight arm higher rather than wide, in order to drive the hips a bit more, and to bring gravity and momentum into the arm recovery. It is tiring, and she is struggling to hold it for an entire long course 50. This past weekend, she was able to hold it most of the way but had a couple of weird breaths at the end. It seems to be harder to try to find where to fit the breath in. She switched into it at the end of her 100 free and it helped her finish strong. When she uses it, she seems to blaze down the pool. She's dropped from 30.5 to 29.2 (LCM) this season. So far, I like it. I wouldn't necessarily use it for everyone though. |
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Several things come to mind. In my opinion a straight arm recovery helps with body rotation and it carries a lot of momentum that you can use for the pull. Another important point is that it allows for a higher stroke rate. When it comes to Phelps, I think that last point is especially worth keeping in mind. Phelps has tremendous endurance, but when you compare him to guys like Eamon Sullivan or Fred Bousquet it becomes obvious that he lacks the speed that they have.
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It would be interesting to have a drill in Goswim related to that !
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Straight arm recovery helps with body rotation?! Really?! I feel completely opposite... Phelps has won everything a swimmer can win, he's focusing now on sprint events like 100fr and 100ba. He needs a change and learning a new freestyle will open new goals for him and break a bit the routine. I think the change will do Phelps good. Camy, you can take a look at Scott's and Erik's freestyle, both featured in GoSwim DVDs. If you do not have the DVDs look at the trailers. You will see that the underwater action is pretty much the same (high elbow). Just the entry and the recovery of the arm is different. |
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I think he's bored and wanted to play with something new. Who knows if it will work. Every time Michael says he's going to try to do something, I keep thinking in the back of my head... HE CAN'T DO THAT... then he does it. I'm done questioning his swimming, I just watch. |
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If Michael and Bob are focused on the recovery more than the entry then it won't work for him. For me, this whole straight-arm sprinting concept started way back with David Marsh and Scott Tucker. Scott had one of the most beautiful looking freestyles in the world, but it wasn't fast enough. Watching that change take place, the one thing that stood out was the hand entry position from a high angle that gets more of the arm catching water sooner than a traditional freestyle. Even if you look at Fred Bousquet's stroke, his arms aren't completely straight on the recovery, but he hooks in and grabs water so fast because of the angle his hand enters the water. For those of you saying this style works only for sprinting, please explain Janet Evans to me? |
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I have tried some of my freestyle test sets with it and the first thing I noticed when I really got a "rhythm" going was my lats were burning, it is a set of 8x50 @ 3:00 max power each repeat. I'm gonna have to go with the connection of "angular momentum" from the recovering arm. Since the hand is much farther away from the body it is going to create more angular momentum than having the forearm and hand close to the body as it recovers. Obviously entering the arm more straight will result in some lift of the body creating less frontal resistance, but the disturbance on the surface probably about negates that effect. So it makes sense that straight arm freestylers still knife the entry for the most part. Phelps or Bowman was saying something about it helping slow his turnover down or something. In order to get the angular momentum it would probably be at midpull thorugh the push and the recovering arm would be going from up in the air into a deep catch and the shoulders would have to be rigid for the momentum to be conserved through to the pushing arm. The reaching and pushing angular momentum would also be present so it would potentially add power to the push phase I would imagine. Either way using different muscles at the end of a race that are not saturated in H+ ions has to be beneficial if it is still efficient in some way. That idea has been toyed with using the dolphin kick freestyle at the end to probably use less saturated muscle in the legs to finish with more power output. That is about all my thoughts on it. Maybe I have more, but I'm pressed for time at the moment. I agree with Dave that this is most definitely not a sprint only stroke. I use it sometimes when I'm tired in those long anaerobic/aerobic hard sets. Maybe people do not believe it would be ideal for distance since more small muscles would be involved, but more small muscles being used has it's advantages over one-two large muscles apparently. Obviously the body can be trained to filter those smaller muscles quick enough! We have to remember how SKINNY Janet Evans was though. Looking at her from a front view she had very little frontal resistance. Especially since she used one arm when it entered to help lift her body up higher out of the water, note her weird breath. I would bet if they could record her velocity back then she would have a spike in her velocity while she was finishing the push phase with angular momentum of one arm and using the other to lift her body out... |
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Also, this was an interesting read I found a while back.
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"Even if you look at Fred Bousquet's stroke, his arms aren't completely straight on the recovery, but he hooks in and grabs water so fast because of the angle his hand enters the water." - how I do that Dave? I am interesting to try his freestyle stroke to see what it is like. Listen Billy, Janet Evans is one of rare breed distance swimmer - its not easy someone to try copy her style to swim those long distances |
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Although Fred Buosquet and Michael Phelps' straight arm freestyle seem to ride in a fairly normal body position although neither of them use an incredibly large amplitude (almost 90degree knee bend) like Nystrand, nor are they as light and small as Janet Evans. I can see how it would allow you to get into a catch position faster by using the rotational momentum from the hand being so far away from the shoulder and that energy can be used to help drive the hand in deep when the arm is in such a weak position reached out in front. Since the muscles in that position are weak it is obvious that any momentum conserved from a straight arm movement would help get the hand deeper faster as long as the momentum is conserved. I am not too sure what the advantage of getting into the catch quicker is... I would lean more towards believing that the added force in the arm pushing back from mid pull would make a much greater difference, unless your goal is faster turnover for whatever reason. |
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What can I say? I think I nailed it on the head: |
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Yeah you nailed it, Dave - whether I try windmill stroke or traditiional one? what you think? |
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There have been some great comments in relation to this topic and as always Billy comes up with some great video’s to augment thoughts. I didn't know that double D was even aware that distance swimmers existed... must be a better student than I thought. On a funny aside to those of you who might not know this, but Barbara Evans (mom)was training Janet at lunch time most days of the week. All training was based off the concept of well this was your time on this set last time, so go faster this time. As I understand it, Bud didn’t find out until very late in the game prior to Seoul.
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Seems to me that Bousquet swims straight arm with a clear gallop, so I think if he can "get his brain clued in to how to manage" it, so can MP. |
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