Swim smooth has an interesting pair of videos that makes the argument that minimizing strokes per length isn't the same thing as maximizing efficiency. Janet Evans and Laure Manaudou are cited as examples of swimmers with high strokes per length and a faster turnover. Elite triathletes with shorter strokes are also cited. The idea is not to advocate everyone use a shorter stroke but just to say that if a shorter stroke works for you don't throw that away in pursuit of lower strokes per length.
I wonder if swimming with a shorter stroke and higher turnover is analogous to using a lower gear when cycling (spinning versus grinding). People generally acknowledge that the optimal gear to use will vary from individual to individual. Extrapolating from that line of reasoning, perhaps elite swimmers using longer strokes do so because they have greater strength/more power that allows them to use a longer stroke/higher gear rather than because they worked on lengthening their strokes (although the two are clearly related).
YouTube- Swim Smooth: What Is An Efficient Freestyle Stroke? Part 1
YouTube- Swim Smooth: What Is An Efficient Freestyle Stroke? Part 2
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So how does one measure efficiency? Fewest strokes, fastest time for a given distance-- like swim golf? It it 1. or 2. below?
1. If it takes me 80 seconds and 50 strokes to swim 100 yards, it is more efficient if I take 48 strokes and still maintain that 80 second pace?
2. Or is it more efficient if I take 50 strokes and improve my time to 78 seconds for 100 yards?
I always thought it was 2 and I don't have any basis for that other than an old post by Paul Smith wherein he described how he descends 25 yards while maintaing the same SPL:
So after all the endless discussions on this topic....and the challenge in trying to "coach" in writing I actually found myself helping out a local pro triathlete last week with just this thing.
As is the case on this forum and other times I've attempted to explain; catch, rotation, lengthening of stroke, maintaining stroke while accelerating, etc. I found again that some folks have a "natural" sense of feel for this stuff....its VERY hard to coach feel.
So.....I spent yesterday breaking down my stroke wit assistance from Jane Scott (Boulder Coach) and trying to better explain what it is I do unconsciously that others have to think about...some observations:
- In a series of 25's (all from a push) I tasked myself with keeping 11 strokes per lap and to descend each 25 till I added a stroke.....my goal to see what changed.
- First observation....I can literally slip my hand/forearm/arm thru the water without feeling any sense of "pressure" and take 11 strokes as slow as 25 seconds.....I can accelerate and descend down to 12+ keeping the same 11 strokes....faster than that my kick "kicks in" and I add another stroke and get to the low 11 range.
- What was different? First thing I noticed is that although it seems my hand track stayed the same on each 25 there was an ever increasing sense of "pressure" I could feel as I got faster. I would equate the sensation change as dramatic as moving my hand thru air on the easiest 25 to literally feeling the sensation I would feel pushing on the wall to climb out of the pool.
- So what happened? First I was able to discern a "tensioning" of my arm...but further examining this with Janes help it became apparent that this "coiling like a spring" as she described it was coming from my core....very interesting to really focus on this and realize how much that changed everything.....from there it extended to my catch....and ultimately the entire stroke movement thru the water.
- What next? We asked a few other swimmers to work on this as well and t change their focus to their core and it was amazing that all of them said the same thing....they could not feel anything in that area...when we asked to try and tense it resulted in other parts of the stroke falling apart...
- Thoughts for now; I really do think that to change these things takes an incredible amount of breaking down the stroke via drill work as has been discussed over and over here...the difference is really taking the time to think specifically how these drills translate to actually swimming...so many people I see do drills without a real sense of their purpose.
I think the key drills for me at this stage continue to be variations of sculling, the "arrow" drill shown on a link in an earlier thread that U of A uses and head up swimming (tarzan).
So how does one measure efficiency? Fewest strokes, fastest time for a given distance-- like swim golf? It it 1. or 2. below?
1. If it takes me 80 seconds and 50 strokes to swim 100 yards, it is more efficient if I take 48 strokes and still maintain that 80 second pace?
2. Or is it more efficient if I take 50 strokes and improve my time to 78 seconds for 100 yards?
I always thought it was 2 and I don't have any basis for that other than an old post by Paul Smith wherein he described how he descends 25 yards while maintaing the same SPL:
So after all the endless discussions on this topic....and the challenge in trying to "coach" in writing I actually found myself helping out a local pro triathlete last week with just this thing.
As is the case on this forum and other times I've attempted to explain; catch, rotation, lengthening of stroke, maintaining stroke while accelerating, etc. I found again that some folks have a "natural" sense of feel for this stuff....its VERY hard to coach feel.
So.....I spent yesterday breaking down my stroke wit assistance from Jane Scott (Boulder Coach) and trying to better explain what it is I do unconsciously that others have to think about...some observations:
- In a series of 25's (all from a push) I tasked myself with keeping 11 strokes per lap and to descend each 25 till I added a stroke.....my goal to see what changed.
- First observation....I can literally slip my hand/forearm/arm thru the water without feeling any sense of "pressure" and take 11 strokes as slow as 25 seconds.....I can accelerate and descend down to 12+ keeping the same 11 strokes....faster than that my kick "kicks in" and I add another stroke and get to the low 11 range.
- What was different? First thing I noticed is that although it seems my hand track stayed the same on each 25 there was an ever increasing sense of "pressure" I could feel as I got faster. I would equate the sensation change as dramatic as moving my hand thru air on the easiest 25 to literally feeling the sensation I would feel pushing on the wall to climb out of the pool.
- So what happened? First I was able to discern a "tensioning" of my arm...but further examining this with Janes help it became apparent that this "coiling like a spring" as she described it was coming from my core....very interesting to really focus on this and realize how much that changed everything.....from there it extended to my catch....and ultimately the entire stroke movement thru the water.
- What next? We asked a few other swimmers to work on this as well and t change their focus to their core and it was amazing that all of them said the same thing....they could not feel anything in that area...when we asked to try and tense it resulted in other parts of the stroke falling apart...
- Thoughts for now; I really do think that to change these things takes an incredible amount of breaking down the stroke via drill work as has been discussed over and over here...the difference is really taking the time to think specifically how these drills translate to actually swimming...so many people I see do drills without a real sense of their purpose.
I think the key drills for me at this stage continue to be variations of sculling, the "arrow" drill shown on a link in an earlier thread that U of A uses and head up swimming (tarzan).
