How Swimming is Different From
Running
by
Terry Laughlin
The
world's best swimmers move through the water with grace, economy and flow, while
novices are awkward, clumsy and inefficient. But the rest of us can learn to
swim well if we take the time to master swimming as an
art before tackling it as a
sport.
How many
land-based athletes have concluded that swimming requires some exotic or elusive
kind of fitness after an experience like this: Joe, who can breeze through a
5-mile jog without breaking a sweat, decides to try a pool workout one day.
Within a few minutes, he’s panting for breath and wondering: “How will I ever
get in a decent workout if I can’t even make 100 yards without dying?”
Experiences like that convince many adult athletes that swimming is only for
those who swam competitively as kids, and suspecting that the time and effort
required to master may not even be worth it.
But
mastering the “swim challenge” is decidedly worthwhile. Not only is it ideal as
a restorative, general fitness workout for virtually any aging athlete;
learning to swim well creates the option to try triathlon or Masters swimming.
And I’ve yet to meet an otherwise well-rounded athlete who could not learn to
swim well enough to stay fit or tackle a triathlon. All they have to do is
discard everything other aerobic activities such as running has taught them, as
soon as they enter the pool.
Anyone from
occasional joggers to dedicated marathoners knows this fundamental truth:
Increase your mileage or intensity and your running improves. But when they
apply the same logic to swimming, most novices quickly achieve what one of my
former students christened “terminal mediocrity;” after a few months, no amount
of effort produces any further progress.
Here’s why:
The world records for the mile run and the 400-meter swim are virtually
identical. If you were to run once around the track with Alan Webb, America’s
best miler, he’d beat you easily, but -- even if you’re purely a recreational
jogger – by running easily and efficiently, you could nearly match the number
of strides he took to cover 400 meters. If, on the other hand, you tried to
swim 100 meters with American record holder Klete Keller, not only would he beat
you easily but – assuming you could complete 100 meters -- the difference
between his stroke count and yours would be staggering. Keller and other elite
freestylers can easily swim 25-yards in 7 or 8 strokes (counting each hand entry
as one stroke), while novice swimmers typically average 20 to 25 strokes for the
same distance.
And that
threefold difference in stroke efficiency is only half the story. A world-class
runner is about 90% mechanically efficient, meaning that 90 of every 100
calories expended produce forward motion, while approximately 10 are lost to
muscle heat, ground friction, wind resistance, etc.. Because water is 900 times
thicker than air and highly unstable as a medium for applying power, a
world-class swimmer is only 9% mechanically efficient -- which means the typical
novice swimmer achieves energy efficiency of perhaps 3 percent. Thus, the path
to swimming-improvement is not to make more energy available through training,
it’s to waste less energy by improving your stroke. If you can increase
your mechanical efficiency even modestly -- from, say, 3% to 4% -- that will
translate into a 33% improvement in your swimming capacity. No workout program
can produce those kinds of results, but I’ve routinely seen swimmers in Total
Immersion workshops achieve that sort in a single weekend.
Running is
a sport; swimming is an art.
What makes
swimming different? Simply put, running is a natural activity, while swimming is
a “natural struggle.” The world's best swimmers move through the water with
grace, economy and flow, while novices are awkward, clumsy and inefficient. You
needn’t lose any sleep if this describes you; my extensive teaching experience
suggests that very few people have the innate ability to swim fluently. But I’ve
also learned that the rest of us can learn to swim well if we take the
time to master swimming as an art before tackling it as a sport.
When you focus on swimming more and more yards, you just imprint what I call
“struggling skills.” Instead focus on swimming short distances slowly without
fighting the water or yourself, then patiently develop your ability to do that
for progressively greater distances or at marginally faster speeds. Here’s a
quick plan for learning to move like water in the pool:
1. Swim
slowly. Racing the clock -- or other swimmers -- will only cause you to
thrash and splash. Swimming slowly is the best way to begin developing habits of
efficiency and economy. And while swimming slowly, practice the following:
2. Count
your strokes. Your best measure of efficiency is how many strokes you take
getting across the pool. Set an initial target 10% lower than your norm. If you
usually take 22 strokes per length (spl), make 20 your goal -- using ease, not
strain, to make it. After any length that exceeds your target, rest longer --
try five or more deep slow breaths as a recovery interval -- before starting
again. Allow at least two to three hours of cumulative practice, over several
30-minute sessions, to adapt before reducing your spl further.
3. Look
Down. Forget the old rule about looking forward; a high head position is bad
for your neck and back and creates extra drag. Look directly at the bottom and
focus on a long “head-spine-line.” Ask a friend to check that no more than a
sliver of the back of your head is visible above the surface.
4. Swim
Silently. Noise and splash are the clearest evidence of wasted energy.
Anything you do that results in a quieter stroke will also increase your
efficiency, lower your spl, and reduce fatigue.
5. Swim
less, drill more. If you find yourself unable to reduce your spl to a
consistent 20 or fewer strokes per 25 yards, your stroke inefficiencies are so
stubborn that every lap you do simply
makes them
more permanent better. The quickest way to build new “fishlike” movement
patterns is to practice skill drills rather than conventional swimming. Try
doing up to 80% of your laps in stroke drills for the next month or two and see
how your stroke reacts.
Happy laps!
Terry
Laughlin is founder and head coach of Total Immersion Swimming and the author of
Triathlon Swimming: Made Easy.
Read more articles like this at
www.totalimmersion.net.
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