Come join us for our Los Angeles Summer Swim Camp! Below are the details of each session. You can sign up for as many sessions as you’d like, but you can see why we encourage you to sign up for all 8 sessions and the enhanced sessions. Lots of Great material to cover! These sessions are for any swimmer that wants to swim faster. We have had swimmers and triathletes from age 7- 86 ranging in abilities from beginner wanting to learn a flip turn or a stroke, to Olympians. Sign up and we hope you’ll have a great time!
July 9th 9:30am -11:30am – Science of Swimming – Reducing Frontal Drag – Freestyle technique
July 9th 2pm-4pm – Race Club mobility routine – Increasing Propulsion – Freestyle technique
July 10th 9:30am-11:30am – Nutrition – Conforming to the Law of Inertia – Freestyle
July 10th 2pm-4pm – Yoga – Progression to a Fast Backstroke
July 11th 8am-10am – Strength training – Key Points to Improve Breaststroke
July 11th 2pm-4pm – Starts – Race Club Swim Strength Circuit
July 12th 8am-10am – Mental training – Developing an Easier and Faster Butterfly
July 12th 2pm-4pm – Race Practice and Strategy
July 9th 11:30am-12:30pm Breathing Technique and Breathing Patterns
July 10th 11:30am-12:30pm Dolphin Kick Technique and Drills
July 11th 10am-11am Back to Breast Transition Turn
July 12th 10am-11am Starts and Turns
-All 8 camp sessions plus 4 enhanced sessions = $1300 ($300 savings if you register by June 8th, 2016)
-All 8 camp sessions = $1000 ($200 savings if you register by June 8th, 2016)
-Each camp session is $150
-Each enhanced session is $100
*The schedule may vary slightly, depending on who is at the summer swim camp. We try to cater to each swimmer’s specific needs.
Location: Pacific Palisades High School, 15777 Bowdoin Street, Pacific Palisades, CA 90272
Come join us for our Labor Day Swim Camp in Islamorada, FL! Below are the details of each session. You can sign up for as many sessions as you’d like, but you can see why we encourage you to sign up for all 8 sessions and the enhanced sessions. Lots of Great material to cover! These sessions are for any swimmer that wants to swim faster. We have had swimmers and triathletes from age 7- 86 ranging in abilities from beginner wanting to learn a flip turn or a stroke, to Olympians. Sign up and we hope you’ll have a great time!
September 2nd 8am-10am – Science of Swimming – Reducing Frontal Drag – Freestyle technique
September 2nd 3pm-5pm – Race Club mobility routine – Increasing Propulsion – Freestyle technique
September 3rd 10am-12noon – Nutrition – Conforming to the Law of Inertia – Freestyle
September 3rd 3pm-5pm – Yoga – Progression to a Fast Backstroke
September 4th 10am-12noon – Strength training – Key Points to Improve Breaststroke
September 4th 3pm-5pm – Starts – Race Club Circuit Swim Strength Training
September 5th 8am-10am – Mental training – Developing an Easier and Faster Butterfly
September 5th 3pm-5pm – Race Practice and Strategy
September 2nd 10am-11am Breathing Technique and Breathing Patterns
September 3rd 12noon-1pm Dolphin Kick Technique and Drills
September 4th 12noon-1pm Back to Breast Transition Turn
September 5th 10am-11am Starts and Turns
-All 8 camp sessions plus 4 enhanced sessions = $1300 ($300 savings if you register by August 1st, 2016)
-All 8 camp sessions = $1000 ($200 savings if you register by August 1st, 2016)
-Each camp session is $150
-Each enhanced session is $100
The Art of Breathing Part II – How to Inhale & Exhale While Swimming Fast
First, I want to dispel one myth about breathing during intense exercise. In no sport does an athlete ever take a complete inhalation or expiration. The breaths during intense exercise are relatively quick and shallow, meaning that a little O2 comes in and a little CO2 goes out with each breath. It is an air exchange, not a deep breath.
The most detrimental part of breathing in swimming is likely not the associated increase in frontal drag, though that can be significant, depending on how the breath is taken, but rather the slowing of the stroke rate. Particularly in shorter races, a long, ‘star-gazing’ breath that slows the stroke rate can have disastrous consequences for both speed and inertia. To help with stroke rate and frontal drag, getting the breath quickly and with the least amount of change in body position is vital. In freestyle, that means turning the head minimally (keeping one goggle lens in the water during the breath), elevating the mouth to one side to meet the air, and rotating the head posteriorly (backward) rather than straight to the side or forward. In butterfly, it means extending the neck forward maximally for the breath, keeping the mouth close to the water, while maintaining the body in a more horizontal position. Or in cases where swimmers can’t seem to avoid lifting the shoulders too high for the front breath, breathing to the side in butterfly may be a better option.
While in land-based sports, the inhalations are immediately followed by expirations and vice versa, or, in other words, there is no ‘breath holding’, in swimming, there may be a theoretical advantage in doing so. On land, our weight does not change appreciably with each breath, but in the water it does. The weight of a swimmer ranges from zero with the lungs inflated to around 8 lbs (4kg) after a maximal expiration (there is always some residual volume of air in the lungs). The buoyancy of the human body also goes from neutral to negative after expiration. The question is, do we hold the air in our lungs for as long as possible after putting our face back in the water, then exhaling with a quick burst prior to capturing the next breath? Or, do we do as the Red Cross teachers told us to do as children, trickle the air out of our nose or mouth, prior to the next breath?
The changes in body weight and buoyancy can impact frontal drag of a swimmer, particularly while swimming on the surface. The higher the swimmer can be on the surface, the less frontal drag and the faster the swimmer can go. A swimmer is faster in salt water, where there is more buoyancy, than in fresh water. The density of water is so great that just a few millimeters of difference in body position on the surface can have a significant impact on a swimmer’s speed. So, it would seem logical that swimmers would want to keep the air in the lungs as long as possible, weigh less, be more buoyant and burst the air out of their lungs at the last moment, before turning the head for the breath.
But that is not what great swimmers do. Katie Ledecky, Sun Yang, Grant Hackett, Ian Thorpe, Michael Phelps and virtually all of the other great freestylers release some air through the nose immediately upon planting their faces back in the water after the breath. The great butterflyers of the world do the same. With the speed of their bodies moving forward, those air bubbles from the nose move underneath their bodies before finding their way to the surface. The rest of the exhalation comes just before and while the head is turning or elevating for the next breath. In that manner, the inhalation can begin immediately once the mouth reaches air, so the head can return promptly to the face down position without slowing the stroke rate.
I did not recognize the significance of those bubbles until one of my swimming colleagues at the pool in Islamorada, Florida brought the Emperor Penguins to my attention. The Emperor Penguins of the Antarctic Ocean have evolved to develop a unique way of swimming faster in order to escape the wrath of the hungry seals chasing them. Under the plumes of their feathers, they manage to trap air bubbles. When the seals are chasing the penguins for lunch, the penguins release the air from under the feathers and gain a significant amount of speed, presumably while kicking with the same amount of force with their webbed feet. By releasing the air bubbles, surrounding themselves with air instead of water, they effectively lower their frontal drag forces, which enables them to spurt forward out of harm’s way.
Could it be that the air bubbles under the swimmer’s body released after the breath do the same to a lesser degree? Perhaps. What I do know is that great swimmers usually do the right thing, whether they understand the reason for doing so or not. Releasing some air through the nose after the breath may just be another example of that. So that is what I do and recommend others do.
In the upcoming third and final article of this series, we will examine the most controversial breathing topic of all and that is how often to breathe.
Yours in swimming,
The Art of Breathing Part I – Swim Race
Breathing while swimming seems like a natural thing to do. After all, we do it all the time without even thinking about it and, if we stop doing it, we cannot survive for more than about 7 minutes. Yet, while swimming, breathing is not that simple. The questions ‘How often do we breathe?’ ‘Where do we breathe?’ or even ‘How do we breathe?’ are legitimate ones. The answers are not that obvious, either.
Breathing in swimming freestyle or butterfly can be problematic. It can slow the stroke rate, if one takes too long to get the breath. It can lead to an increase in frontal drag, if the breath causes an alteration in the pulling motion of the arm under water, or if the head lifts too much for the breath. Yet, in any race lasting longer than about 20 seconds, the delivery of oxygen to the muscles, in order to provide an important source of energy, is vital to our ability to sustain speed. In other words, we have to breathe to keep our pace.
The fastest way to swim fly and free is without breathing. Unfortunately, in any race event over a 50 sprint, not breathing enough leads to a catastrophic dependence on anaerobic sources of energy, which leads quickly to a lowering of the body’s pH (H+ ions). Once the body begins to become acidic, the muscles cease to recover or function at the same rate. In swimming vernacular, we ‘die’ in our races.
Perhaps the fastest way to increase the body’s pH, to restore neutrality, is by breathing. The faster the respiratory rate, the more CO2 we blow off in order to increase our body’s pH. Frequent breathing during intense exercise not only helps to maintain a neutral pH, but it also helps prevent the acidosis to begin with by delivering more oxygen to the muscles. Having a pipeline flow of oxygen delivered to the muscles engaged in the activity is essential to high performance swimming. Increasing the stroke volume of the heart, increasing the numbers of red blood cells, improving the transport systems for delivering oxygen to the muscle cells, increasing the numbers of mitochondria in the muscle cells available to convert glucose into ATP (Adenosine triphosphate, the fuel for our muscles), and increasing the number and type of muscle fibers available for contraction are all important parts of the physiological and anatomical improvements we seek from training. Yet, even if we develop those systems, none of them are optimized if we don’t have a nice flow of oxygen arriving at the alveoli of our lungs, ready to be delivered to the muscle.
After the first 20 seconds or so of our race, when we have used up the most readily available and stored sources of high-energy phosphate (Creatine phosphate), the two systems of producing ATP on an ongoing basis are the aerobic (with oxygen) and the anaerobic (without oxygen) systems. The two systems are needed and work simultaneously during intense exercise to produce the kind of power required to swim very fast. While the aerobic system produces more ATP per molecule of glucose than the anaerobic system (approximately 36 moles of ATP vs 2 moles of ATP), the anaerobic system produces ATP faster than the aerobic system. In this respect, they each may have their advantage, yet only the anaerobic system will lower our body’s pH, leading to a dysfunction of muscular contraction. The more we can utilize our aerobic system of producing ATP, the longer we can sustain our power.
If you compare the respiratory rates of swimmers racing with competing athletes from other sports, like running or cycling, where they can breathe at will, the rates of swimmers are usually slower. At maximum effort on land, the respiratory rate of an athlete is typically 50-60 breaths per minute. Rarely is a swimmer breathing that often, either in a race or in practice. One can make the argument that swimmers train hypoxically most of the time, which means that by under delivering oxygen to the lungs, swimmers are developing all of the other body’s mechanisms to deliver oxygen more efficiently to our muscles and to manage lactate production. By training at altitude, where even less oxygen gets delivered to the muscles, one can build all of those mechanisms even better and faster. That is a good thing. But when it comes to racing, other than in the 50 sprints, do we want to race hypoxically? I think not. I can still recall the pain of swimming the 400 IM at the Olympic Games of Mexico City (7,000 feet) in a time about 10 seconds slower than I would have swum at sea level. At altitude, we may not have the choice of getting as much as oxygen as we need, but at sea level, it makes less sense to deprive ourselves of getting that oxygen. That means swimmers should be breathing more, not less.
Next time, we will discuss the how and where of breathing in freestyle and fly.
Yours in swimming,
The Race Club, with locations in the amazing tropical paradise of Islamorada in the Florida Keys and in Pacific Palisades, a beautiful southern California coast escape from the energy and excitement of Los Angeles, is hiring swim coaches for all staff coaching positions ranging from 3 month internships to Senior Staff and Site Directors for experienced, professional coaches and everything in between.
The Race Club’s Primary Focus is on Swimming Technique and the Technical aspects of swimming. This non-traditional coaching position emphasizes teaching and the science of swimming where the coaching staff is expected to have or develop technical expertise and be on the cutting edge in the sport. This is a great opportunity to launch your coaching career to the next level by learning from world-renowned coaches and world-class athletes while applying proven fundamental progressions to a diverse population of swimmers.
Our Coaches must have a passion for swimming, curiosity and a likeable personality with the ability to communicate positively and effectively with others. Swimming experience and success counts, however, all experience levels of coaches will be considered. Applicants should have talents, skills, experience and/or education outside the sport that effectively demonstrate intellect and capacity to learn. Specific skills in computer science, social media, technology, graphic arts, marketing and business administration are particularly valuable.
Benefits. Every day on the pool deck as a Race Club Coach is a step into the lab to learn at the highest level in the sport, develop and practice your coaching skills, both technical and interactive. Off of the deck, you will have the ability to contribute to building the preeminent swimming organization in the world. Opportunities for significant additional income, international exposure, and growth in a dynamic leader in the sport will be available for the best members of our staff. We are also a leader in swimming social media and online delivery of services, making a coaching position with the Race Club one of the most technologically innovative opportunities for coaches in the sport.
Join the Family. If you, or someone you know, is interested in this unique opportunity of coaching/teaching positions, please contact us. International Applicants must already have authorization to work in the United States. All open positions are for Islamorada, FL location. Email your resume to firstname.lastname@example.org.
Come join us for our Summer Swim Camp in Islamorada, FL! Below are the details of each session. You can sign up for as many sessions as you’d like, but you can see why we encourage you to sign up for all 8 sessions and the enhanced sessions. Lots of Great material to cover! These sessions are for any swimmer that wants to swim faster. We have had swimmers and triathletes from age 7- 86 ranging in abilities from beginner wanting to learn a flip turn or a stroke, to Olympians. Sign up and we hope you’ll have a great time!
June 18th 10am-12noon – Science of Swimming – Reducing Frontal Drag – Freestyle technique
June 18th 2:45pm-4:45pm – Race Club mobility routine – Increasing Propulsion – Freestyle technique
June 19th 10am-12noon – Nutrition talk – Conforming to the Law of Inertia – Freestyle
June 19th 3pm-5pm – Yoga – Progression to a Fast Backstroke
June 20th 8am-10am – Strength training talk – Key Points to Improve Breaststroke
June 20th 4pm-6pm – Starts – Race Club Circuit Training
June 21st 8am-10am – Mental training talk – Developing an Easier and Faster Butterfly
June 21st 4pm-6pm – Race Practice and Strategy
June 22nd 8am-10am – Science of Swimming – Reducing Frontal Drag – Freestyle technique
June 22nd 4pm-6pm – Race Club mobility routine – Increasing Propulsion – Freestyle technique
June 23rd 8am-10am – Nutrition talk – Conforming to the Law of Inertia – Freestyle
June 23rd 4pm-6pm – Yoga – Progression to a Fast Backstroke
June 24th 8am-10am – Strength training talk – Key Points to Improve Breaststroke
June 24th 4pm-6pm – Starts – Race Club Circuit Training
June 25th 10am-12noon – Mental training talk – Developing an Easier and Faster Butterfly
June 25th 3pm-5pm – Race Practice and Strategy
*All sessions are subject to change depending on the individuals signed up in each session, weather, etc.
June 18th 12noon-1pm Breathing Technique and Breathing Patterns
June 19th 12pm-1pm Hybrid Freestyle (the third style of Freestyle or Phelps Swimming technique)
June 20th 10am-11am Back to Breast Transition Turn
June 20th 3pm-4pm Starts
June 21st 10am-11am Turns
June 22nd 10am-11am Breathing Technique and Breathing Patterns
June 22nd 3pm-4pm Hybrid Freestyle (the third style of Freestyle or Phelps Swimming technique)
June 23rd 10am-11am Open Water Technique and Training
June 23rd 3pm-4pm Dolphin Kick Technique and Drills
June 24th 10am-11am Back to Breast Transition turn
June 24th 3pm-4pm Starts
June 25th 12noon-1pm Turns
Sign up for as many camp sessions as you’d like with a minimum of 3.
- 16 camp sessions plus 8 enhanced sessions – $2550 ($650 savings if you register by May 17th, 2016)
- 16 camp sessions = $1950 ($450 savings if you register by May 17th, 2016)
- 8 camp sessions plus 4 enhanced sessions = $1300 ($300 savings if you register by May 17th, 2016)
- 8 camp sessions = $1000 ($200 savings if you register by May 17th, 2016)
- Each camp session is $150 (minimum of 3)
- Each enhanced session is $100
Come join us for our Los Angeles Swim Camp! Below are the details of each session. You can sign up for as many sessions as you’d like, but you can see why we encourage you to sign up for all 8 sessions and the enhanced sessions. Lots of Great material to cover! These sessions are for any swimmer that wants to swim faster. We have had swimmers and triathletes from age 7- 86 ranging in abilities from beginner wanting to learn a flip turn or a stroke, to Olympians. Sign up and we hope you’ll have a great time!
April 21 6:15am -8:15am – Science of Swimming – Reducing Frontal Drag – Freestyle technique
April 21 5:30pm-7:30pm – Race Club mobility routine – Increasing Propulsion – Freestyle technique
April 22 6:15am-8:15am – Nutrition – Conforming to the Law of Inertia – Freestyle
April 22 5:30pm-7:30pm – Yoga – Progression to a Fast Backstroke
April 23 9am-11am – Strength training – Key Points to Improve Breaststroke
April 23 2pm-4pm – Starts – Strength Training with Brian MacKenzie
April 24 9am-11am – Mental training – Developing an Easier and Faster Butterfly
April 24 2pm-4pm – Race Practice and Strategy
April 21 11:30am-12:30pm Breathing Technique and Breathing Patterns
April 22 11:30am-12:30pm Dolphin Kick Technique and Drills
April 23 11am-12noon Back to Breast Transition Turn
April 24 11am-12noon Starts and Turns
-All 8 camp sessions plus 4 enhanced sessions = $1300 ($300 savings if you register by March 21st, 2016)
-All 8 camp sessions = $1000 ($200 savings if you register by March 21st, 2016)
-Each camp session is $150
-Each enhanced session is $100
Location: Pacific Palisades High School, 15777 Bowdoin Street, Pacific Palisades, CA 90272
We recommend finding an apartment or house to rent in the Pacific Palisades neighborhood near the pool. Otherwise there are many hotels in Santa Monica. Email for questions. Or Register Here.
Frontal drag is the number one enemy of the swimmer. Swimming is arguably the most technique sensitive sport on the planet. With water being some 800 times denser than air, the frontal drag forces that slow swimmers down come into play at much slower speeds than all other sports on land. For that reason, in order to become fast, we must learn how to reduce frontal drag as much as possible.
There are three types of frontal drag; friction, pressure (form) drag and surface (wave) drag. Researchers have shown that all three can contribute significantly to the slowing of a swimmer. In any given medium, including water, the frontal drag forces of an object are determined by its shape, its surface texture (friction) and its speed squared. Here are ten good ways to help reduce frontal drag.
- Keep the body aligned. A curved body creates more frontal drag than a straight body. While some curve in our body is needed in order to create more propulsion, such as during the hip undulation in the dolphin kick, it is important that we bend, but not break the body. Too much curve or too much angle of one of our appendages sticking out causes an enormous increase in frontal drag. Keeping the body aligned requires having a tight core.
- Keep the head down. Keeping the head down helps keep it in alignment with the body, but more importantly, a head down also can help reduce surface or wave drag. There is actually less drag underwater than on the surface of the water (think of a submarine), because we eliminate surface drag. Frontal drag is proportional to our speed squared, so ideally, we would like to see the head submerged during the fastest point in the stroke cycle, which I call the surge point. All four strokes have a surge point where the head should be underwater, even if it is slightly so.
- Pull underwater with a high elbow. In the pulling motion of all four strokes, the upper arm is the ‘bad cop’, causing most of the frontal drag. By keeping the elbow nearer to the surface (except it backstroke) and more in alignment with our body’s motion, we can reduce, but not eliminate, the frontal drag caused by the forward motion of the upper arm during the pull.
- Wear the fastest technology racing suit possible. The records set in 2008 and 2009 convinced all of us that the suits really matter. Even today, the best suits help reduce friction and keep the body tighter to reduce frontal drag.
- Shave all the hair from your body. Although this is generally not done (or recommended) until post puberty, when significantly more hair grows on the body, shaving the entire body will reduce friction and make us slicker and faster.
- Streamline off the start and all turns. Getting into the tightest streamline possible creates a huge advantage when you are moving fast. The fastest point you will reach in a swimming race (about 15 mph) is when the fingertips touch the water off the starting block. The second fastest is when your toes leave the wall on each turn (6-8 mph). At either time, because of the exponential relationship between speed and frontal drag, you had better get into the tightest streamline possible.
- Keep your kick tight. In freestyle, backstroke and breaststroke, the kick must be tight in order to help reduce frontal drag. With the former two, that means not bending the knees too much and in breaststroke, it means keeping the knees at or inside the hips.
- Double cap. Covering up that thick head of hair and creating a new surface for your head with the reduced friction of silicone is another good way to reduce drag. Most athletes today will double cap, leaving the goggle straps between the first and second caps. The outer cap should be a thicker silicone material to maintain its smoothness.
- Wear low profile goggles. Racing goggles should be strapped on tighter to the face and are a little smaller and sleeker than larger training goggles. The less they protrude from your face, the better.
- Point your toes. One of them most common mistakes made on the start is not pointing the toes at entry. A German study recently showed that a relaxed foot creates 40% more frontal drag than a pointed toe. In general, the less splash one makes on the dive entry, the less frontal drag. The other common strokes where the relaxed foot causes more frontal drag is at the end of the breaststroke kick and the down kick in dolphin. In either case, keep the toes pointed backward to reduce drag.
If you successfully comply with all of the above, you will graduate from being a swimmer, one who slogs through the water, to become a much faster ‘swipper’, a swimmer that slips through the water. Let’s hope you become a ‘swipper’! (Click here to find out what a swipper is)
Yours in swimming,
Once we understand how important it is to obey the law of inertia in the water, how do we really know if we are? Each of the four strokes demonstrates peaks and troughs of our body’s speed during the swimming stroke cycle. In freestyle and backstroke, there is a right arm peak and trough speed and a left arm peak and trough speed. In fly there is a peak for the first down kick, which occurs while the hands are pulling underwater, and a peak for the second down kick, when the hands are recovering over the water. In between each peak is a trough. In breaststroke, there is a kick and pull peak and a trough that follows each.
At The Race Club, through the technology of the velocity meter, we measure a swimmer’s velocity, acceleration and deceleration at all times throughout several stroke cycles. It enables us to identify and quantify all of the peak and trough speeds. When synchronized with video, it also enables us to identify stroke deficiencies, such as poor kicking or pulling motions or head and body position that magnify the differences between peak and trough speeds. The velocity meter enables us to make corrections in technique that we could never identify from the deck nor from an underwater window without also understanding the impact they have on body speed.
After performing many of these studies on great and not-so-great swimmers, we have come to appreciate what the ‘desirable values’ are for the differences between peak and trough speeds in each of the four strokes. Backstroke is the most conforming stroke with a difference between peak and trough speed on each arm of .35 meters per second or less considered to be very good. In freestyle, the difference between peak and trough speeds for each arm should be .5 meters per second or less. In fly, we often see a difference range of 1 to 1.5 meters per second or more between the peak and trough speeds. In breaststroke, since we are starting from nearly a dead stop before beginning each kick and the kick provides the majority of propulsive forces, we want to see a big increase in speed, or a large difference between peak and trough after the kick. Breaststroke is analogous to doing a standing dunk under the basketball net.
Certainly in freestyle and backstroke, minimizing the difference between peak and trough speeds conforms to the law of inertia and makes us more efficient swimmers. The question is how do we do that?
In both strokes, there are really only three things we can do to conform to inertia. First, sustain a steady six-beat kick. Second, increase the stroke rate, which lessens the ‘down time’ of our pulling propulsion. Third, reduce frontal drag in all aspects possible; better head and body position, proper elbow bend and arm position and a tighter kick. For example, in a study of my freestyle pull (no kick involved), I found that in the three tenths of a second between the peak and trough velocities of each hand, the deep arm pull caused a 40% drop in body speed due to increased frontal drag versus a 25-30% drop in speed with the high elbow pull (less frontal drag). The amount of work required to overcome a 10% difference in body speed on each and every pull is overwhelming. The speed cannot be sustained for long with the deeper pulling motion.
For starts and turns, conforming to the law of inertia generally means not waiting too long to initiate the dolphin kicks off the wall or entry. Or it means keeping the kicks fast and tight and transitioning to flutter kick before the breakout….all designed to help sustain our speed.
In summary, don’t ignore Galileo’s discovery and Newton’s first law of motion. Inertia is vital to our success as swimmers. If we learn to conform to it, we might just win some races.
Yours in swimming,
The definition of inertia is the following: a body in motion wants to remain in motion, while a body at rest wants to remain at rest. It was first described by Galileo and later incorporated into the first of Newton’s three laws of motions. What does the law of inertia have to do with swimming? Lots.
Another way of looking at inertia is that it is far more efficient to keep a body moving at the same speed than it is to start it and stop it, or even slow it down, repeatedly. Because of inertia, we get better gas mileage on the freeway driving a constant speed of 70 mph than in town, averaging 35 mph, with lots of starts and stops.
As coaches, I think we often get hung up on the word ‘efficiency’. Efficiency is defined as the number of calories we burn to travel a certain distance in the water; in other words, it is our ‘gas mileage’ in the water. While that is important, efficiency per se does not win races. No one asks the winner of the Indianapolis 500 how the gas mileage was during the race. They don’t care. They just know that he or she got the checkered flag. The same goes with swimming. In order to be swimming fast and win races, we have to burn lots of calories. We simply cannot afford to waste them on unproductive motion.
In the sport of swimming, two of the four strokes conform more to the law of inertia than the other two. I call freestyle and backstroke the ‘freeway strokes’ and butterfly and breaststroke the ‘stop and go strokes’. It is partly due to inertia that the latter are either more difficult or slower than the former. Nonetheless, the law of inertia applies to all four strokes, as well as to starts and turns.
The reason that freestyle and backstroke conform more to the law of inertia than breast or fly is that there are more propulsive efforts occurring during each stroke cycle, particularly with a six-beat kick. In other words, there is less propulsive ‘down time’. The amount of propulsive ‘down time’ is important because as long as we are moving forward, frontal drag has no ‘down time’. That is, with our non-streamlined shape, frontal drag is working to slow us down at all times and quickly. Therefore, the only way we can keep a constant speed is by maintaining constant propulsion, which doesn’t happen with any stroke.
There are three ways to get on the freeway and maintain speed while swimming freestyle and backstroke; six beat kick, increased stroke rate and reducing frontal drag. At The Race Club, we focus on the importance of inertia and how each individual can try to best comply with our universe’s laws that rule us in the pool.
Yours in Swimming,