Category: Benefits of water fitness

What is fitness?

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Frequently fitness is equated with a number on the bathroom scale, but fitness is much more than body mass index. Physical fitness has two components, the health-related components and the skill-related components. The health-related components are cardiorespiratory endurance, muscular strength, muscular endurance, flexibility and body composition. The skill related components are agility, balance, coordination and power.

Cardiorespiratory endurance. This is the ability of your heart to deliver oxygen to your working muscles for a sustained period of time. Your muscles need oxygen to burn the calories you use during aerobic exercise. The American College of Sports Medicine recommends that you get 150 minutes of aerobic exercise a week to keep your heart strong. Obviously, everyone wants a strong heart muscle! Cardiorespiratory endurance allows you to participate in recreational activities, play with grandchildren and do all the walking you have planned for your vacation.

Muscular strength. This is measured by determining what is the heaviest weight you can lift one time. If the heaviest weight you can lift is 10 lbs. then you will have trouble carrying a 20 lb. sack of fertilizer to the front yard, bringing in the bag of groceries the sacker put all your heavy items in, or picking up your 18 lb. grandchild without injuring yourself. The American College of Sports Medicine recommends 2-3 sessions of strength training every week. Failure to work on strength results in loss of muscle mass and increasing weakness.

Muscular endurance. This is the ability to lift a weight repeatedly or to hold that weight up for a sustained period of time. You need muscular endurance to continue using tools until your project is completed, to spread mulch in the flower beds, and to carry a child through the parking lot. To work on muscular endurance you lift lighter weights 12-20 repetitions; to work on muscular strength you lift heavier weights 2-10 repetitions. The good news is that improving strength also improves endurance and vice versa.

Flexibility. This is the ability of your arms and legs to move at the joints through a complete range of motion. Flexibility reduces the risk of injury. A decrease in flexibility makes it harder to move and perform the activities of daily living. To maintain flexibility, joints must be taken through their full range of motion on a regular basis. The American College of Sports Medicine recommends stretching 2-3 days each week. Hold each stretch 10-30 seconds, then repeat each stretch 2-4 times, accumulating 60 seconds per stretch. The best time to stretch is immediately following an exercise program.

Body composition. This refers to your percentage of fat as compared to lean tissue, that is bones, muscles and organs. You need an adequate amount of muscle to increase your stamina and boost metabolism. Too high a percentage of fat increases your risk of disease. Exercise can help improve body composition.

Skill related components of physical fitness. Agility is the ability to change body positioning in space quickly and accurately. You need agility when your cat or dog plops down in front of you and you have to suddenly maneuver to avoid tripping over him or stepping on his tail. Balance is the ability to maintain equilibrium both while standing and while moving. Poor balance leads to falls. Coordination allows you to use your vision and hearing in conjunction with your muscles to perform motor tasks. That’s why it is important to get your vision and hearing tested regularly. Power is the ability to react quickly when something happens. Improvements in agility, balance, coordination and power come with practice and repetition. In a water fitness class you are practicing these skills when you move from one exercise to another, change tempo from slower to faster, change direction of travel, perform one-footed moves and various other exercises.

Information for this article comes from AEA’s Aquatic Fitness Professional Manual (2018) and from the American College of Sports Medicine’s website https://www.ascm.org Water fitness exercises for all the components of physical fitness can be found in my books Water Fitness Progressions and Water Fitness Lesson Plans and Choreography. To purchase the books from the publisher, Human Kinetics, click on the title or look for them on Amazon.com.

See you in the pool!

Chris Alexander

benefits of exercise / Benefits of water fitness / deep water / Fitness / shallow water / water fitness

Why Exercise?

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I have been teaching water fitness for 26 years. Clearly I enjoy exercising. But I know there are a lot of people out there who do not exercise. The excuses include not being motivated, not having enough time, being too tired, exercise is not fun, being too out of shape and not liking to sweat.

Motivation. Everyone wants to look younger and live longer. The secret to longer life is not a magic pill but exercise. Scientists can predict how long someone will live by how well they perform 5 simple tasks. How many times can you stand up from a chair and sit back down in 60 seconds? How long can you balance on one leg? How long is your stride length? How is your grip strength? How good is your posture? A good reason to exercise is to make improvements in these areas to improve your longevity and make the activities of everyday life easier.

Not Enough Time. Instead of trying to find time, try to make time. Some activity is better than none. Find a time during your day when you are free of commitments and schedule some exercise during that time. It doesn’t have to be a lot of time. Start with 10 minutes and increase it by a minute a week. Soon it will become part of your routine.

The remaining excuses. Once your fitness starts to improve, you will find you have increased energy. If one type of exercise is not fun, try something active that you do enjoy. Here’s where I put in a plug for water exercise. Hanging out in the pool when we were children was so much fun that many of us find getting in the water to exercise is really enjoyable. The buoyancy of the water supports your weight so that it seems easier to exercise even if you are out of shape. And the water cools your body so that you are not aware that you are sweating.

Many of the simple tasks that predict longevity can be worked on in the pool. Squats can improve your ability to stand up from a chair and sit back down. The pool is the perfect place to work on balance because the water supports the body and reduces the fear of falling while at the same time water movement makes balancing more challenging. You can work on increasing stride length by water walking. Hand grip exercisers are best for improving grip strength, but gripping pool equipment helps some. You can also concentrate on exercising with good posture in the water to help improve posture on land.

Exercising regularly makes the activities of daily life such as climbing stairs, playing with grandchildren and carrying groceries easier. It also improves blood flow to the brain which decreases the risk of cognitive decline. We cannot stop from aging, but we can work to maintain our functional fitness well into our retirement years.

See you in the pool!

Chris Alexander

balance exercises / Benefits of water fitness / Fall Prevention / Good Posture / shallow water / water fitness

How to Fall Safely

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More than one out of every four people 65 or older falls each year. One out of five falls causes a serious injury such as broken bones or a head injury. Over 800,000 patients a year are hospitalized because of a fall injury. Each year at least 300,000 older people are hospitalized for hip fractures. These statistics from the Centers for Disease Control and Prevention are a concern for many of my water exercise class participants and for me. When I came across some articles on How to Fall Safely, I decided the information was worth passing on.

I found articles from several sources, including AARP, physical therapist blogs and wikiHow. The pictures in this Blog post come from wikiHow. The co-author of the post was Chris M. Matsko, MD.

Protect your head. Head injuries can be very serious. Make sure you prioritize protecting your head. Tuck your chin down to lower your head. If falling face first turn your head to the side. Use your arms for additional protection. Put them in front of your head if falling forwards or behind your head if falling backwards.

Turn as you fall. If you are falling either straight forward or straight backwards, try to turn your body so you land on your side. This reduces the risk of injuring your head, face, arms or back.

Keep arms and legs bent. It may be tempting to try and catch yourself with your arms. However, landing with your arms straight out can break your wrists and/or your arms.

Stay loose. Tensing up increases the chance of sustaining an injury. The tense parts of the body are more likely to break. Try breathing out as you fall to help keep your body relaxed.

Spread out the force of the fall. A big part of falling safely is to spread out the force of the impact over a large area of your body. This reduces the risk of a serious injury to a single part of the body.

Another suggestion is to roll out of the fall. This is difficult to do unless you have practiced beforehand. If you wish to learn the technique, you can ask a physical therapist to show you how, or practice falling and rolling in a gym with padded and cushioned floors.

Just as important as knowing how to fall is taking steps to prevent falls in the first place. Wear shoes with slip resistant soles. Pay attention when you walk. Be aware of uneven areas on the ground, curbs and stairs. Hold the hand rail when taking stairs. In the home, close drawers after you are done with them. Don’t leave cords in walkways. Keep the area well lit. Use non-slip bath mats. Remove small throw rugs.

Another way to reduce your risk of falling is to improve your strength and balance with exercise. The pool is the perfect place to work on both strength and balance. Because the water’s buoyancy and resistance helps support the body, exercises can be done without fear of falling. Options include the following:

Gait training. Gait training is walking practice. The goal is to lengthen the stride and improve confidence while walking.


Core Strength Training. Core strength training is training for the postural muscles of the trunk. This includes the Trapezius and Rhomboids, the Latissimus dorsi and the Erector spinae. Exercises to try are rowing, bowstring pull, and lat pull-down using the water’s resistance or drag equipment. Walking backward strengthens the Erector spinae.

Deep-Water Exercise. Deep-water exercise is performed, while wearing a flotation device, in water in which a person can remain vertical without the feet touching the floor. Exercisers must aggressively engage the stabilizing muscles of the core to remain upright.

Balance Challenges. Balance challenges are exercises performed with a narrow base of support, such as the feet together, one foot in front of the other, or standing on one foot. Slow movements are more challenging than fast ones.

Falling is scary, but learning how to fall and taking steps to prevent falls in the first place are things we can all do now to reduce the risk.

See you in the pool!

Chris Alexander

balance exercises / Benefits of water fitness / deep water / Fall Prevention / shallow water / water fitness

Have Fun in the Pool

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pool-fun

Why it so much fun to exercise in water? It’s because getting into the pool means leaving the world of gravity and entering the world of buoyancy! Buoyancy is the upward force that water exerts on submerged objects. It makes you feel lighter. It takes the weight off your joints. It allows you to jump higher and land softly. It supports you and reduces any fear you might have of falling. It reminds you of the fun you had playing in the pool as a child.

Buoyancy is one of the properties of water that can be harnessed to increase the intensity of your exercise. Any movement toward the pool floor has to work against buoyancy. So instead of focusing on arm lifts, press those arms down, either from the front in a double-arm press-down or from the side in a lat pull-down. In a front kick, focus on pressing the leg down. When kicking side to side, focus on pulling the legs down toward center.

Buoyancy is not the only property of water that makes working in water different from working on land. Water offers more resistance than air and it slows movement quickly. This resistance is called drag resistance. If you increase the surface area you increase the drag resistance. You can increase the surface area by traveling forward with the arms stretched to the side or by traveling forward with the legs farther apart. Increase frontal resistance while traveling sideways by performing exercises that move front to back, such as cross-country ski.

When you push against the water, the water pushes back. If you push harder, the water pushes back harder. This hard pushing is called acceleration. If you push hard enough to double the speed of your movement, you have quadrupled the force. You can therefore control the intensity of your exercise by the amount of force you use with your limbs. It is important to maintain your range of motion with acceleration, since small moves are not as effective for increasing intensity.

When you move a limb in one direction, it will propel the body in the opposite direction. For example, if you sweep your arms to the right, the reaction is that the body moves toward the left. This is called action and reaction. Swimmers use this property of water with their swim strokes. In vertical water exercise we can take advantage of this property to increase intensity by using impeding arm or leg movements. Sweep your arms to the right and move right. Use an arm or leg movement that propels the body forward, but travel backward. Or use an arm or leg movement that propels the body backward, but travel forward.

It is important to understand the properties of water because they make aquatic exercise very different from working on land. They are tools that can be used to increase intensity. And they add to the fun of working out in the water!

See you in the pool!

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Chris Alexander

Benefits of water fitness / water fitness

The Benefits of Water Exercise for Your Heart

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heart rate Water exercise has many benefits, some of which were highlighted in my last Blog post. In this post I would like to focus on the benefits for your heart.

Your heart is a muscle, the most important muscle in your body. It beats 24 hours a day, 7 days a weak. Inactivity will cripple your heart! A normal resting heart rate ranges from 60-80 beats per minute. If you want to make your heart stronger, then you need to make it beat faster, which means you need to do aerobic exercise. Aerobic exercise brings the resting heart rate down. If you can lower your resting heart rate by as little as 10 beats per minute, you will be saving your heart approximately 14,400 beats in a 24-hour period.

Any aerobic exercise done on land or in the water can lower the resting heart rate. But exercising in the water has additional benefits for the heart. Just getting in the pool lowers blood pressure for most people. Blood pressure decreases because immersion relaxes the blood vessels so that they can carry more blood while presenting less resistance to the heart, which is pumping that blood. Decreased blood pressure lingers for a while after you get out of the pool. With regular aquatic exercise, the vessels themselves become more pliant and supple.

This occurs not only with healthy individuals. People with metabolic syndrome, who have a combination of cardiovascular disease risk factors, such as obesity, high blood pressure, high blood sugar, high cholesterol and high triglycerides, also tend to have stiffer blood vessels. The blood vessels become less effective in contracting and relaxing over time. In a study of 12 individuals with metabolic syndrome who participated in a deep-water exercise training program one hour a day, 3 days a week, blood vessel health improved in just 8 weeks. Obese individuals will often be more comfortable exercising in water because the buoyancy of the water supports their weight, and therefore they are more likely to continue with the program.

Blood pressure increases gradually and progressively with increasing age, resulting in a high prevalence of hypertension among older adults. Hypertension affects 3 out of 4 Americans over the age of 65. Hypertension can lead to heart attack, stroke, and other cardiovascular diseases. It is well known that land-based aerobic exercise can reduce blood pressure in patients with hypertension. A recent study confirmed that swimming at a mild to moderate intensity 3 times a week produced a clinically meaningful reduction in blood pressure in 2-3 months. This is because repeated workouts in the pool reduces stiffening of the blood vessels which is a primary factor that causes blood pressure to increase with age.

The hydrostatic pressure of the water pushes blood out to the extremities, and in combination with more supple blood vessels, stroke volume and cardiac output increases. This means that the heart becomes more efficient, pumping more blood with each stroke. Blood flow to the muscles during water exercise can increase an amazing 250%. Blood flow to the brain also increases, delivering more oxygen and nutrients to the brain cells. With this kind of blood flow, heart rate is lowered. Target heart rates while exercising in shallow water average about 7 beats per minute lower than the same intensity exercise on land. Target heart rates in deep water, where more of the body experiences the hydrostatic pressure of the water, average about 17 beats per minute lower than the same intensity exercise on land. The exact number of beats per minute depends on many factors, including the fitness level of the individual.

If you have chest pains while working out in the pool you need to stay in the water because the heart rate will go up when you exit the pool. Instead, alert the lifeguard so that he or she can assist you and initiate the emergency action plan if necessary.

Working out in the water has many benefits. The benefits for the heart include making the heart stronger, decreasing the resting heart rate, making blood vessels more supple, reducing blood pressure, and increasing stroke volume. If you would like to see summaries of the research on the benefits of water exercise on the heart or on any of the other benefits of immersion and water exercise, go to www.playcore.com/WaterImmersionWorks.html

See you in the pool!

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Chris Alexander

Benefits of water fitness / water fitness