The Benefits of Exercising in Shallow Water

Water fitness classes are offered all over the world. There is a multitude of different kinds of classes that instructors can choose from, and many of these are in shallow water. These include water walking, shallow-water aerobics, high intensity interval training, aqua step aerobics, aqua kickboxing, Aquapole Fitness (which includes a boxing bag), AQUA Drums Vibes, underwater treadmill, underwater bicycle, circuit classes, strength training, Senior Fitness (the Seniors I know get unhappy if you don’t work them hard enough), Aqua Barre, Aqua Pilates, Aqua Yoga, Arthritis Foundation programs, and Ai Chi. What are the benefits of putting all these formats in the pool?

Just getting in the pool lowers blood pressure for most people. The hydrostatic pressure of the water pushes blood out to the extremities, increasing stroke volume and cardiac output, while at the same time lowering the heart rate. Immersion offloads the joints, making movement more comfortable. When joints are submerged in water, they have a greater range of motion. Water also offers resistance, requiring the exerciser to apply more force to their movements. The resistance is in all directions, which promotes muscle balance. Since the water is a dynamic resistant force, the more force that is applied, the more resistance the water offers. Pool temperatures are typically 12-18 degrees cooler than body temperature, and water conducts heat away from the body, so exercisers remain cool and comfortable during exertion. Buoyancy creates a feeling of weightlessness, which is perceived as fun by most exercisers. All of these benefits apply no matter what exercise format you are using.

There is a misconception that exercise in water does not burn as many calories as exercise on land. Of course, the number of calories burned depends on many things including how hard the exerciser works, but given the same amount of effort, an exerciser will burn a comparable number of calories in water as on land, and sometimes even more. Dennis Dolny, Ph.D. reports his research on burning calories through water exercise in the Water Immersion Works guidebook, which can be downloaded on the PlayCore website. The Mayo Clinic also lists an estimated number of calories burned for various activities, and water aerobics compares favorably to other forms of exercise.

Water exercise is usually discounted as an acceptable form of exercise for people with osteoporosis because buoyancy reduces the impact compared to land based exercise. But research on water exercise and osteoporosis is ongoing and has found that shallow water exercise can slow the rate of bone loss and improve bone mineral density. Recommended exercises include jumping/rebounding, strength training and using power or force against the water’s resistance. In addition, the research has noted outcomes of improved strength, flexibility, balance and adherence. The best exercise is the one you can stick with! For more information, see Lori Sherlock’s article in AEA’s first quarter 2024 issue of Leader Tools.

Shallow water is the perfect place to work on balance. People who have fallen are often afraid of falling again and they limit balancing activities on land to minimize the risk of falling, further decreasing functionality. But in the pool, the hydrostatic pressure and buoyancy of the water is supportive, reducing the fear of falling. At the same time, water constantly moves, destabilizing movement and requiring multiple adjustments to maintain balance. Good exercises for improving balance are weight shifting, gait training, postural strength training, use of various foot positions, and one-legged movements. If there are muscle imbalances, these can also be addressed in the pool. For more information, check out the Water Exercise Coach blog post and video.

Finally, every type of equipment made for water fitness can be used in shallow water. That includes buoyant equipment such as noodles and foam dumbbells; drag equipment such as webbed gloves, Aqualogix bells, paddles and Aqua Ohm; resistance tubing; steps; drum sticks and more. There are options to please everyone. Shallow water exercise is definitely not just for little old ladies in shower caps!

Author/Instructor Photo
Chris Alexander

See you in the pool!

High Intensity Interval Training

High intensity interval training (HIIT) is working at 80-90% of your maximum effort for short periods followed by periods of active recovery in which you work at a lower intensity. Achieving maximum effort requires focus. Your focus determines the number of muscle fibers that need to contract and the speed of those contractions. It’s important, then, that you are actively engaged, not reminiscing about vacation or stressing about your workday, when you are performing HIIT. The American College of Sports Medicine recommends at least 30 minutes of moderate intensity exercise five days a week, or 20 minutes of high intensity exercise three days a week. That means that if you work at a high intensity, you meet your exercise goal in less time. For that reason, HIIT is popular in all types of exercise, both on land and in the water. Whether you are taking a water fitness class or working in your backyard pool, you may be wondering how to achieve high intensity in the water.

Step One: Start with the Base Moves. In shallow water the base moves are walk, jog, kick, rocking horse, cross-country ski, and jumping jacks. Walking is good for warming up and cooling down. Jog, kick, rocking horse, cross-country ski and jumping jacks all have multiple variations. (1) Jog. You can jog with the feet hip distance apart or wide. You can cross the midline in front with an inner thigh lift or cross the midline in back with hopscotch. You can lift the knees in front or the heels in back. (2) Kick. You can kick forward, kick across the midline, kick side to side, or kick backward. (3) Rocking horse. Rocking horse can be done front to back or side to side. (4) Cross-country ski, jumping jacks and all the base moves can be varied by using different arm movements or different foot positions.

Step Two: Increase the Range of Motion. Large moves take more effort than smaller moves. Increasing the range of motion is one intensity variable. Get the knees high in your jog and pump the arms in big movements. Start your inner thigh lift with the feet wide apart and lift the inner thigh high. Start your hopscotch with the feet wide too. Kick higher – front, side or back. Lift your knees high in front and your heels high in back with your rocking horse. Perform cross-country ski with your full range of motion. Take your feet as wide as possible in your jumping jacks and cross the legs in the center. Focus on achieving your full range of motion. Depending your level of fitness, you may find large moves to be really intense. Alternate base moves with exercises using full range of motion for your intervals until that becomes easier.

Step Three: Add Speed. Faster moves increase intensity. The tendency, however, is to decrease the range of motion as speed is increased. You work much harder if you maintain the same full range of motion while speeding up. Pay attention to your exercises to avoid slowing down. Speed is a second intensity variable. Alternate base moves with faster exercises for your intervals until that becomes easier.

Step Four: Add Acceleration. There are two ways to do this. (1) Accelerate off the pool floor, or jump. Take your jog to a leap and your wide jog to a frog jump. Perform your inner thigh lift and hopscotch with a rebound. Rebound with your kicks as well. Jump and tuck your feet under you with cross-country ski. With jumping jacks, jump and touch your heels together before landing with your feet wide. (2) Accelerate against the water’s resistance, or add more force to the move. Take your jog to a steep climb by stretching out your arms and pressing alternating hands down while at the same time lifting the knees high and then pressing the heels down toward the pool floor, as if climbing a steep mountain with trekking poles. Lift your inner thigh with power as your press the opposite hand down forcefully toward the thigh. Perform a high kick powering the leg on the downward phase, or power both upward and downward. Kick side to side with arms and legs opposite, adding power to the move. Instead of rebounding as you kick side to side, you can stay grounded, and you might be surprised at how hard it is. Karate front kicks and side kicks also involve using force against the water. Kicks backward, cross-country ski and jumping jacks can all be performed with power. Try the cross-country ski low in the water so that more of your body has to push against the water’s resistance. Be mindful about what you are doing because the harder you push against the water, the harder the water pushes back. Acceleration is a third intensity variable. Alternate base moves with accelerated moves for your intervals until that becomes easier.

Step Five: Combine Intensity Variables or Work in More than One Plane. One strategy for continuing to perform HIIT once you have achieved your fitness goals is to combine intensity variables. Go for full range of motion, speed and jumping, or full range of motion, speed and power all at the same time. You can also continue to accelerate while traveling, either by rebounding and jumping or by continuing to use force as you move across the pool. Another strategy is to work in two or three planes at once. You can do this by alternating one move in the frontal plane, such as a frog jump with another move in the sagittal plane, such as a tuck ski. A second way to work in two planes is to combine arm moves in one plane with leg moves in another plane. Examples include kick side to side (frontal plane) with arms sweeping side to side (transverse plane); cross-country ski (sagittal plane) with palms together sweeping side to side (transverse plane); and high kick (sagittal plane) clapping over the kick (transverse plane) then under the kick (frontal plane). Continue to focus on what you are doing, and your periods of high intensity will leave you breathing hard. You will need those periods of active recovery to catch your breath. For more information on interval training in the pool, see my book Water Fitness Progressions.

High intensity interval training is also done on land, and it’s always a good idea to cross train if possible, doing some of your workouts in the pool and some on land. For those who are not comfortable training in a gym, you can still do HIIT at home. If you enjoy walking in your neighborhood, try picking up the pace to a fast walk for short periods, again being mindful of what you are doing, followed by periods of walking at your normal speed for active recovery. As you continue to practice, you will find that the pace of your fast walking increases. If you prefer to run, try HIIT running. There is some great information on HIIT running at home on Garage Gym Reviews at https://www.garagegymreviews.com/hiit-running-workouts

See you in the pool!

Author/Instructor Photo
Chris Alexander

What Should a Water Fitness Instructor Know?

If you ask most people what a water fitness instructor should know, they would probably say pool exercises. While that is true, there is so much more to teaching a water fitness class than just knowing a variety of exercises. I teach a class for beginning water fitness instructors. While the class does not give participants a national certification, it does provide them with the basics to get them started and will help them prepare for getting certified later on. My next Beginning Water Fitness Instructor class will be October 9 and 16, 2021 from 10:00 AM – 2:30 PM at the McKinney Senior Pool in McKinney, Texas. Participants need to attend both Saturdays. Here is a sample of what I want them to learn:

Best Abdominal Muscle Illustrations, Royalty-Free Vector ...

It’s important to know the names of the muscles and what they do. What muscles are you using when you clap hands, push forward, do a side bend, kick backward, or do jumping jacks? You need to be aware of what muscles you are using when you plan your classes so that you don’t end up working the pectoralis major, triceps and quadriceps while leaving out the trapezius, gluteus maximus and hamstrings for an unbalanced workout. You need to know movement terms like flexion, extension, abduction and adduction, because different instructors use different names for the same exercises, but if you know the scientific name for the exercise you will know exactly what the exercise is.

Water fitness classes take place in water which is much different from classes on land. The properties of water offer many benefits. Buoyancy offloads the joints. Resistance promotes muscle balance. Hydrostatic pressure increases the stroke volume and cardiac output of the heart. If you understand Newton’s Laws of Motion, you can use them to your advantage. Make use of Newton’s First Law: Inertia by changing the direction of travel. Make use of Newton’s Law of Acceleration by using more force when pushing against the water. Make use of Newton’s Third Law: Action and Reaction by using impeding arms or legs. You need to know how to increase intensity to make the exercises harder. For example, you can increase the range of motion, increase the speed, add power or travel. You also need to know how to decrease intensity. You can slow the moves down, substitute a different move with shorter levers, or slice with the hands instead of cupping them.

Water fitness equipment is very popular, and it is important to know how to use the equipment that is available to you. Buoyant equipment, such as noodles and foam dumbbells float. That means they offer resistance only when pushing them down toward the pool floor. Drag equipment, such as paddles, provide resistance in any direction.

Then of course you do have to know a variety of exercises. It might surprise you to know that there are only seven basic shallow water exercises: walk, jog, kick, rocking horse, cross-country ski, and jumping jacks. All the other exercises are variations of these six. For example, you can take the basic exercise and change the arm movements; change the foot positions; work the move forward, sideways or backward; cross the midline; change the working position; or change the tempo. You can organize the exercises in many ways. Organizing the exercises into a lesson plan is writing choreography. There are a number of choreography styles that can help you do this. There is linear choreography, pyramid choreography, add-on choreography, the layer technique, and block choreography. Of course you want to put your choreography to music. Copyright laws prevent you from making playlists from your favorite musicians. Instead, buy your music from businesses that produce music specifically for fitness classes. For more information on teaching water fitness classes, see my books Water Fitness Progressions and Water Fitness Lesson Plans and Choreography..

If you would like to take the course you can register at https://webtrac.mckinneytexas.org/wbwsc/webtrac.wsc/wb1000.html?wbp=1 You will have to create an account with the McKinney Parks and Recreation Department. For assistance in creating an account, call the McKinney Senior Pool at 972-547-7947. Search for the class by using the Activity Number 303191. From there, add the class to your cart (the small cart icon on the left) and complete payment. In-person registration is available at the Senior Pool at 1400 College St. in McKinney. For more information on the class, see page 14 of the Fall Activity Guide https://www.mckinneytexas.org/DocumentCenter/View/27936/Activity-Guide-PR-Fall-2021

See you in the pool!

Author/Instructor Photo
Chris Alexander

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Squats

An important exercise to add to your fitness routine is the squat. A squat is a functional movement because you use it whenever you sit in a chair, get into the car, use the toilet, or pick up a basket of laundry. Practicing the squat will enable you to continue to perform these activities of daily living much longer. Squatting uses your hips, knees, ankles, glutes, quads and core. Strengthening these muscles in your lower body will also make you more stable and help prevent falls.

Sit down and stand up

So how to get started? Begin by sitting in a chair and standing up. If this is difficult, then hold on to a table or counter while performing the move. Progress to sitting down and standing up without holding on. When you are comfortable with this, see how many times you can sit down and stand up in 30 seconds. The goal is 12 repetitions.

Incorrect Squat
Correct Squat

The next progression is to squat without a chair. How deeply you squat is not important, but make sure your knees are not projecting forward over your toes, as in the first picture. Instead, bend forward from your hips while keeping your knees aligned over the toes, and your weight on your heels, as in the second picture. You will feel it mostly in your quads and glutes. There are several ways to vary the squat. Try squatting with the feet close together or wide apart. You can also try the squat with one foot in front of the other. A lunge is essentially a one-legged squat, with the weight on the front leg and the back leg assisting with balance. Another progression is to hold weights while squatting. If you have a bar you can hold onto, you can take your squats deeper. To see a video with additional information about squats, check out the Being Balanced website at https://www.beingbalancedmethod.com/fitness-videos

Feet Close Together
Feet Wide Apart
One Foot in Front
Lunge

Squat on Step
Squat One Foot on Step
Lunge on Step

Take Your Squats to the Pool. When you squat on land, gravity assists as you lower your body, and the quads and glutes do the work as you rise. The dynamic is different in the water. There buoyancy assists you to rise, and the hamstrings do the work to lower your body toward the floor. This is not necessarily a bad thing. You can increase the work for the hamstrings by holding buoyant equipment, such as foam dumbbells, down by your sides as you squat. One way to work the glutes and quads in the pool is to do squats and lunges on an aquatic step. In this way, more of your body is out of the water and therefore gravity comes more into play. Another way to work the glutes and quads is to perform rebounding moves in which you push off from the floor with both feet. Examples are cross-country ski, jumping jacks and various kinds of jumps, as in the pictures below.

Tuck Jump
Split Jump
Skateboard Jump

Squats and jumps are not options in deep water, but there are other exercises that can be used to work the glutes and quads. One option is to focus on pressing the heels toward the pool floor during a knee-high jog. You can perform a seated leg press, an action similar to using a leg press machine, or rock climb, leaning forward and moving the arms and legs as if climbing a rock wall. Glutes can be worked individually with a cross-country ski or skate kick; and quads can be worked individually with a seated kick. All the underwater photos are from my book Water Fitness Lesson Plans and Choreography.

Seated Leg Press
Rock Climb
Cross-Country Ski

Recommendation: To be able to continue to do important activities of daily living such as sitting in a chair and standing up, driving your car and using the toilet, be sure to include squats in your fitness routine or work your glutes and quads in the pool or do both!

Author/Instructor Photo

Chris Alexander

Yoga in the Pool

There are many physical and mental health benefits that you can enjoy from doing yoga. Physically, you can increase flexibility, tone your body and strengthen targeted muscle groups. Mentally, you can find peace of mind, decrease stress and anxiety, and use yoga to find your inner balance. It is not always easy to correctly perform yoga poses, especially if you have flexibility issues or injuries. This is problematic because yoga is most effective when you are able to hold the poses in the correct position. If you find performing yoga to be difficult for physical reasons, consider using water as your next yoga “weapon”!

How Does Water Help with Yoga?

Water helps the body stay upright and balanced, so if you have any joint problems, you can do standing poses more easily. What’s more, water naturally helps soothe the joints, reducing the pain you might feel while doing these poses. The water needs to be about chest height so that you will be able to enjoy the cushioning and buoyant effects all around your body.

3 Yoga Poses to Do in Water

  1. Padangusthasana

This is known as the Big Toe pose. Stand at the side of the pool and extend one arm to hold onto the edge of the pool. Bend your outer leg and bring your knee up to your chest. Grab your big toe and straighten the leg to the side as much as possible without losing the straightness of your body. As you move your leg, make sure to keep your hips and shoulders forward. When your leg reaches the side of your body, hold this pose for 10 seconds before letting go and placing your foot back on the ground. Repeat with the other side.

2. Arda Chandrasana

This is know as the Half Moon pose. Again, stand at the side of the pool facing the edge. Extend your right arm to the edge (rather than to the floor as in the photo) and place your left arm on your hip. Slowly bend forward at the hips while raising your left leg behind you, keeping both legs straight. Flex your foot as your leg raises up. When your left leg becomes parallel to the ground, move your hips to the left and raise your left arm straight upwards. Hold this pose 10 seconds and release. Repeat with the other side.

3. Vrksasana

This is known as the Standing Tree pose. While the tree pose might look simple, it can be difficult to do if you have issues with balance. Stand upright and plant both feet firmly on the ground. Raise one leg to the side and bend it at the knee, placing your sole on the inside thigh of your other leg. Place your hands above your head in a prayer position. Hold this pose for 15 seconds and release. Repeat on the other side.

Performing yoga poses in water is a great way to learn new poses or perfect ones that you have trouble doing. The more you perform yoga in water, the more it will strengthen your body and condition your muscles. Over time you’ll be prepared to perform these poses on land.

Want to know more about yoga, health and wellness? Our friends from Lotus Kitty would be happy to help. Go to www.lotuskitty.com for more tips.

Thanks to Lotus Kitty for this guest blog post!

Author/Instructor Photo

Chris Alexander