The WaterRower, unlike conventional indoor rowing machines, creates a non-impact and non-load bearing environment for cross-training and rehabilitation. The users weight is taken off the knees and ankles by the seated position of the exercise and the use of the unique WaterFlywheel creates an evenly loaded stroke eliminating the heavy jarring and loading experienced on conventional rowing machines, making the WaterRower a popular choice for physiotherapy and sports sciences practices around the world.

With magnetic rowing machines, adjusting the resistance means varying the distance between a flywheel and one or more strong magnets. This is done either manually, using mechanical sliders, or digitally by the console controls. Like hydraulic rowers, magnetic rowing machines operate quietly and have a compact design for easy storage. Unlike hydraulic rowers, they can provide a smooth and consistent workout. It's a very different kind of feel to what you'd expect from an air or water rower, though. You still get a good workout, but it doesn't simulate the sensation of rowing in quite the same way.
Water Rower Dimensions: 88" x 22" x 20" / Weight: 74 Lbs (Empty Tank), 111 Lbs (With Water); Maximum User Weight And Height: 700 & 38" InseamExercise Rower Features Aluminum Makeup With Powder-Coated Aluminum Finish For High DurabilityBoasts Patented Water Flywheel Responsible For Its Natural Rowing Dynamic-Like Actually Driving A Boat With Oars! Other Features: Self-Regulating Resistance Levels-Making It Suitable For Any User, Little Maintenance Required (Tablets Available From Manufacturer Free Of Charge) And Inclusive Of S4 Performance Monitor (Displays Intensity, Kcalories/Hour, Stroke Rate, Heart Rate, And More! Enjoy 1 Year Commercial Warranty (Upgradeable To 3-Year Parts While 5-Year Frames Are Free Of Charge With Registration) read more
The table on the left gives the speed of waves of different wave lengths in deep water. “Deep” in this context is not an absolute value, but is relative to wave length. The simple relationship starts to to breakdown when the depth of the water is less than 1/4 th the wave length. At that depth the bottom exerts sufficient drag on the wave to slow its motion and thus decrease the wavelength [equations and more about wave speed].

After reading so many fantastic reviews I purchased the Classic model. Before I write what I think are the negative aspects I'll say that it gives a great workout! That is pretty obvious and I don't think that part is arguable. The disappointment began while unpacking. The wood parts were wrapped fairly well and did not have damage but there were several scratches that I had to sand out and re-oil. It appears that they were there before shipping. Putting it together would have been fast and easy- except 2 of the bolts were bent at about 15 degrees and would not fit. I had to wrap with tape and bend with vice grips. After getting it all together the rower worked well for about a week. I started to notice an annoying kind of popping sound from the left rail as the wheels rolled over on each stroke and recovery. It seems the plastic that the wheels ride on is not flat or adhered well to the rail. It isn't very loud but I can hear it well and it gets my attention, spoiling the nice sound of the water. Really disturbing. Support at WaterRower would like a video of the issue. Seems like an obvious issue and could swap out with a rail that is good instead of me trying to make a video of this small sound while moving the seat back and forth. For a $1500 machine the quality control- or lack of it is disturbing. Having to jump through a bunch of hoops because they are too cheap to just send a part is even more so. Perhaps I am being difficult but it is upsetting to have something touted as so great but put together like a $200 piece of junk. Another complaint would be the lack of any back lighting on the monitor. Really cannot see it if the lights are low. Being able to remove the monitor to attach to a PC wouldn't hurt either. While it gives a good workout the rower really suffers from poor manufacturing.

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The overall rowing experience encompasses pulley, seat, and — of course — resistance. Air and water have very distinct qualities, making them impossible to compare but interesting to contrast. Air stores inertia, which feeds into intense, constant effort during a goal-oriented workout. Water’s more sluggish drag makes for demanding exercise, but one that’s less consistent.

Water rowers are just a recent invention followed by the air rower, which utilizes paddles and water in order to create the resistance. While there are a lot of people who prefer the air rower compared to this one, there are also people who prefer the water rower because it has a smoother, quieter feel of the action, especially when emulating the movement of water rowing. Like the air rower, this machine is able to burn calories and work up your muscles through offering resistance to your movement while sitting on the sliding seat. The more resistance there is, the more it makes it harder to work on the machine and your workout becomes more challenging.
Designed with an obsession for detail, the WaterRower Classic Rower is unmatched by any other fitness equipment. The overriding design philosophy of the WaterRower has achieved "beauty by simplicity". Every detail has been resolved to compliment the overall appearance and performance of the machine. Order your WaterRower Natural Ash Rower from today!
I used it a few more times. The strap became more frayed in different areas. While packaging it to return I noticed there is a bungy cord underneath. The cord is already showing stretch/premature wear. This was designed poorly. I've since purchased a concept2 rower. I've found that the computer on the stamina was way off on its stroke count. It appears to have been doubling the stroke count compare to my concept2.
Rowing is a cyclic (or intermittent) form of propulsion such that in the quasi-steady state the motion of the system (the system comprising the rower, the oars, and the boat), is repeated regularly. In order to maintain the steady-state propulsion of the system without either accelerating or decelerating the system, the sum of all the external forces on the system, averaged over the cycle, must be zero. Thus, the average drag (retarding) force on the system must equal the average propulsion force on the system. The drag forces consist of aerodynamic drag on the superstructure of the system (components of the boat situated above the waterline), as well as the hydrodynamic drag on the submerged portion of the system. The propulsion forces are the forward reaction of the water on the oars while in the water. Note also that the oar can be used to provide a drag force (a force acting against the forward motion) when the system is brought to rest.

The Classic Rowing Machine is designed is extremely easy to use. Additionally, it has a lot of comfort features in its design. It has an ergonomically shaped handle and padded heel rests that accommodate nearly everyone. Everything on the machine can be adjusted quickly. Because there are no movement parts, maintenance is minimal. Even the computer has a lot of one button operations, so the minute you have the rower assembled, you can get to work.

Rowing is unusual in the demands it places on competitors. The standard world championship race distance of 2,000 metres is long enough to have a large endurance element, but short enough (typically 5.5 to 7.5 minutes) to feel like a sprint. This means that rowers have some of the highest power outputs of athletes in any sport.[35] At the same time the motion involved in the sport compresses the rowers' lungs, limiting the amount of oxygen available to them. This requires rowers to tailor their breathing to the stroke, typically inhaling and exhaling twice per stroke, unlike most other sports such as cycling where competitors can breathe freely.
* While there is nothing to adjust from row to row on the WaterRower, it is possible to increase or decrease the level of resistance by changing how much water you put in the drum. The monitor is pre-calibrated to match 17 liters of water, but you can change that if you want. More than 17 liters = more resistance, up to the max fill line. This is not something you'll want to change frequently, it's more of a set-it-and-forget-it thing.
Rowing has long been recognized as the perfect aerobic pursuit, with naturally smooth and flowing movements that don't tax the joints but do boost the heart rate. Now you can take your rowing experience to the next level with the WaterRower Natural rowing machine. Using the same principles that govern the dynamics of a boat in water, the WaterRower Natural is outfitted with a "water flywheel" that consists of two paddles in an enclosed tank of water that provide smooth, quiet resistance, just like the paddles in an actual body of water. As a result, the machine has no moving parts that can wear out over time (even the recoil belt and pulleys don't require lubricating or maintaining). More significantly, the water tank and flywheel create a self-regulating resistance system that eliminates the need for a motor. As with real rowing, when you paddle faster, the increased drag provides more resistance. When you paddle slower, the resistance is less intense. The only limit to how fast you can row is your strength and your ability to overcome drag. And unlike conventional rowing machines, which tend to be jerky and jarring, the WaterRower Natural is remarkably smooth and fluid.

While rowing, the athlete sits in the boat facing toward the stern, and uses the oars which are held in place by the oarlocks to propel the boat forward (towards the bow). This may be done on a canal, river, lake, sea, or other large bodies of water. The sport requires strong core balance, physical strength, flexibility, and cardiovascular endurance.[5]
As far as “racing”, I said an air rowing machine is better because the Concept2 is the only model used for indoor rowing competitions, setting world records, and entering your actual scores online. It is because their monitor can calculate the drag factor of the flywheel in real time and accurately calculate distance and time. Small changes such as dust build up, air temperature, and humidity will not change the times between different machines because the drag factor is calculated every stroke.
Rowing machines were first used in Archaic Greece. Chabrias, an Athenian military general in 4th Century B.C., invented wooden rowing simulators for his inexperienced oarsmen. This enabled them to learn technique and timing before stepping foot on actual water crafts. And it must have worked — Chabrias successfully led numerous naval attacks against the Spartans.