Storage is also a plus point for the Waterrower series as they are all designed to stand upright with the tank acting as ballast for stability. In this position they only take up around two square feet. Again, great if you are planning on training in the living room. However, if you have small children, I would advise fixing the top to the wall with a hook and strap.
The First Degree Fitness Challenge AR (Adjustable Resistance) is designed and engineered by professional rowers and craftsman using only the highest degree of quality components – ensuring complete satisfaction in function, performance, and reliability.  With its patented Fluid Technology, First Degree Fitness has incorporated the truest emulation of sensation, sight, and sound of real on-water rowing captured in the private setting of your own home.
It's been nearly 30 years since John Duke, a former Yale University and USA National Team oarsman, set up a small shop in Rhode Island, USA to begin fine-tuning his innovative water-resistant rowing machine. With its beautiful design and unmatched feel, the WaterRower quickly gained a cult-like following of both on-water rowers and fitness enthusiasts that had found their perfect piece of workout equipment. As word spread of the new product that simulated the feel of on-water rowing, WaterRower transitioned from simply a one-off product found within the occasional boathouse to an established brand in both the rowing and fitness world.
I kayak (ocean and flat water, not river), so I was drawn to the WaterRower over a flywheel type rower (which I have used in gyms) because I wanted to hear the sound of the water, which I miss hearing against the hull of the boat during the winter when I can't get out on the lake. I also like the way the paddles engage in the water; it's a very smooth pull and release, and moving the mass of the water instead of a dialed down tension feels more natural. As someone else also commented, the seat (at least on the wood version) is incredibly smooth and solid; no wobbling at all. I generally listen to music on my Nordic Track ski machine, but with the WaterRower I am content to listen to the sound of the water; working out on this is somehow both energizing and calmingly meditative at the same time. In the event that you want to use it while watching tv (this is one use to which I wanted to put it), it is quiet enough to hear the tv without having to turn it up.
First of all, if you're considering rowing, just do it. It is by far the most enjoyable and beneficial exercise I have ever tried. I've made huge strides with both cardio and muscle fitness with the WaterRower, and it's so enjoyable I look forward to exercising each day. Yes, it is more expensive than most other rowing machines, but when you compare it to a lot of other types of exercise equipment, it's actually pretty reasonable. When you also compare the exercise benefit you get, it's a bargain.
If you are accustomed to the natural catch and feel of on-water rowing, your rowing technique will immediately appreciate the Apollo’s unrivalled emulation of a boat gliding through water. FDF’s patented twin tank design generates a smooth uniform stroke, including no lag of resistance at the catch and continued resistance all the way to the finish.
I loathe exercise. Will do almost anything to avoid it, like holding down a couch or going to wash a car. But the time came to find something that I could do that would get me into regular exercise and make the most of the time. After researching, I found that rowing was almost universally lauded as a great full body workout that does not abuse your joints, and requires only a minimal time commitment. After searching and researching , the Water Rower consistently came out at the top of the pile. So I spent the big bucks and ordered one.
The model E’s seat stands 6 inches higher. And while the model D’s monitor rests on an adjustable arm, the E’s sits on unbending metal. These few technical differences do nothing to impact ride feel. We recommend the $200-cheaper model D as the best buy, but the Concept 2 E will appeal to anyone who values a higher seat and more solid construction.
Instead of air or hydraulic resistance, the Elite Wave Water Rowing Machine emulates actual rowing with lifelike water resistance. The paddles glide through the water housed in the reservoir, making the rowing stroke smooth from start to finish, and like rowing on a body of water, the resistance increases infinitely the faster you row. Not only does this feel like rowing on water, it sounds like water. Different stroke speeds and intensities vary water motion, resulting in realistic water resonance.
The Waterrower has recently been made famous by Kevin Spacy as the rowing machine used in the ‘House of Cards’. It is a type of wooden rowing machine produced and manufactured by Waterrower Inc. in New England, USA. The rowers were designed by ex-US national team rower john Duke in the mid 1980’s and the company to manufacture them was established in 1988.
The main advantages of the water rower are that it has quiet operation; there is only little maintenance to do, the water only needs to be changed occasionally; many users love the whooshing sound of water in the tank; and its consistently smooth resistance at every stroke. Two disadvantages of this machine are it costs a lot than the air rower; and it tends to be larger in size compared to the other rowing machines.
The proper ratio of effort is about 75 percent lower body and 25 percent upper body. Ensure you’re hitting that by driving through your legs and keeping your hands relaxed. Posture plays a big part, too. Concept 2 recommends imagining your upright profile at noon and tilting from the 11 o’clock position (drive) to the 1 o’clock position (recovery).
The Challenge AR has the capability to allow the rower to control and adjust the resistance from “Feather light” to “Olympic sprint” delivering a silky smooth resistance to the user’s effort and instantaneous response to input with no “flat sport”.  With water resistance being the most accurate manner in which to simulate actual outdoor rowing, the Challenge AR provides a smooth and consistent sensation throughout the range of motion of the exercise experience.  
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.
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