AP Belt has Changed my Game

VJH

New User
Picture a red Ferrari…a machine built to move. It can accelerate at the drop of a hat and corner on a dime. Dragsters may beat it in the quarter mile, but not many cars would out perform it in a slalom course. Why is this the case? The Ferrari has a very low center of gravity,a wide wheel base and a tight suspension (along with a ton of horsepower). Now think of the great movers in tennis: Hewitt, Sharapova, Kuznetzova, Moya, etc.... What these players have in common with the Ferrari is that same wide wheel base (stance) and low center of gravity. They all have tremendous first steps to the ball and rarely find themselves executing a shot in an “off-balance” position.

This was a lesson that I’ve recently learned the hard way while training with the Athletic Performance belt last week at Bollettieri’s Tennis Academy. Interestingly enough, I’ve learned that the belt is not a Bollettieri product (although a prototype does appear in the Killer Forehand video), nor is it an IMG offering. The belt is the brainchild of one of the folks working at the tennis academy. Pat Dougherty (you may have seen some of his instructional pieces in recent Tennis Magazine articles) has patented his design. These belts are individually made and custom fit based on the user’s specific measurements.

The Academy was hopping this week as most of the top players were preparing for a large international tournament being held at the club right after Thanksgiving (The Eddie Herr Tournament). These belts were everywhere. Whether practicing footwork drills, volleys, or ground strokes, there was a player training with the belt everywhere I looked.

I was fortunate enough to notice this device as I was checking in. As I was enrolled in the adult program, I was able to purchase a belt ($150) and have it sized by the afternoon session of my first day. This gave me 4.5 days with which to train with the belt. Having always considered myself pretty athletic/fit, I was overwhelmed by the workout the belt provided. Talk about intense. I used to think nothing of trading ground strokes for an hour at a time. I found it hard to wear the belt for more than 10 minutes before needing a breather. I’m sure you all remember the “downhill skier” exercise. (You place your back against a wall and lower yourself until your legs are at a 90 degree angle). The intensity of the AP belt workout reminded me of this exercise, only more difficult.

My belt was sized so that if I moved out of my athletic stance (a foot lower than my height of 6’2), I would feel resistance from the cord. I never realized how much time I spent standing straight up on the tennis court as my first session with the device was met with almost constant resistance. The workout was amazing. I spent the first afternoon and the whole second day fighting the belt, (meaning always feeling some level of tension). By the third day, I’d already made significant progress. I felt much less resistance (so much less that I re-checked the sizing to make sure nothing had changed….It hadn’t). I found myself moving to the ball with cleanly executed drop steps. My groundies had much more pop as I was hitting them with a wide base and low center of gravity. I framed fewer balls and was able to drive the ball better as a result of this “new” position. I quickly came to realize that I don’t think I’d ever hit more than 3 balls in a row “correctly” before using the belt. Usually by the 4th shot in a rally, I would find my straightening up as I tried to put a little extra effort into my swing. Not so while wearing the belt.

Where I really noticed a difference was transitioning from the backcourt to the net. My approaches had more bite, I probably closed the net a full step faster and was in an excellent body position to execute the volley with the belt on. You’re supposed to stay low when hitting the volley. I now realize the importance of doing so. Volley’s had more stick as I was better able to track the ball to my racket (again, a result of my lower center of gravity).

When it came time to work on serves and overheads, I welcomed the break from the belt workout. After I put the belt back on, I made sure to hit all of my favorite shots. I hit running forehands, the “Rios” one legged two-handed backhand (Safin hits this one too). I never felt impaired or restricted. The only time I felt the tension was when I was off balance or standing straight-legged (out of my athletic stance). I’m guessing the reason for this is that as one you lift one leg, the pulley system allows the cord to slacken.

Just for the record, I am a 6’2, 195 pound all court player. I am rated a 5.0 and have been playing tennis for about 10-11 years. I played baseball in college in New England. I’m positive that I would have reached the 5.0 level much sooner had I been training with the belt over the last few years. When I purchased the belt, I was a little concerned about spending the $150. I don’t have a money tree in my backyard. By the end of the week, I’d realized that I’d just made one of the better investments in my game. $150 could by you that 3rd or 4th racket, or a couple of lessons with my Pro back home. An extra racket wouldn’t have made such an impact in my game. In 30 minutes, the belt gave me a better workout than any hour (or hour +) that I’ve ever spent with a teaching pro.

I am pretty serious about my game (just ask my wife the tennis widow). I would highly recommend checking this belt out. I know that they have a website at www.APbelt.com where you can order online or read more about it.
 
Nice review. I am sure we could all improve with better and lower court posture. I am sure the belt helps ones to get one in the habit of keeping a low posture for quicker movement and more consistent stance while hitting strokes.
 
VJH,

Thanks for the great info.

What did you think of IMG? When I have the money, I'd like to go there or Saddlebrook.
 
This is a very good write-up. My second day with the AP belt was excellent. I am really starting to see the benefit of this product. My legs were a bit tired today so the workout was that much more physical. Since I dont play that much anymore, I noticed my center fo gravity tends to be higher then I would like. The AP belt provides excellent feedback regarding this and foces me to load and condition my thighs.

I also notice that I am widening my base and foundation. Very good product. I will write another post as well soon on my findings.
 
This is a very good write-up. My second day with the AP belt was excellent. I am really starting to see the benefit of this product. My legs were a bit tired today so the workout was that much more physical. Since I dont play that much anymore, I noticed my center of gravity has raised a bit higher over the years then I would like. The AP belt provides excellent feedback regarding this and foces me to stay lower and load and condition my thighs for improved performance.

Using the AP Belt, I noticed that I am widening my base and foundation. Very good product. I will write another post as well soon on my findings.
 
Hey Vin,

Just to put things into perspective, I should let you know that I am 35. I've been to both Saddlebrook and Bollettieri's several times. Typically, myself and 2 other friends would go down for a long weekend to either place (Thursday night - Monday). I also used to have a significant amount of buisness in the Tampa area. At the end of work on Friday, I would stay the weekend or through Monday (Solo, I live in Boston). That being said, allow me to give you some feedback on both.

SADDLEBROOK:

About 5+ hours of instruction/day. At the end of each day, they would open up all of their courts (Hard, Green Clay, Red Clay, Grass) to campers to enjoy. You don't really have much steam left though. There are a couple of nice things about Saddlebrook. At the end of the day, they will typically bring a cooler full of beers onto the court. Nothing tastes better than a cold one after 5 hours of physical exertion. They may have something goofy like a serving contest or a mixed doubles round robin. I usually opted for the cold beer. They try their best to put you on a court with players your own level, but if no one your level is there....you are out of luck. You will be on a court with lesser players. There are 4 students per court....Never more. Drills feature fed balls and live hitting. If you do go to Saddlebrook, you want to get on "Radar Randy's" court. He is a quirky Vietnam vet and a pretty good guy. The other nice part about Saddlebrook is the pool area....complete with pool bar.....and a few whirlpools. The spa there is pretty solid too. You will likely want at least 1 massage while you are there. The other thing you might do is ask to hit with some of the juniors......I've been in the junior program a few times as well. These kids are typically 5.0+ (the 16-18 year old kids anyway). Some pros practice there, but they generally do so on the other side of the facility during the adult afternoon program. So you don't see them often. My only claim to fame there is my buddies and I once had dinner with J'Caps dad. Watch out for Pauly Walnuts....He is the general manager of one of the 3 restaurants on campus.....He has a short fuse....

IMG

Same amount of daily court time (5+ hours). Somewhat more spartan facilities (less lively pool), but the rooms have been recently redone and are excellent. The caliber of pro in the adult program is comparable. No beers at the end of the day either....Not a big deal, but you will find yourself buying your own at the local packy right around the corner. There are 2 big differences in my opinion between the 2 places. If you want to see the top juniors in the world, go to IMG. If you want to see the top pros, go to IMG. I've seen Monica, Sharapova, Tommy Hass, Venus and Serena, just to name a few. I had breakfast once with Anke Huber....(She thought I was someone else). I've even seen non-tennis athletes train there such as Nomar and R. Alomar (while he was dating Mary Pierce).

At the end of the day though, you get decent instruction, and hit a ton of balls at both places. There is always a game adjustment period when you get back home because the feeds are just that.....Feeds.....I've never felt that either offical "program" has improved my game dramatically. I look at it as a get away with my buddies or a 5 hour work out when I go. The pro's at both spots just don't get to learn enough about your game and style of play to really make a material impact in such a shor time (1 week or less). Both places are fun though.

If money is an issue and you are serious about improving your game, I would recommend the AP Belt. I got more out of my work with that belt than all of my trips to the camps (maybe a dozen) combined. Besides....I never seemed to spend less that $900-$1,000 for a camp trip (airfare, lodging, tennis, etc...). The belt at $150 will give you a similar workout (in a much reduced amount of time) and have a much longer lasting improvement impact on your game.

Hope this helps.
 
how does this AP belt work?

Anyways, can someone tell me what is the ideal position that Nick B suggests?

How wide should the base be? How low a perons should stay during the point? Does he suggest a person should stay low throughout the entire point, or just during the stroke production ?
 
jun said:
how does this AP belt work?

Anyways, can someone tell me what is the ideal position that Nick B suggests?

How wide should the base be? How low a perons should stay during the point? Does he suggest a person should stay low throughout the entire point, or just during the stroke production ?

Jun, I think your questions can be answered at this site.

www.apbelt.com
 
Jun,

The folks at IMG, (and specifically the designer of the belt) suggest that the belt be sized to keep you in an athletic stance. Their definition of an athletic stance is approximately 1 foot shorter than your regular height. I am 6'2. Therefore my athletic stance should have me motoring around the court at a height of about 5'2. Doesn't sound like a big difference, but believe me it is. In order for me to lower my height to 5'2, my feet have to be a little more than shoulder width apart, with bent knees and my chest being in an upright posture.

Now try moving quickly in this stance. While you can move quickly and efficiently with your feet this distance apart, it is very physicially taxing. The lactic acid that builds up in your legs is noteworthy.

I guess the best way that I could describe it would be to sit down in your favorite chair and freeze just before you make contact with the seat of the chair. Now make sure that your posture is sound.....By that I mean, make sure that you are not bending forward at the waist. Your chest should be upright, racket up and the weight on the balls of your feet.

As players we typically find this type of position while we are at the net (playing doubles) or waiting to return serve. Personally, I now know that I never really found this stance to often. While I would be low with an upright posture, too frequently I would be standing flat-footed. This is not an athletic stance and does not lend itself to quick, explosive movements to the ball.

The folks at IMG, (Nick included) recommend that you try to maintain a solid posture throughout all of your on court movement. Sure, the execution of your swing may find you driving slightly forward and up, but rarely as recreational players should we find ourselves standing perfectly erect.

If you notice Fedex hitting his backhand, even when he looks to be standing straight up and down at the completion of his stroke, his left (back) leg either has lifted from or is in the process of lifting from the ground (thus reducing the tension were he wearing an AP Belt).

While at IMG, I was told repeatedly, that the majority of my movement should be executed with short quick steps, maintaining a low center of gravity, thus feeling little or no tension from the belt.

Our desire to stand straight up is most noticable after we hit a shot. You rip a forehand and immediately want to relax for a second and check out the masterpiece we've just unleashed.....It is almost human nature. The rub is that this is the time that we should be most "athletic", in a posture that will allow us to react to our opponents reply as quickly as possible.

I hope this helps....If you want to see the belt in action, you may want to pick up a copy of Killer Forehand. I know that Xavier Malisse and one of the Russian stars were training with the belt in the video.
 
Kinda makes sense...
One time that I was hitting the best in my life, I sort of felt that i was staying down pretty well, and my chest was up right....

I could never quite do this again...
Anyone know why?
 
VJH said:
The folks at IMG, (and specifically the designer of the belt) suggest that the belt be sized to keep you in an athletic stance. Their definition of an athletic stance is approximately 1 foot shorter than your regular height. I am 6'2. Therefore my athletic stance should have me motoring around the court at a height of about 5'2. Doesn't sound like a big difference, but believe me it is. In order for me to lower my height to 5'2, my feet have to be a little more than shoulder width apart, with bent knees and my chest being in an upright posture.
This is Edberg's position. I do not know any other tennis players able to maintain it. I.e. completely seated, knees close to 90 degrees, in so many situations, to his extent, but especially when moving to and at the net. Less at the baseline.
http://edberg.free.fr/photos/tennis/78_edberg_volee.jpg

VJH said:
Now try moving quickly in this stance. While you can move quickly and efficiently with your feet this distance apart, it is very physicially taxing. The lactic acid that builds up in your legs is noteworthy.
You bet.

VJH said:
If you notice Fedex hitting his backhand, even when he looks to be standing straight up and down at the completion of his stroke, his left (back) leg either has lifted from or is in the process of lifting from the ground (thus reducing the tension were he wearing an AP Belt).

While at IMG, I was told repeatedly, that the majority of my movement should be executed with short quick steps, maintaining a low center of gravity, thus feeling little or no tension from the belt.

Federer is not that low, he's not "seated", esp at the baseline. Certainly he goes down for some of the shots, say BH in full extension, etc.

He's having his ready stance at his feet at 2 times the shoulder width or there abouts, the knees slighly flexed. Much wider than say Hewitt, which as a result has to do even quicker side steps, as they are smaller.

However, very true on the lower center of gravity and quick steps.
At Wimby, Federer plays the lowest, not in the waiting stance, but when moving, especially when required to do some fast changes of direction, he drops down clearly.

The quads, gentlemen, work your quads, or otherwise this will not work.
 
Marius_Hancu said:
VJH said:
The folks at IMG, (and specifically the designer of the belt) suggest that the belt be sized to keep you in an athletic stance. Their definition of an athletic stance is approximately 1 foot shorter than your regular height. I am 6'2. Therefore my athletic stance should have me motoring around the court at a height of about 5'2. Doesn't sound like a big difference, but believe me it is. In order for me to lower my height to 5'2, my feet have to be a little more than shoulder width apart, with bent knees and my chest being in an upright posture.
This is Edberg's position. I do not know any other tennis players able to maintain it. I.e. completely seated, knees close to 90 degrees, in so many situations, to his extent, but especially when moving to and at the net. Less at the baseline.
http://edberg.free.fr/photos/tennis/78_edberg_volee.jpg

VJH said:
Now try moving quickly in this stance. While you can move quickly and efficiently with your feet this distance apart, it is very physicially taxing. The lactic acid that builds up in your legs is noteworthy.
You bet.

VJH said:
If you notice Fedex hitting his backhand, even when he looks to be standing straight up and down at the completion of his stroke, his left (back) leg either has lifted from or is in the process of lifting from the ground (thus reducing the tension were he wearing an AP Belt).

While at IMG, I was told repeatedly, that the majority of my movement should be executed with short quick steps, maintaining a low center of gravity, thus feeling little or no tension from the belt.

Federer is not that low, he's not "seated".
He's having his feet at 2 times the shoulder width or there abouts, the knees slighly flexed. Much wider than say Hewitt, which as a result has to do even quicker side steps, as they are smaller.

However, very true on the lower center of gravity and quick steps.
At Wimby, Federer plays the lowest, not in the waiting stance, but when moving he drops down clearly.

The quads, gentlemen, work your quads, or otherwise this will not work.

Actually VHJ is right for the most part. Federer does hit his backhands from a low stance. Many of the videos I have on him he is low on the forward swing and rising through.
 
How does this thing encourage you to bend your knees and keep low? judging from the pictures on the website it seems as though when you bend you knees and get lower like that, thats where you find the most resistance? So naturally, subconsciously, wouldn't you not do that so as to not get resistance and make it easier for yourself?

Chris.
 
chrisab508, look once again. When your legs are bent you don't feel resistance. You must have misinterpreted sth....
 
Medical implications?

What are the medical implications of training with the AP belt and playing in a more athletic stance?

Is it easier on the knees, because now shock is absorbed by the quadracep muscles instead of by bone against bone?

Or is it harder on the knees, especially with respect to chondramalasia patella, because the kneecap is pulled in harder?
 
Amazing, I lost money here:-))
I was just reading through the messages in this thread, having no idea how this device looks like, and trying to get a possible/imaginary solution.
When I looked at the site, I saw those elastic bands linking the belt with the ankles. You might not believe that, but it was exactly what I had imagined.
Lost this train:-))
I still have to believe their claims that they are better than the competition. Waiting for comparative reports, if possible.
 
Marius_Hancu said:
Amazing, I lost money here:-))
I was just reading through the messages in this thread, having no idea how this device looks like, and trying to get a possible/imaginary solution.
When I looked at the site, I saw those elastic bands linking the belt with the ankles. You might not believe that, but it was exactly what I had imagined.
Lost this train:-))
I still have to believe their claims that they are better than the competition. Waiting for comparative reports, if possible.

Comparative to who??????????? Maybe you can share with us.

As far as losing money, give me a break! Do you think of and link yourself to everything in tennis? :roll:
 
From the research that I've done, there aren't any devices that provide a similar "feedback" mechanism for proper movement. By this I mean, if you are wearing the AP Belt and deviate from the proper athletic stance, you receive feedback via the tensioning of the bungee cord. It gets tougher to move around the court when you are not in the athletic stance because the cord tightens...It is really something when you have a reminder of how frequently we tend to stand straight up during a point.

Frank had a question regarding the medical implications of the device. I'm no doctor and I don't even play one on TV. So I can't speak decisively regarding the medical implications. However I can comment on the benefits of moving "athletically" while on the court.

In an effort to reduce the pounding of hard court play, I believe that it is important to try to "do more with less". By that I mean, if I can move to the ball more quickly (with one less step) 6 out of 10 times, I am reducing the strain on my body. By moving more efficiently, I have to believe that I am reducing the pounding that I take on the hard courts.

I have had both back and knee problems throughout my athletic career. While wearing the belt, neither have been aggravated. I may feel more physically drained after wearing the belt for a workout (particularly in my thighs), but I don't feel more "beat up" from my time on the court.

Moving properly and "athletically" not only makes me a better player (as I can execute more shots from a balanced position). It also helps me build the fitness level that I need to stay on the court (regardless of the surface) for a longer period of time.
 
VJH said:
From the research that I've done, there aren't any devices that provide a similar "feedback" mechanism for proper movement. By this I mean, if you are wearing the AP Belt and deviate from the proper athletic stance, you receive feedback via the tensioning of the bungee cord. It gets tougher to move around the court when you are not in the athletic stance because the cord tightens...It is really something when you have a reminder of how frequently we tend to stand straight up during a point.

OK, thanks.

Now, as I've haven't see the device, could you tell me how is it different from two plain cords attached between a belt on the middle section and two belts on the ankles, which would not let you get up from a seating position.

Or from this product:
http://www.onlinefit.com/products/index.cfm/Product/290
 
hey, they look the same, but the price? $58 against $149.95 Hmmmmmmm.......
 
Marius_Hancu said:
VJH said:
From the research that I've done, there aren't any devices that provide a similar "feedback" mechanism for proper movement. By this I mean, if you are wearing the AP Belt and deviate from the proper athletic stance, you receive feedback via the tensioning of the bungee cord. It gets tougher to move around the court when you are not in the athletic stance because the cord tightens...It is really something when you have a reminder of how frequently we tend to stand straight up during a point.

OK, thanks.

Now, as I've haven't see the device, could you tell me how is it different from two plain cords attached between a belt on the middle section and two belts on the ankles, which would not let you get up from a seating position.

Or from this product:
http://www.onlinefit.com/products/index.cfm/Product/290

Thanks Marius, I will check into this one. Anymore like this?
 
I grabbed this from APbelt's website. Perhaps VJH and BB can tell us
if the pulleys do make a difference?


Don't be confused by other products that appear to be similar to this patented invention. What makes this training product so effective is the free flowing cord that passes through the pulley during performance, and the geometry of the 3 point triangle created in the cord attached to one ankle, passing up through the pulley, then down to the other ankle. When correctly adjusted to the height and build of a player, the geometric shape of the triangle contours to meet the conditions of the situation, governing the height of the center of gravity, while allowing all the correct techniques to flow naturally. This free flowing cord action through the pulley ensures that you only feel resistance when deviating from efficient technique, thus making it very effective at instantly correcting technical flaws the moment they occur.

Other similar looking devices that use two separate cords attached to the back of the belt, are strictly designed to provide constant resistance at all times for the sole purpose of strengthening the leg muscles and are not designed to be used to develop or govern technique. The constant resistance these other products provide will not train proper technique or accomplish the same results.
 
As previously mentioned, work the quads. But also work the hamstrings (both strength and flexibility) as well. The quads, being the 2nd largest muscle group in the body (after the glutes), can sometimes "overload" the hamstrings (e.g. a 70/30 strength ratio vs. the hamstrings) and that can cause injury to the hamstrings.

That said, about the AP Belt: check out the "gallery" section....despite the fact that she's playing with a PD, that girl wearing that APBelt has a silky sweet set of pins (cute "toliet" as well).
 
When I was custom fit for the belt, I was told that the intent of the device is to make fluid movement instinctive. If my movement becomes instinctive or natural, I will then be in a position to focus all of my attention on the ball, or on executing my point building strategy. They used the analogy of running down a flight of stairs. One can navigate a flight of stairs pretty quickly if you aren’t thinking about what your feet are doing. The minute you look at your feet (to make sure you don’t miss a step?) your pace slows and you run the risk tripping yourself up….Definitely not efficient. “Clean” tennis movement should become an afterthought in your game.

The feedback mechanism of the AP Belt is free flowing. You only feel tension when you deviate from an athletic stance (low center of gravity and a wide base). Most often, the tension feedback that I feel occurs just prior to executing a stroke. I move to the ball decently, but as soon as I prepare to nail a forehand I get a little reminder that I need keep my center of gravity lower.

My first experience with the belt was pretty interesting. When I first felt tension, I actually found myself trying to relieve this tension by bending at the waist. Obviously this had no effect. It just goes to show how out-of-whack my instinctive response was right out of the gate. I’m sure that I executed this same move (bending at the waist) when a teaching pro would tell me to “get lower”. Or, if someone commented after watching me hit that I needed to stay lower, I would make a mental note of this instruction, but had no feedback mechanism to tell me if I was actually doing this correctly during my next session on the court.

I haven’t tried any other devices, but I think that the benefit of the AP Belt is the “constant” feedback mechanism. I don’t feel constant tension, but do get constant feedback (slack when I am moving correctly, tension when I’m not). This may be why the developer of the belt opted for a pulley system and not a fastened “tensioner”.

Hope this helps.
 
VJH said:
When I was custom fit for the belt, I was told that the intent of the device is to make fluid movement instinctive. If my movement becomes instinctive or natural, I will then be in a position to focus all of my attention on the ball, or on executing my point building strategy. They used the analogy of running down a flight of stairs. One can navigate a flight of stairs pretty quickly if you aren’t thinking about what your feet are doing. The minute you look at your feet (to make sure you don’t miss a step?) your pace slows and you run the risk tripping yourself up….Definitely not efficient. “Clean” tennis movement should become an afterthought in your game.

The feedback mechanism of the AP Belt is free flowing. You only feel tension when you deviate from an athletic stance (low center of gravity and a wide base). Most often, the tension feedback that I feel occurs just prior to executing a stroke. I move to the ball decently, but as soon as I prepare to nail a forehand I get a little reminder that I need keep my center of gravity lower.

My first experience with the belt was pretty interesting. When I first felt tension, I actually found myself trying to relieve this tension by bending at the waist. Obviously this had no effect. It just goes to show how out-of-whack my instinctive response was right out of the gate. I’m sure that I executed this same move (bending at the waist) when a teaching pro would tell me to “get lower”. Or, if someone commented after watching me hit that I needed to stay lower, I would make a mental note of this instruction, but had no feedback mechanism to tell me if I was actually doing this correctly during my next session on the court.

I haven’t tried any other devices, but I think that the benefit of the AP Belt is the “constant” feedback mechanism. I don’t feel constant tension, but do get constant feedback (slack when I am moving correctly, tension when I’m not). This may be why the developer of the belt opted for a pulley system and not a fastened “tensioner”.

Hope this helps.

Looking into this further. The product listed above is not the same as the AP Belt. The product above is giving constant tension where the AP belt is not giving any tension when the player is in the right position. This promotes free-flowing movement in the "athletic position" instead of movement with constant resistance from the other product. The other product is a strength trainer while the AP belt is a body position trainer with a conditioning element. It is the body position training element that is where the AP belt earns its value. Yes, a byproduct of this type of training is strengthening your legs but that isn't its main purpose. It is to train you on how to move and condition your body to want to move and get used to moving a certain way.

In this case, the feedback (non-resistance) from the AP belt is superior because of what it is training you to do. Without tension you know you are in the right position and can move freely. If you start to rise due to fatigue or other technical problems, the feedback is in the form of more tension.

In a nutshell, it takes the place of a performance coach constantly watching your posture and body position while you concentrate on hitting the ball. The AP Belt pays for itself after several practices.



I copied this from the AP Belt site for reading:
===============================================
What makes the AP Belt different from anything else on the market?

Don't be confused by other products that appear to be similar to this patented invention. What makes this training product so effective is the free flowing cord that passes through the pulley during performance, and the geometry of the 3 point triangle created in the cord attached to one ankle, passing up through the pulley, then down to the other ankle. When correctly adjusted to the height and build of a player, the geometric shape of the triangle contours to meet the conditions of the situation, governing the height of the center of gravity, while allowing all the correct techniques to flow naturally. This free flowing action through the pulley with the custom bungee cord I have manufactured for the AP belt, is ideal for the resistance-feedback process to function properly. Together, it ensures that you only feel resistance when deviating from efficient technique, thus making it very effective at instantly correcting technical flaws, the moment they occur.

Other similar looking devices that use two separate cords attached to the back of a belt, are strictly designed to provide constant resistance at all times. Their sole purpose is to strengthen the leg muscles through constant resistance, which could be accomplished in the weight room or by wearing a 15 lb weighted vest. Since the resistance is constant, there is no feedback process involved, in terms of learning "right from wrong" and training efficient footwork technique. The lack of a free flowing cord can impede fundamental techniques by discouraging the tendency to broaden the base of support for the reaction and hitting stances. The slide on clay with the opposite leg needing to fully extend as an effective counterbalance, is another example of how it resists proper technique. So, while some things may look similar, the difference is in the performance and the results they achieve.
 
VJH & BB, I curious to know how it feels when one extends up into a
shot (stroke), does it feel restrictive?

Thanks
 
George,

I believe that the pulley is the element that is responsible for the "continuous" feedback property of the belt. Although, I think that the protorype belt did have a free-flowing "O" ring. My guess is that the pulley yields even less friction than the "O" ring and probably promotes less wear and tear on the bungie....

You asked if the belt felt restrictive when you execute a shot where you are forced to raise your height. Maybe the real question is should we really be extending on as many shots as we believe we should. The creation mechanism of power and control is more of a core turn....than a core raising. If you raise above your athletic height, you are reminded that your center of gravity has risen.
 
VJH, thanks very much for your feedback.
Much appreciated. I just want to make sure it is something
that would be useful before dishing out $150.00 US

George
 
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