So, as many of us know, I am the director of clinical training for Whole-Body Vibration Vibraflex WBV) Platform -form. I firmly believe in the benefits and uses of WBV, and I think he has a very comprehensive role in what many of us are doing. At this point, I do not see it as a fad or something that will come and go simply because it is not something that can be duplicated by any other method. We will talk about the mechanics of what a WBV platform is, how the body reacts to it, the many uses evidence-based to WBV and fundamental differences between some of the business units that are available.
There was a strange path that led me to become interested in WBV first. He was in my second year of physical therapy school when I was offered my first job of the sports training professional basketball. The team was the New Jersey Shorecats in Asbury Park, NJ led by Rick Barry. Now I was not there for Rick Barry as some veterans remember, but in case anyone is wondering, Rick is not a bad guy in any way. I heard the stories, but as with many types of celebrities, what is portrayed is probably closer to the opposite of the truth. Well, between 1998 and 06, I was fortunate to have worked in professional basketball every year, 2 relays in the NBA with the Nets and 76ers. And above all as a certified athletic trainer, I have been privileged to become very familiar with patella tendonitis, anterior knee pain mandatory suffered by most athletes in jumping sports.
As a young enthusiastic clinician, I made all the ultrasound, cross-friction massage, right leg raised as I was taught, and most guys have improved. Of course, they were also at rest, and that young super humans, it was on my head to understand that the rest was what was the better, not the fake rehab. When I got to the Sixers in 03, he was at the same time that I entered the screen of functional movement and using the principles with the team. Apart from the brilliance to understand the integrated motion and regional interdependence of FMS and its training methods, there was one thing about the FMS that really got me caught. Whatever FMS score, when we saw the bar or heavy movement got faster, the pattern would disparage a harmful pattern. It was in their head like a learned movement. All recycling motive was not enough to combat the literally billions of jump shots from an NBA player had taken the time they were 5 or 6 years. The reason is that poor squat suddenly perfect jump always thwarted what we were doing with our training. We needed another tool to break the pattern of movement in learning level. How could we keep screwing brain movement?
Enter Whole-Body Vibration. One of the training centers that some of the guys went in the summer had a WBV platform, so I would shake up and leave. He was terribly uncomfortable, and my players did not really use it for the same reason. But if it were available to them, I had to learn about it, which I did. One thing I learned is that one of the main principles of the VTC is the activation of stretch reflex, which of course is a spinal reflex. The stretch reflex suggests that when placed on a sufficient degree of stretch, a muscle contracts to counteract the elongation.
Therefore, the muscles contracted as a result of a spinal reflex when the machine. The contract signal began on the floor, went to the spinal cord, then back to the effector muscle. The brain was out of the equation. The brain fortress had on the movement of muscles has been lifted. I also thought a long time that I could get into the position I wanted, I could activate the stretch reflex and train the muscles we wanted for a good squat and lunge hip-dominant pattern. And we could keep the central neurological control away from the model.
we therefore obtained a platform in the summer of '05, and '05 -'06, we had zero missed games patella tendonitis. I will not sit here and say one thing that we did was the result of anything good or bad, but it was what got me in WBV. It became a huge interest of mine especially after the positive results in how we used it. And it was a little too good for the ego when Allen Iverson said that we would have that # @ & # ^ thing for the last 9 years.
So what happens when the machine turns on? Most WBV platforms are mechanical. I know of a machine that uses its kind to create the floor to vibrate. Anyway, vibratory or oscillatory movements in the soil of 5- to 60 times per second depending on the make and model. So, the ground vibrates, and ask if it's like the belt of the old 1970 that wrapped around your waste to shake the fat on you. Well, it is quite different.
Let's go back to the 1950s when Russia was extremely committed to space travel. Of course, in space, there is zero gravity, and as we know the deloading reliably body to bone loss. Russian cosmonauts used some of the first WBV platforms before going into space, and on their return, they had less bone loss than their colleagues who had not trained with vibrations. How did it happen?
This happened because when the WBV platform is, this stage is the difference of the Earth in relation to gravity. He is now a hypergravity environment. The combination of amplitude and frequency in which the platform is in motion (calculated by a multitude of serious equations) creates a "false Earth" which gives G Forces much larger than what is on the Earth. Gravity is a measure of the acceleration, and the earth, it is still 9.8 m / s2. We weigh what we weigh on Earth because 9.8 m / s2 says we do. This degree of traction against us requires additional degree of force generation for us to stand. If the WBV platform lets say 3 G, the acceleration is now close to 30 m / s2, it would theoretically take 3 times more force to maintain the position. It does not quite work that way, but why the cosmonauts that formed with WBV had less bone loss was because they were trained in a hypergravity environment before they went into space. They increased their bone density formation in a hypergravity environment, so when they lost the density zero G is in space, it was not as big an impact.
The equation F = MxA governs all strength training what we do. How to increase the strength of load mass. More plates on the bar means more mass, which is really just an extension of our weight, but we said before the acceleration remains the same on Earth. Now we have a tool that can increase strength without increasing the mass. G increase of the platform means that we can weigh more than what we weigh 1 G, and require more force to maintain the vertical position. The bar # 45 we have on the platform is not really more # 45. It feels that way because, back to my original "gravitation" to WBV, the brain is out of the equation.
So basically, by far, when a WBV platform begins to vibrate, we are witnessing a hypergravity environment created, allowing us the only possible way to manipulate the A to F = MXA.
What happens when we get on the platform? The body responds to vibrations based on the phenomenon of Tonic Vibratory Reflex (TVR). TVR said the following. When a muscle is subject to certain safety frequencies (below 30 Hz) vibration stimulus, stretching the muscle will respond by stretching reflex and offer a contraction. He also says that when a soft muscle vibrations met, it responds with the Golgi Tendon response by continued relaxation. So we can see that depending on the position of a muscle is, we can obtain a reinforcing effect or flexibility effect. It is somewhat against-intuitive when you think about it, but the TVR shows a stretched muscle will be stronger, and a relaxed muscle will relax.
There is a wealth of research that develops regularly to support the base effects of the strength and flexibility, as well as improving bone density profiles that we mentioned before. I would never say the formation of vibrations better than any other building tool, but research shows to be at worst equal. And now for those of us who have a disabled individual, be deconditioned or in pain or for any reason resistant using motifs responsible for training the force, we have a great tool for building effects without ever touching a weight.
By many accounts strength is secondary to power, and we know that our definitions. So, let's put things together. As the stretch reflexes shots, we get a muscle contraction. These ontractions occur in a hypergravity environment, so there's a measure to increase the strength of the contractions. And as this hypergravity environment is created by a frequency, it is the same frequency that says how many times per second the muscle contracts. submaximal loads carried at incredibly high rates of speed. This looks like the power of training for me. As a platform vibrates at 26 Hz, we get 26 contractions per second. Now we have another extraordinary tool to support training for power.
Our list of uses, including so far the practice based on evidence for others ...
- force
- The flexibility
- power
- bone density profile
- Profile hormonal Female
- post-training recovery
- cardiovascular measures
- Muscle excitability (Movement Pattern Rehabilitation)
- Increased blood flow
- Increases HGH and testosterone
- Decreases in cortisol
- fall prevention
- pain reduction by Descending inhibitory control
- Improved control of continence
- Gait training
- muscle activation in Neurologically challenged (stroke, spinal cord disease Parkinson) patients
As brilliant as training effects may occur through short training sessions, overtraining effects can be just as fast. When we train in a foreign environment based on increasing severity, an evidence-based approach is particularly important. Play around on a WBV platform or not following its independent research can ruin a comprehensive training program. Remember that WBV simply load by increasing the acceleration of F = MXA. You would not charge the bar (ground) for someone who could not move his body weight. Loading of the bar due to the acceleration is equally wrong choice
Contraindications include, but are not limited to :.
- processes inflammatory assets
- Acute thrombosis
- bone tumors
- unhealed fracture
- recent implant or arthroplasty
- Gallen, kidney or bladder stones
- known metastases
- Pregnancy
The frequencies of WBV that independent research has shown positive results were in the 20s, mainly the high 20s. EMG research clearly shows that after 30 Hz, there is a huge drop in the strength of the contraction caused by the stretch reflex. A recent study in the Journal of Strength and Conditioning using Powerplate and frequencies of over 30 Hz showed a depreciation of the H-Reflex, which is the principle of muscle excitability. What this basically means that for a time after the use of higher frequency vibrations, it has become more difficult in fact to initiate a muscle contraction. frequency issues, and independent research dies at 30 Hz.
I'm not aware of any comparative study that showed a frequency program> 30 Hz outperforming a frequency of
So why use a platform higher frequencies, if less than 30 Hz is where the research is? The answer lies in the type of platform. There are 2 types of WBV platforms regarding the direction of how the vibration is transmitted: Vertical Vibration Power Plate as Wave iTonic, Pneumex, etc., and Rotational Vibration, which is only the Vibraflex. Powerplate actually moves in three planes, but 70% thereof is vertical, and it is recognized as vertical in the literature. 3 planes Vibration any vector vertically, so it is a rather sensational statement to suggest, as we move into 3 sections, a platform that moves in 3 planes is better. On a vertical platform, the floor will be essentially vibrate up and down. Thus, in the position in the vertical vibrations, you are literally on the floor in a hopping pattern. It happens so fast you do not reach the ground before returning to meet you.
On a platform of rotation, which there is only the technology is patented, the vibrating platform side to side like a teeter totter. The scheme is similar to a mutual approach or a bounding pattern. Now we have said before that research shows the success with less than 30 Hz, and this is true of the two vertical platforms and rotation. I suspect that the reason why some platforms do not subscribe to the research is because 1) the sensationalism of more is better, which is based on evidence, and 2) the vertical vibrations at the appropriate frequencies is terribly wrong with comfortable.
Why people complain of chattering teeth and bulging eyes on a vertical platform? Keep shoulder width and look down between your legs. There is a lot of nothing, right? Well, imagine a line of force, in our case vibration coming straight into your private area of the ground. There are not a lot of muscle to absorb vibration through the principles of TVR. Thus, the vibration continues through the pelvis and the spine. Remember the bone is an elite conductor of vibration. Again very little muscle is in the immediate line of vibration, and continues to travel in the skull where there is nowhere to go. Dr. Rubin at SUNY-Stony Brook measured 3 G is in the heads of people involved with Power Plate. The increase in head acceleration should sound a lot like what our football players face many injuries and severe frontal collisions. People complain of eye pain, headaches and symptoms after concussive vertical vibration for this reason. Powerplate suggests using a deep squat model for the vibration of the head, but if the person can not deep squat? Poor models squat on toes and using buffers to dampen vibration limit the usefulness of these platforms. The effectiveness is questionable in the literature, and the negative effects of vertical vibrations are documented. I recommend reading the literature for yourself and not rely on flash control panels or amazing visas.
Thus is safer rotational vibration? Rubin only measured 0.2-0.3 G is in the head on a Vibraflex. Visualize the same shoulder width position. Now imagine two lines of vibration just from outside your feet traveling to your hips. As this happens through movement of teeter totter, vibration vectors glut medius and quadratus lumborum, the same muscles that we are in tune with what we are trying to improve the stance measures one leg. There are no close patients sensations through the head with the rotational vibration. This is supported by the scientific support of Rubin, as well as empirical data by individuals who had the opportunity to compare the vertical platforms and rotation.
Does the work vertical vibration? The research is very inconclusive. Is there a challenge to search very dominant that its security must be studied further? Yes.
rotational vibration Is Better? I think so, but I'm not the end all, be all when it comes to ibration. I'll change my tune in a millisecond if I was shown convincing evidence. And not articles or high users where the platform was given to them for free.
Whole-body vibration is a powerful and informative tool. Please continue your own research to verify for yourself the statements of this article and learning if it has a role in your practice.
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Charlie Weingroff PT, ATC, CSCS
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- Whole Basics Body Vibration for physical therapists - 1 May 09