With the cluster of confusing information and misleading marketing messages spread across the net, it's extremely difficult and in fact, nearly impossible to get a definite answer on many things involving Whole Body Vibration Equipment.
Especially when it comes to the terminology used to describe vibration plates and the technology behind them. It seems as though almost everyone either makes up their own terminology or put their interpretation into a mix of terminology used by a variety of other sources.
Pyle Headrest
Because there is no regulating authority in the WBV equipment industry, people are free to promote whatever message they see fit and will benefit them the most.
At the very core of vibration equipment there are a few fundamental terms that absolutely must be defined correctly and understood by everyone.
The most basic and fundamental term that there is an inherent need to define once and for all is the term whole body vibration.
What follows is my interpretation of the most accurate definition I have found to date. The foundation for my definition is originally from the book "Using Whole Body Vibration in Physical Therapy and Sport: Clinical Practice and Treatment Exercises" by Alfio Albasini. I have expanded on Albasini's definition to more thoroughly describe the technology and it's major differentiation characteristics:
Whole Body Vibration is a mechanical stimulus characterized by oscillatory motion delivered to the entire body from a platform. The devices currently available use two completely different systems to accomplish this, they are:
Vertical vibration, which is produced by the entire vibration plate oscillating uniformly up and down with only a vertical translation. Vertical vibration devices offer low amplitudes (usually 2-6mm) and high frequencies (most commonly 20-50Hz), and
Pivotal vibration, which is produced by reciprocating vertical displacements of the vibration plate on the left and right side of a fulcrum, thus increasing the lateral accelerations. Pivotal vibration devices offer larger amplitudes (usually 10-14mm) and lower frequencies (most commonly 5-30 Hz).
Take note that, despite the larger amplitudes of pivotal vibration systems, the vibration (acceleration) transmitted to the head is significantly less than the amount transmitted to the head with vertical vibration systems.
Now you have a solid, factual answer for the definition of this term.
Add this to your base of fundamental knowledge about whole body vibration equipment and use it to gain a more complete and definite understanding of this technology and the correct terminology used to describe it.
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Pyle PL72HRGR Adjustable Headrests w/ Built-In 7'' TFT/LCD Monitor W/IR Transmitter & Cover (Gray) Feature
- 7''TFT Monitor With Pillow - Brightness: 350cd/M2 - Power Input: DC 12V
- Headrest with Zipper Hide-Away Cover - PAL/NTSC Compatible - Built In IR Transmitter For Wireless IR Headphones
- Aspect Ratio: 16:9 Widescreen - Auto Switching - Adjustable Mounting Posts: 4.3'' To 7.1''
- High Resolution: 1440x234 - Full Function Wireless Remote Control - Dimensions: 11.5''W X 8.3''H X 4.7''D
- Contrast Ratio: 300:1 - English OSD Menu
Pyle PL72HRGR Adjustable Headrests w/ Built-In 7'' TFT/LCD Monitor W/IR Transmitter & Cover (Gray) Overview
On long trips, it’s important to keep the backseat entertained and the driver comfortable. That’s where this pair of grey adjustable headrests with built in 7” LCD monitors comes in. The picture on the screen is bright, crisp and accurate, thanks to the 1440x234 resolution, 300:1 contrast ratio, 25ms response time, and 16:9 display ratio. These take two standard RCA inputs, so you can hook up your DVD player, video iPod, or video game console with ease. A full function remote control provides complete wireless access to your monitor’s settings. The kids will enjoy themselves in the backseat and you’ll be comfortable and safe in the front knowing a headrest will protect you. This model also includes a zip-up cover for the screen to prevent sun damage and to keep your car safe when you’re not around. It’s also compatible with IR wireless headphones, so you can enjoy peace of quiet while the backseat has a blast. Best of all, these headrests are easy to install, and fit in many car and SUV models.Available In Stock. |
