Whole body Vibration machine Review - Compare every major vibration exercise plate - Compare Vmax Pulser, Hypervibe G217, Powervibe, VibePlate Zaaz 20
Their are 2 types of linear machines on the market: Low Displacement and High Displacement. This is the big choice to make when choosing a linear machine. The Vibeplate has the lowest amplitude and displacement on the market with a super high G force while the DKN and Powervibe models have a medium amplitude while Hypergravity has the highest (6mm).
The big difference is that some are on a spring suspension system and some are not. Most people prefer a high speed vertical machine with low displacement, around 1mm or even lower like the Vibeplate. Anything over this I have to bend my knees to avoid it feeling like a jackhammer. This is cool and all to bend my legs if I am doing squats but if I want to feel the vibration all the way up my back and legs, then I have to bend my knees. This is an entirely different reason for using the machine. Many people buy these machines for bone density and don't realize which one works the best.
The linear machines are great for people that can't handle any hip movement like the pivotal types. Just say someone has a really bad knee and can't handle any ballistic impact or jarring, the Vibeplate would be my first recommendation. The Vibeplate is my most popular model for those that have bad backs and can't handle any jarring.
I only recommend the spring loaded vertical machines for those who are more focused on exercise, those who will be squatting and can handle the jackhammer effect.
If someone didn't want a linear and wants a pivotal type that has the least ballistic impact and wants to stand without bending their knees, any machine that has a lot of force around standing at 7mm amplitude is the sweet spot. At lower amplitudes there is really not enough G force and its more of a waste of time on the plate. The decrease in G force is exponential. After 7mm, it is exponentially stronger. At 5mm on a Hypergravity G17 it feels strong but at 7mm just 2 inches further, it feels way way more intense.
With linear machines such as the Vibeplate, I recommend the steel version over the aluminum for people who want a more intense vibration. I like the smallest plate the best. The 24 by 24 has the same motor as the larger 24 by 40 Vibeplate and the smaller one actually feels about 30% stronger. The larger one has more steel to move and it absorbs the G force instead of the body. The aluminum model has the same size motor but you don't feel the G force as much.
The larger amperage linear machines like the Hypergravity are good as long as someone can handle that amount of power. Those go to 80 hertz. Sitting on the cushion on one of these my rear end and legs itched like no other machine I've ever been on. The Vibeplate is 2nd in intensity but it doesn't have the jarring and ballistic impact and I can stand without having to bend my knees.
Choosing a linear vs a pivotal or spiral type is a very personal thing. About 50% of the people like the linear and the other 50% like the pivotal or spiral type for their own reasons. I usually can pick out which machine every time when someone takes my quiz. I have no hidden agenda and am not trying to steer people in one direction or another. I will go over the answers to your quiz and tell you reasons why I recommend linear or pivotal. Take my vibration quiz here and see which machine I recommend.