Posted by Conchita Van Meurs
Pneumatic versus Electromagnetic Radial Shockwave Devices
Radial Shockwave devices use a ballistic projectile (or bullet) to create a pressure wave. The bullet hits a strike plate at high speed which creates a pressure wave that can penetrate tissue. The energy to “fire” the bullet can be created by either an air compressor or by an electromagnetic force.
Due to their air compressors, pneumatic shockwaves measure their pressure in Bars. Electromagnetic shockwaves measure their pressure in mJ. Both of these measurements are standard for physicists. Saying one is better than the other is just like saying inches are better than centimetres, they are both just measurements.
To determine how powerful a Radial Shockwave therapy machine is, you need to look at the total Bars or mJ the unit can produce. This chart allows you to compare apples to apples.
Regardless of which source is creating the energy, another factor in Shockwave therapy is the frequency of the “shots”. This frequency is measured in Hz for both pneumatic and electromagnetic units. Therapy protocols will typically specify both the Bars/mj and the Hz, plus the total number of shocks being recommended.
Before investing in a new Shockwave unit, it is a good idea to investigate the researched protocols for the conditions you intend to treat, to assure the device can achieve the parameters you will require. The good news is that all Shockwave devices approved in Canada, that meet these parameters, are also proven to provide effective therapy. See Radial Shockwave Therapy Indications and Protocols
PROS & CONS
Pneumatic devices typically put more strain on the practitioner
The typical hand piece for a pneumatic device requires two handed operation or the practitioner to apply force. Therapists with a slight build or with chronic injuries may find this more taxing than the weighted hand pieces offered on some electromagnetic devices.
Not requiring the additional force from the practitioner, also makes a weighted handpiece more consistent in therapy, as practitioners with different strengths will provide the same therapy.
Pneumatic devices are often slightly cheaper to operate
Pneumatic handpieces usually require a “rebuild” at 1 million shocks. These kits are typically less expensive than the hand piece replacement (at 2 million shots) of the electromagnetic devices. However, since electromagnetic devices create their power at the handpiece, changing the handpiece is like getting an entirely new motor and not just a new projectile. This could save on repair expenses over the long term.
Vitality Depot offers both electromagnetic and pneumatic Shockwave devices. To see our full offering go to SHOCKWAVE