Since its introduction in 400 B.C., the equipment used for inversion therapy has gone through several different evolutions. Hippocrates first used inversion therapy on a patient by tying him upside down to a ladder, according to several sources, including InversionTables.com. Since then, inversion therapy has changed to include the use of specialized pieces of equipment called inversion tables.
Basic Features
All inversion tables bear a few basic features in common, whether they are for professional or home use. A platform supports the user and may be rotated to remove the effects of gravity from the user. Many offer a sliding backrest and locking mechanisms so that exercises such as crunches may be done while the table is inverted. Not all platforms are the same size, and not all tables offer adjustable angle settings.
Quality
Because there is no governmental regulation regarding the function or design of inversion tables, there is some risk that a poorly made table may be purchased. There are several design standards one should watch for when shopping for an inversion table: strength testing conducted by the manufacturer; endurance testing covering all closures and pivot points; and stability testing. In addition, shoppers should look for a wide base to ensure proper stability, clear assembly instructions and a sufficient weight rating.
Professional Use
Professional-grade inversion tables are used by physiotherapists, massage therapists, osteopaths and chiropractors. Some fitness gyms also offer inversion tables for members' use. These tables use heavy-duty materials for longevity of the equipment and often have more advanced features such as the option to use the table in a face-down or face-up position. Because of the sturdier construction, professional models are heavier than home-use models. Some professional inversion tables weigh up to 80 lbs. Prices for professional grade inversion tables range from $200 to $1,200 as of March 2011, according to Comfortchannel.com.
Home Use
Inversion tables meant for home use offer several features convenient for personal use. Many have a portable, folding design meant to save space in the home and a lightweight construction so it may be moved around with little difficulty. Most home-use models weigh less than 30 lbs., and cost between $90 and $300 as of March 2011, according to Ebay.com.
Caution
MayoClinic.com recommends that people with high blood pressure, heart disease, or glaucoma should avoid inversion therapy. In addition, pregnant women should not use inversion tables because no testing has been done to guarantee safety.
