Ironman Gravity 4000 Inversion Table ReviewI’ve picked apart the Ironman Gravity 4000 Inversion Table in my review and want to share with you why it’s the number one selling incline unit on the internet today. During my research I uncovered information that makes me able to describe hidden features in the Ironman Gravity 4000 table that you will not find described in this level of detail anywhere else.


One thing that drew me to the Ironman Gravity 4000 inversion table was the tubular steel frame. This frame has an extra wide footprint measuring 29 inches wide.  The frame is constructed of 2”x1” rounded tubular steel in a factory formed one piece front and rear leg design. Because these legs are each formed from one piece of tube steel they are much sturdier that units assembled with single corner legs bolted together with cross bars.

SOLID CONSTRUCTION – The number one concern of anyone new to inversion table therapy has to be a concern about stability and safety. Because of the wider frame stance and the use of a heavier duty frame material than almost all other models by any brand, you can count on the stability of the Ironman Gravity 4000 to deliver years of safe use.

[toc]These leg assemblies are powder coated for extra durable scratch and mark resistance. Powder coating is a process of spraying a heavy duty material on the metal and then baking the material at high temperature so that it melts and bonds to the metal. This differs from most metal frame products which simply spray paint on the surface.

One of the key features that influenced my personal purchase of an Ironman Gravity 4000 inversion table was the 2 ½” thick multi-layer memory foam backrest. I’m a big fan of memory foam because it doesn’t break down over time which could cause the backrest to lose its cushioned support. 2 ½” thick foam means a much more comfortable backrest as compared with a thinner foam backrest or ridged plastic backrest. To help insure years of durable use, this backrest is covered in water resistant vinyl and the vinyl is double stitched at all joints to make sure it holds up to regular daily use.

Ankle Support

Ironman Gravity 4000 Inversion Table ReviewAnother thing that intrigued me personally about the Ironman Gravity 4000 inversion table was the fact that it has a palm activated quick release ankle support system. This ankle support lock works on a ratchet gear system so all you have to do is step onto the foot pads, press down on the palm button and move the bar back to wrap the cup designed supports around your ankles.

When you are finished with your session, you simple press down and forward on the palm release to move the front ankle support pads easily out of your way. No messing around with pulling bar locks and having to slide a clumsy T-bar ankle support in or out.

Many people voice concern about how the ankle supports on most inversion tables feel. This is because when you go into an inverted position you will be supporting quite a bit of your own weight by a pulling feeling around the front and rear of your ankles. With the Ironman Gravity 4000 table you will find a soft rubber wraparound ankle support snuggly holding both the front and rear of your ankle area. I don’t believe that there is a better feeling inversion ankle support system available on any unit for any price. This is a similar design to the original gravity boots that held your entire weight comfortably by the ankles.

Many less expensive models use round rubber or foam pads which simply squeeze the ankles and can cause excessive pressure points. If you experience excessive soreness while using this or any other incline table, try wearing a pair of extra thick socks or possibly different shoes to help relieve some of the pressure.

During my research I saw where people would ask if you had to where shoes to be able to stay locked into an incline bed. My experience with the Ironman Gravity 4000 has been such a comfortable ankle fit that I often use it with no shoes or socks. This will be a personal decision you can check out on your own machine.

Inversion Options

There are many features to talk about when we discuss the inversion options of the Ironman Gravity 4000 inversion table. Probably the most important is that you will be able to go into full 180 or vertical incline if you want to. Many other models are limited to approximately 160-170 degrees.

Ironman Gravity 4000 Inversion Table 3 position inversion control barThe next important feature that relates to the incline angle would be the 3 position holes that you choose from when setting up your new Gravity 4000 table. These three holes are located on the pivot bar assembly and each changes how quickly and steeply the unit will tilt.

For beginners it is advised that you set-up your unit with the hole farthest from the pivot point like shown here. This will cause a more gradual or arcing swing of the table. It will also limit how far you can swing the table into incline though. There is an intermediate setting as well. For advanced users, the hole closest to the pivot pin will give you an almost immediate arc bringing you right into incline and back. This is basically a one time set-up you will decide on when assembling your table.(you can change it later by disassembling the table pivot system and setting a new position)

Your inversion experience will be controlled by a simple to use safety tether strap that is easy to adjust and safely restricts the degree of incline to any position you want. While this feature is good for both beginners and experienced users I did find that if multiple people will be using the machine and each likes a different level of incline, it will be important to recheck that this strap is set correctly for you before each use, in case someone else has changed it.

Ironman Gravity 4000 Inversion Table infinite tether safety control strapI found the Ironman Gravity 4000 incline unit to have the widest range of user setting among all units I’ve researched. You will find that it has precise size settings to accommodate anyone from 4’-9” to 6’-6” tall, weighing up to 350 lbs. Many similar models are limited to only 300 lbs and this was another factor I considered when making my purchase. Inversion is a balancing act, think of a fulcrum with a center pivot and equal weight on each side of it. So once you have your table set up you will want to experiment with height setting just above and below your actual size in order to find the best height to weight balance for your body. I read about someone who lost over 70lbs during training while using this table, during the process he had to adjust his height setting because his body weight shifted during the training.

When you have found your point of balance, you simply raise your arms up over your head and this shifts the weight enough to tilt the table back effortlessly. When you’re ready to set back up, simply bring your hands up to the padded safety hand rails found on both sides and pull yourself back upright with little or no effort.

The Ironman Gravity 4000 inversion table does not feature an incline lock for abdominal workouts but because of its full inversion feature, experienced users will be able to perform a limited crunch workout. Ironman does offer 4 other models that I’ll cover in later reviews that offer a lock position inversion control designed for abdominal workouts.

A popular question deals with whether you have to have a spotter or second person present when using an inversion table. I think this question is best answered by asking yourself about your current health status at the time you’ll be climbing onto the table. If you have any concern about blood pressure, dizziness, or even a head cold which could be affected by the change of blood flow to the head, then consider having someone present to spot your session. If you have no immediate health concerns then by following the listed directions that come with your table including stretching warm-ups, there should be no safety concern that should require a second person spotter.

Assembly & Storage

I found the Ironman Gravity 4000 owner’s manual to be very well designed. It covered a series of possible assembly concerns right from the start including how to get ahold of them with assemble questions or about missing parts.

When it came to assembly, my Gravity 4000 took less than an hour to put together. That seems to be about average for most comments I read about the unit with more technically challenged people taking slightly longer.

The manual does a good job of explaining safety precautions in both assembly and product use as well as having a detailed picture section in the back which covers proper stretching ideas to help loosen up tight muscles before beginning an incline session.

This incline bed is designed with vinyl safety covers that mount with Velcro over the two pivot and hinge assemblies. Folding the unit for storage is not complicated but because the unit weighs in at 75 lbs. and is very bulky, I recommend finding a location to set your table up and leave it set up.

If you desire to fold and store the unit, simply unhook the Velcro on the covers and push towards the pivot on the center of each locking hinge. This will allow the front legs to fold back. Press the palm activated ankle lock and ratchet it into the closed position and your unit is ready to lay down and store.

Note that there is no safety latch to hold the legs in the closed position so I do not recommend storing this model in an upright position like against a wall. See the photo of my unit permanently set up in an out of the way corner of the room. This is a perfect set-up for the tallest member of my household, 6’-4”. Also note here that the Ironman Gravity 4000 comes with 4 heavy duty rubber nonskid floor stabilizer feet. This feature adds to how solid and secure you will feel when using this model.

compare over 30 inversion tables with weight and height and price in one place

Helpful Ironman Gravity 4000 Inversion Table Video

This video does a good job of showing many of the features I’m detailing here in my review while also showing some basic incline table techniques.

Learn more about the Ironman Gravity 4000


Safety is a top feature with any inversion table and the Ironman Gravity 4000 is certainly no exception. I feel Paradigm Health and Wellness, the creators of the Gravity 4000 have done a good job of addressing all possible safety concerns.

A few of the top safety features that I mentioned above have to include the positive locking hinges on both sides of the legs. These hinges and the entire pivot area are covered with a removable vinyl safety cover.

The heavy duty rubber nonskid feet insure a solid stable base for the table. Extra-long padded safety handles insure a solid grip when you go to upright the inversion table platform.

A three positon pivot hole option located on the pivot arm, which you set up at assembly, allows you to set your unit up to your personal user experience level by adjusting the tables pivot arc swing.

While I do not cover safety health concerns in each review, I do encourage you to read my articles on how your personal health status might impact the decision on whether the use of an incline table is a safe idea for you.


My favorite accessory that comes included with the Ironman Gravity 4000 inversion table has to be the removable padded lumbar support. This support can easily be removed with a Velcro strap and is adjustable to your individual height and best comfort position. It simply slides up and down on a permanently attached vinyl strap which runs up and down the middle of the padded backrest.

ADDED LUMBAR SUPPORT – This is a personal topic. Many people are looking for the added stability they get from a little extra lumbar support which helps maintain the arch in their spine when they go into an inverted position. A removable lumbar support is a premium feature normally only found on more expensive units or as extra cost options.


Much of the information posted on internet selling sites is not accurate for this unit. I’m including three different sets of dimensions for you here that I took directly off my own Ironman Gravity 4000 unit.

The product base dimension is 48”L x29”W with the rubber feet but the pivot bars hang out to the sides making it overall 32” wide. When inverted to a horizontal position, think straight across, a 6’-6” tall person needs 7’ of space for the unit front to back to operate. See my picture above and you will understand why I set my unit up in a corner to clear the head of our tallest family member.

The product dimensions while folded for storage are 80″H x 32″W (pivot bars) x 17″D, but keep in mind it weighs 75 lbs. and doesn’t move around easily.

The product shipping carton dimensions are 51.2”L x 29.2”W x 9.2”H and its shipping weight is 85 lbs.


There seems to be a lot of confusion with warranty information about this product on the internet. Several major selling sites promote different listings including both Paradigm Inc. the manufacturer and Ironman Fitness, the main trademark sponsor of the unit. However, the warranty information printed on my Ironman Gravity 4000 inversion table clearly states on page 20 that Paradigm Inc. warrants to the original purchaser the unit to be free of material and workmanship defects the frame for (1) year and all other parts for (90) days.


  • Ironman Gravity 4000 Inversion table with wide stable steel frame support and 350 lb weight capacityExtra wide tubular coated steel frame
  • Durable powder coated frame
  • 2 ½” multi-layer Memory foam backrest
  • Double stitched water resistant vinyl backrest cover
  • Foam covered extra-long safety handles
  • Rubber nonskid floor stabilizers
  • Full 180 degree inversion to any angle
  • Safe tether style inversion control strap
  • Removable Lumbar pillow included
  • Quick release palm-activated ratcheting ankle release
  • Front and rear comfort cuff rubber ankle supports
  • 3 position inversion control system
  • 4’-9” to 6’-6” height adjustment
  • 350 lb. heavy duty weight rating
  • 1 year full product and labor warranty


  • Unit is heavy and difficult to move around
  • Unit does not lock in place when folded and backrest can swing around
  • Hinges can pinch when folding legs in for storage
  • Strap style inversion limiter not as user friendly as multi position lock systems
  • Possible warranty questions

Ironman Gravity 4000 Inversion Table Price

After doing my research on the Ironman Gravity 4000 inversion table I found the unit to be a very solid value in its price range. It features an ankle lock system normally found on much more expensive models and offers the heaviest frame structure anywhere. I found that the manufacturer lists the unit for about $250 with free shipping but I’ve included 2 links below where you can purchase the unit today for between $210-$230 also with an option for free shipping or in store pickup.


Find today's best price at Amazon

purchase the Ironman Gravity 4000 Inversion Table From Walmart

Ironman Gravity 4000 Inversion Table Reviews and Summery

[rwp-review id=”0″]

Check out all of our Inversion Table Reviews here