Ironman ATIS 4000 Inversion Table

The IronMan ATIS (AB Inversion Training System) 4000 provides the additional benefit of AB training while inverting. At the same time inverting will provide effective back stretching and relaxation. The ATIS will lock at 10 different inverting angles. The ATIS can be locked for mounting and dismounting. It is constructed of extra wide oval tubing for extra weight support. The 2 1/2″ foam backrest with 1″ of Memory Foam provides extra an extra comfortable backrest with an extended head rest for head support. The ATIS can support up to 320 lbs and up to 6’6″ of height. Inverting hand grips (patent pending) provides maximum stretching while inverting. “Smart Gear” (patent pending) locks the table in different inverting positions, one of which is a full 180 degrees. “Ratchet Gear” locks the ankles in place easily and comfortably. “Super Side Holder” can store cell phones, eye glasses, wallets, coings and other articles while inverting. Removable lumbar support pillow provides additional lower back support. An extra large foot platform provides easy on and off the inversion table.Whether you want to reduce back stress or fatigue, stimulate your blood circulation, or work your abs, the Ironman ATIS 4000 inversion table makes a great household accessory. The inversion table contributes to your body’s overall health by optimizing lumbar traction, thereby relieving pressure on your vertebrae discs and ligaments. And when your back starts to relax, the rest of your body follows. The table can also help with such areas as increasing body flexibility for improved athletic performance, reducing the effects of aging due to gravity, and relieving lower backaches due to sitting or standing.

However, the ATIS 4000 differs from other inversion tables in a couple of crucial ways. First, by virtue of its ab and core training system, the table isolates the abdominals far more effectively than bench training, letting you build and strengthen your abs daily with just a few minutes of work. And second, the table offers 10 different inversion locking angles, letting you find the perfect position for your body type and symptoms.

The ATIS 4000 is outfitted with an extra-wide oval tubing steel frame and a heavy 2-1/2-inch nylon backrest, with 1 inch of memory foam and an extended head rest combining to provide an ultra-comfortable platform. More importantly, the inversion system is a breeze to use: once you rest your body against the nylon backrest and slip your feet into the ergonomically molded ankle cushions, simply reach your arms over your head. As your arms go up, your body gradually inverts to the preset angle. The only inputs are your energy and gravity itself.

Users will also appreciate the inverted hand grips, which guarantee a full stretch while inverted, and the extra-long safety handles, which provide an easy return to an upright position. Other details include a height-adjustable frame up to 6 feet 6 inches; support for up to 320 pounds; an extra-large foot platform for easy on and off; a scratch-resistant powder-coated finish; a removable lumbar support pillow for additional lower back support; and a side holder for cell phones, eyeglasses, wallets, coins, watches, and other small items. The ATIS 4000 measures 35 by 62 by 58 inches (W x H x D) and weighs 111 pounds.

About Ironman Fitness
Engineered for endurance, strength, speed, stamina, and performance, Ironman Fitness is continually striving to define the fitness industry. Their collection features top-of-the-line treadmills, stationary cycles, elliptical trainers, weight benches, and single- and multi-station exercise machines. The features on Ironman’s fitness equipment introduced over the years have become the standards of today. With superior components, multiple patents, and award-winning products, Ironman’s fitness products have consistently exceeded the expectation of customers and are the heart of a true champion.

Compare these Ironman Inversion Tables

Gravity 1000
Gravity 2000
Gravity 4000
ATIS 1000
ATIS 3500
ATIS 4000
XT 490
LXT 850
Backrest Nylon Vinyl Covered Foam Vinyl Covered Foam Nylon Vinyl Covered Foam Vinyl Covered Foam Nylon Vinyl Covered Foam
Lumbar Support No No Yes No No No No Yes
Steel Frame Standard Standard Heavy-Duty Extra-Wide Extra-Wide Extra-Wide Standard Heavy-Duty
Weight Capacity (in pounds) 300 300 350 325 325 325 300 325
10-Level Locking System Tether Strap Tether Strap Tether Strap Smart Gear System Smart Gear System Smart Gear System Tether Strap Smart Gear System
Height Adjustment Up to 6’6″ Up to 6’6″ Up to 6’6″ Up to 6’6″ Up to 6’6″ Up to 6’6″ Up to 6’6″ Up to 6’6″
Ankle Locking System Spring Loaded Spring Loaded Ratchet System Scale Locking System Ratchet System Ratchet System Spring Loaded Ratchet System
Inverting Stretch Hand Grips No No No No Yes Yes No No
Folds for Storage Yes Yes Yes Yes No No Yes Yes
Product Weight (in pounds) 46 75 82 76 111 111 57 82
Non-Skid Foot Stabilizers Yes Yes Yes Yes Yes Yes Yes Yes
Ab Core Training Capability No No No Yes Yes Yes No Yes
Total Inversion Angle 90 90 90 90 90 90 90 90

$ 311.54

Customer Reviews

170 of 183 people found the following review helpful
1.0 out of 5 stars
Mostly good, but the horrible locking system makes this junk., September 22, 2009
Redneck (Tejas, USA) – See all my reviews

Verified Purchase(What’s this?)
This review is from: Ironman ATIS 4000 Inversion Table (Sports)

*Update to review at bottom*

Let me start by saying that this is a product review, not a review of inversion therapy. I’m disappointed so many people gave inversion tables 5 stars when they were rating inversion therapy rather than the inversion table. I would advise anyone to read these reviews carefully. I would rate inversion therapy as a 5 – do it yourself traction is great for your back. It can help older people with compressed disks to find pain relief and help younger people from developing such problems as quickly. For more advanced degenerative spinal disease you should definitely seek medical advice before purchasing such a system.

OK that said, I just received an Ironman ATIS 4000 Inversion Table and put it together last night, which took about an hour and a half. It would have taken less time if I didn’t have two little helpers constantly in my way. The only part missing was a metal washer, which (being a guy) only took a trip to the garage to address. Still, it’s very disappointing when assembly hardware is missing. Assembly instructions were clear, all tools were included and it was easy to assemble, but there are no usage instructions. I hung upside down (180 degree inversion) after assembly like you’re not supposed to do, had the blood rush to my head, got immediately congested, and had a subluxated vertebra in my lower back slowly and painfully slide itself into proper spinal alignment. Ah, I haven’t felt this good in weeks! The table is very heavy duty, and I was very pleasantly surprised with the quality of the back board. It is of the minimum base quality I would expect to see in a gym – not the highest quality, but still very solid and able to last a lifetime of home use.

There are a number of problems, however. First, The Amazon ad for this model states the product includes “a removable lumbar support pillow for additional lower back support” – there is no such lumbar support – the sloppy description is incorrect. Not a huge issue, but I disdain false advertising. Second, when fully inverted and hanging completely by the ankles, your feet/ankles will be uncomfortable. The very well-padded ankle straps are not completely pain-free, as the moulding-line cuts into the top of your feet. Given the pain in my back, a little momentary discomfort in the ankles is a very small price to pay, but if you’re considering purchasing an inversion table know it exists if you’re not pain tolerant (probably regardless of brand/model). Third, and most importantly, the table does not lock. It is advertised as having “10 different inversion locking angles”, but the locking mechanism is cheap, it sticks, works sometimes and not others, and I refuse to ever use it again. Ironman, whoever designed your locking system should be fired. I locked myself in at about 160 degrees from vertical and then the mechanism stuck. If I freed my feet I would slide off the table, head hitting the metal stand. Fortunately after much jiggling I got the mechanism unstuck. I am certainly not an expert on inversion traction but I would think being stuck inverted for a long span of time could be potentially dangerous. This completely undermines the units ability to be used for inverted sit-ups where locking is a necessity. You can only use it to hang upside down on, and have to haul yourself up by the handles (weight shifts when you hang by your ankles and your weight is no longer balanced, but shifts towards your head). Note that some of the other Ironman inversion tables have this same faulty locking mechanism design – and this is supposed to be their best design!

This table comes under the category of great idea, very well made otherwise, but a chain is only as strong as it’s weakest link and the “Smart Gear System” is a complete piece of garbage. I’m going to look at the locking mechanism more this evening; if it is not something I can fix myself, I will return the unit. This is one reason I buy from Amazon – they pay for return shipping when they sell faulty equipment like the Ironman ATIS 4000 Inversion Table. If I spend 0 on a piece of equipment and it is not what is advertised and arrives broken, I should not have to pay to return junk.


I have decided to keep the table. The locking mechanism is completely broken, but it’s in the unlocked state, so I can invert without any issue. I am unable to do inverted sit-ups, but oh well. It is not worth my time & effort to disassemble and repack this monstrosity for shipment. It does work well for inversion therapy, which is the main reason I purchased it. So yes, I’m keeping it, but if I knew this is what I would get for 0 I would have bought from another more reputable manufacturer.

I strongly advise looking for a better manufacturer than Ironman. I noticed on negative reviews, there is always one “not helpful” vote on the review – from the seller or…

Read more

Help other customers find the most helpful reviews 

Was this review helpful to you? Yes

39 of 42 people found the following review helpful
5.0 out of 5 stars
Snap, Crackle, Pop, July 6, 2008
Verified Purchase(What’s this?)
This review is from: Ironman ATIS 4000 Inversion Table (Sports)
The slogan from Rice Krispy, “Snap, Crackle, Pop,” is fitting for inversion tables, as thats the sound your joints make when being inverted… at least it was in my case.

Prior to purchasing this Ironman ATIS 4000 Inversion Table, I had no experience with inversion tables. I knew what it did, but never tried it. All I knew that it relieved back pain. As you’ll notice here on Amazon, there are quite a few Inversion Tables to choose from. Though there were no reviews of this unit when I purchased it, I decided to give this one a shot.

- Solid construction
- Lumbar pillow (removable)
- Extended head rest (others that I’ve seen don’t seem to extend that far)
- Long hand grips
- “Ratchet Gear” lock to lock ankles into place
- Easily adjustable for different heights

- Heavy, at 111 lbs
- Does not fold up for storage
- The greater the angle of inversion, the ankle holds do get a little uncomfortable, but certainly bearable.
- After some use, the screws need to be re-tightened.
- The ratchet lock is difficult to unlock at times. Requires you push in towards your legs before pushing away.

By far the one feature that sold me was the “Ratchet Gear” lock. I do not know how other tables lock your ankle into place, but this one is simple to use. I have trouble bending down too far, but am able to utilize this easily. Simply step onto the platform, push down the ratchet lock and thats it. To get out, press down firmly, push towards your leg, then push out.

I have had this table for about a month now, and use it daily. When I get on it, within seconds of inverting, I can already hear and feel my joints relaxing and popping.

When setting this unit up, I would recommend having at least two people, as it’ll make things a lot easier.

The unit is not manufactured by IRONMAN. This company merely uses the name IRONMAN.

On a unrelated note, if you do decide to order this unit, or any inversion table from Amazon, be sure to follow up with Amazon, and their shipping carrier, about the shipping date/time. The shipping date came and went without even a call to schedule a delivery. The tracking information Amazon provided me did not match anything the freight carrier had. After several calls back and forth, they sent out another unit, which arrived on time.


Help other customers find the most helpful reviews 

Was this review helpful to you? Yes

18 of 20 people found the following review helpful
5.0 out of 5 stars
Great Product, July 31, 2008
DY (Maryland) – See all my reviews

This review is from: Ironman ATIS 4000 Inversion Table (Sports)
The Ironman ATIS 4000 was delivered yesterday (a week earlier than the projected delivery date). My wife and I put it together in an hour. I would recommend having access to a metric socket during the assembly. We proceeded to put it through its paces and we immediately felt relief in our lower backs and shoulder areas. My wife did not take any Advils today, which she attributes to the utilization of this machine. Before you purchase the Ironman be aware that this device takes up the space equivalent of a treadmill and you cannot fold it up and put it under a sofa. I would like to see some recommended exercises and possibly a demo DVD included so that I could more effectively harness the table’s advantages. Overall I think that the quality of construction gives the user a sense of comfort and safety, that lesser machines might not afford the user.


Help other customers find the most helpful reviews 

Was this review helpful to you? Yes

Share your thoughts with other customers:

 See all 73 customer reviews…