Ironman Gravity 4000 Review

Back pain is a common issue. In fact, it’s so common that 80% of adults will experience back pain at some time during their lives. Back pain is one of the leading causes of work absenteeism and costs the economy billions of dollars in lost productivity and treatment.

There are lots of reasons back pain is such a prevalent issue. It can be the result of accidents and sports injuries, is linked to poor posture, sedentarism, and spending long periods seated, and is often made worse by being overweight or pregnant.

Thankfully, a lot of back pain is mild and short-lived. A minor muscle strain can leave you feeling sore and stiff for a few days but then heals by itself. In contrast, other forms of back pain are much longer-lasting and can be truly debilitating. You can only understand how miserable back pain is when you experience it for yourself.

Pain medication can help, as can treatments like cryotherapy, massage, ultrasound, and infrared. But, even with the proper medical care, some people need surgery to alleviate their back problems.

There is another option – inversion therapy. Inversion tables like the Ironman Gravity 4000 suspend you from your ankles to stretch and decompress your spine and the associated muscles, relieving pain and tension in the process.

Research suggests that inversion tables can alleviate several types of back pain, including bulging and herniated discs, sciatica, and muscle spasms. In this article, we review the Ironman Gravity 4000 inversion table so you can see if it’s something that might help make your back pain more manageable.

Ironman Gravity 4000 Review

IRONMAN Gravity 4000

as of July 24, 2024 9:39 am

Key Features

The Ironman Gravity 4000 inversion table is a premium product made by the well-known sports, fitness, and leisure company Ironman. Ironman is a name usually associated with the sport of triathlon, but they’ve branched out into the general health and fitness market.

The key features of the Ironman Gravity 4000 inversion table are:

  • Extended memory foam backrest
  • Steel frame with powder-coated finish
  • Removable lumbar pillow
  • Air-soft ergonomic ankle locking system
  • Extra-long safety/tilting handles
  • Non-slip feet for increased stability
  • Foldable for storage
  • Full 180-degree inversion

Dimensions and Specifications

The Ironman Gravity 4000 inversion table is made to cater to a wide range of users – both in height and weight. As such, this is quite a large, robust product designed to withstand heavy use. It’s certainly not a compact inversion table, so make sure you’ve got room to accommodate it.

The dimensions and specifications for the Ironman Gravity 4000 inversion table are:

  • Height – 80 inches
  • Width – 26 inches
  • Weight – 85 lbs.
  • Weight capacity – 320 lbs.
  • Height range – 4’ 6” to 6’ 6”

Inversion Table Design

IRONMAN Gravity 4000

as of July 24, 2024 9:39 am

The Ironman Gravity 4000 inversion table is designed to inspire confidence. The wide frame is solid and stable and doesn’t wobble during use, and the ankle locking system is easy to use and feels very secure. But, where the Ironman Gravity 4000 inversion table really shines is comfort. Where a lot of inversion tables have a firm or even hard backrests, the Ironman Gravity 4000 inversion table is covered with 2 ½-inch think memory foam, making it a pleasure to lie on.

The removable/adjustable padded lumbar pillow adds to your comfort, as does the air-soft padded ankle locking system. There are large handles to control your angle of inversion, so there is no need to worry about being unable to get back upright.

The frame itself is made from steel and powder coated to make it scratch-resistant and ensure it stays looking good for many years to come. It’s also foldable, so you can put the Ironman Gravity 4000 inversion table away after use.

This is a definite advantage as this IS a big inversion table, and leaving it out could be an issue for apartment dwellers. However, the 85 lbs. weight means this may not be as easy as it sounds. All in all, the Ironman Gravity 4000 inversion table is a very well-designed product that’s easy to use and is definitely built to last.

Ease of Use

The Ironman Gravity 4000 inversion table has several features that make it very easy to use.

To get started, stand on the large footplates and push the ankle locking mechanism into place. This is a one-handed operation; you just press it with your palm, and it clicks and locks securely. Then, when you are ready to invert, just lean back and use the large handrails to tilt the table as far as you want.

You can limit the degree of inversion by adjusting a resistance band on the back of the machine or just control it with your arms. With other inversion tables, going inverted means raising and lowering your arms. This takes practice and can feel disconcerting. Using the handrails feels much more controlled.

The memory foam backrest is very comfortable, so you can lie back and relax without a care in the world. The air-soft ankle pads are also very comfortable, which is good news if you want to fully invert the table.

When you are ready, just gently pull on the handles to re-right yourself. The ankle locking system has a quick-release mechanism, which is also operable with one hand. In short, the Ironman Gravity 4000 inversion table is extremely easy to use. That ease of use means it’s an ideal table for nervous and novice inverters. It’s also supremely comfortable.


IRONMAN Gravity 4000

as of July 24, 2024 9:39 am

Strong, stable, comfortable, made to last, and easy to use, there is a lot to love about the Ironman Gravity 4000 inversion table. However, there are a few drawbacks to consider too:

Weight – at 85 lbs., the Ironman Gravity 4000 inversion table is no lightweight. The weight is immaterial during use, but it may become an issue if you want to fold it up and put it away for storage. This inversion table is best left in-situ and is not really portable.

Less decompression – according to Ironman, you are meant to keep your hands on the handrails throughout your inversion. While this may inspire confidence, it reduces decompression compared to letting your arms hang above your head. Some inversion tables even have overhead handles to pull on to increase spinal stretching.

Relatively short warranty – some competing inversion tables have a five-year parts and labor warranty. The Ironman Gravity 4000 inversion table’s warranty is significantly shorter.


The Ironman Gravity 4000 inversion table comes flat-packed and disassembled. There are lots of parts, but they come together relatively easily.

The instructions are clear, and all the necessary tools are provided. Users report that assembly takes 30-60 minutes. However, because of its 85 lbs. weight, putting the Ironman Gravity 4000 inversion table together is a job best suited to two people, although it can be done alone.


Despite its high-quality construction and the well-known manufacturer, the Ironman Gravity 4000 inversion table only comes with a 12-month parts and labor warranty. Granted, there isn’t much to go wrong with this product, but some competing companies offer a more extended warranty – up to five years in some cases.

Bottom Line

If you have chronic back pain, inversion therapy can help. Inversion tables like the Ironman Gravity 4000 make hanging upside down and decompressing your spine easy, safe, and comfortable, so there is nothing to stop you from doing it every day.

There are lots of inversion tables to choose from, but the Ironman Gravity 4000 inversion table is highly recommended because it’s so easy to use. It has several features designed to increase safety and security, making it ideal for nervous or novice users. After all, hanging for your ankles for the first time can be somewhat disconcerting…

The Ironman Gravity 4000 inversion table is very well-made and should provide many years of reliable use. The only thing lacking is a lengthy warranty, but the reality is, it’s built to last, and there are very few things that can go wrong with it.

So, if you are looking for a comfortable and easy-to-use inversion table and don’t need it to be especially light or portable, the Ironman Gravity 4000 inversion table would be an excellent choice.

IRONMAN Gravity 4000

as of July 24, 2024 9:39 am

Patrick Dale is an ex-British Royal Marine and owner and lecturer for a fitness qualifications company. In addition to training prospective personal trainers, Patrick has also authored three fitness and exercise books, dozens of e-books, thousands of articles, and several fitness videos.

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