Teeter DEX II Review: The Hip-Supported Alternative to an Inversion Table

What the Teeter DEX II Is, and What It Isn’t

The Teeter DEX II is a decompression and core training machine sold alongside Teeter’s inversion tables. The name trips people up, so it is worth being precise before anything else.

Forward Rotation From the Hips

On a table you lie on your back, lock your ankles and tip backward. On the DEX II you stand on a steel base, lean forward over a lap cushion and rotate until the cushion reaches a stop. Teeter describes it as a forward-rotating machine that “supports from the hips in the bent-knee/bent-hip position, which focuses decompression on the lower back,” with “no load on the ankles” (Teeter DEX II product page).

Teeter’s comparison article puts numbers on the posture: your knees and hips stay bent at roughly a 90/90 angle, and your weight “rests on your hips and thighs rather than your ankles” (Teeter, 2026). That is the whole idea of the machine in one sentence.

Not an Inversion Table, and Teeter Says So

Teeter sells both products and has no reason to run either one down, so its own comparison is useful. It says plainly that “neither position is better for everyone” (Teeter, 2026). The table gives a reclined, full-body stretch with an angle you control. The DEX II gives a forward stretch aimed at the lower back, with no ankle pressure and exercise options on the same frame.

DEX, DEX II and DEX II Commercial

If you search for the Teeter DEX, you land on the same machine. Teeter’s current product is the “DEX II Commercial Inversion & Core Training System,” item D12000C (Teeter DEX II product page), and the Amazon listing titled “Teeter DEX” is the same model, labeled DEX II Commercial. Everything on this page refers to that model.

How to Use the Teeter DEX II, by the Manual

The DEX II is simpler to set up than a table, because there is no angle strap or balance point to find. It still has two settings that must be right before you tip forward.

Assembly: Five Steps

The manual assembles the DEX II in five steps, with two wrenches and a screwdriver in the box: feet on the base, legs on the base, the lap pad onto its frame, the lap pad onto the main shaft, and the leg supports onto the lap pad. The last instruction is a test. You stand between the handles, grip the traction handles, rotate the lap pad toward you, lift your legs and bounce lightly, to “test that all fasteners are secure and for smooth and steady rotation of the lap pad” (Teeter DEX II manual).

Fit It to Your Body: Hips to the Top of the Lap Pad

Two adjustments decide whether the DEX II holds you safely. The lap pad height is set so that, standing on the base, your hips line up with its top edge. The leg supports slide in or out so your thighs fit between the rollers and the pad. The manual’s wording is exact: “your hips are aligned with the top edge of the Lap Pad” and your thighs fit “snugly, yet comfortably,” with “no room between the back of your thighs and the leg supports” (Teeter DEX II manual).

Hear, Feel and See Before Every Session

Teeter’s check for the DEX II is a shorter cousin of the one on its tables. The manual tells you to “employ the method of ‘HEAR, FEEL, & SEE’ every time prior to inverting” (Teeter DEX II manual). Hear the height pin and the leg support knob click into place, feel that both are fully engaged and tight, and see that the pad sits at the top of your hips with no gap behind your thighs.

The manual also says that “new users will require the assistance of a spotter possessing the physical strength to lift and return the user to the upright position” (Teeter DEX II manual). That is a stronger requirement than a friend in the room: the spotter has to be able to lift you.

Rotating Forward and Coming Back Up

To go down, you bend one knee, lean forward and take hold of the cane handles, then keep leaning while you lift and bend the other leg. You “continue rotation until the Lap Pad reaches the stop position,” at which point “your body weight will now be supported by your thighs” (Teeter DEX II manual). Your hands can rest on the floor or behind your head.

To come back, you push on the cane handles and walk yourself upright, straightening your legs, then step out once you have your balance. Two warnings apply throughout: keep your knees slightly bent to avoid hyperextension, and stop and return upright if you feel pain or become light-headed or dizzy.

How Long and How Often

Here the manual is silent: it gives no session length and no schedule. Teeter’s general inversion advice is to begin with one to two minutes and put frequency ahead of duration (Teeter, 2014). On the DEX II’s own product page, a Teeter product expert told one owner to “only invert for 1-2 minutes and dismount” (Teeter DEX II product page), though that answer was to someone recovering from a heart procedure.

For falls from inversion tables, the authors of a three-case report advise keeping sessions under one minute (Jung, 2021). Their cases involved ankles giving way on a table, a failure the DEX II’s design avoids, but the underlying advice, less time upside down while you learn, still holds. Our guide on how to use an inversion table sets out the timing advice in full.

DEX II vs an Inversion Table: How to Choose

Both devices use your body weight to pull on the spine. They differ in where they hold you, and that decides who each one suits.

Choose the DEX II If

• Hanging by your ankles is uncomfortable, or your ankles or knees are the weak point.
• You weigh between 300 and 350 lb and want a Teeter product rated for you.
• You want a back extension and ab station as well as a stretch.
• You have floor space to leave it set up.

Choose an Inversion Table If

• You want to start at a shallow angle and build up slowly. On the DEX II there is only the stop position.
• You need to fold it away after each session.
• You want the documented table range, from the Teeter X3 to budget Innova models. Our Teeter inversion table reviews compare every FitSpine model.

If You Weigh More Than 300 lb

Most inversion tables, Teeter’s included, stop at 300 lb. The DEX II is one of the few products with a manufacturer rating of 350 lb, alongside tables such as the Innova ITX1200, and it is the only one of them that doesn’t hang that weight from your ankles. Our page on inversion tables with a 400 lb capacity explains why nothing verified goes higher.

Does the DEX II Work for Back Pain?

This is the question that matters most, and the answer has to separate what Teeter claims from what has been measured.

What Teeter Claims

Teeter says the bent-knee, bent-hip position “focuses decompression on the lower back” (Teeter DEX II product page), and its comparison article says the posture is “designed to place more emphasis on the lower back” (Teeter, 2026). Both are design claims. We found no published trial of the DEX II itself.

What the Evidence Covers

The DEX II works on the same principle as an inversion table. A 2023 paper in Disability and Rehabilitation describes inversion table therapy as “a form of spinal traction,” thought to help because gravity-assisted traction separates the lumbar vertebrae (Kassay, 2023). That is the proposed mechanism.

On outcomes, the broadest review covers traction of every kind. A Cochrane review of 32 trials with 2,762 people found that traction, alone or with other treatment, makes little or no difference to pain, function or return to work in low-back pain, with or without sciatica (Wegner, 2013). That applies to traction in general, not to this machine. Relief is possible; it is not promised. Our page on inversion table benefits covers the smaller studies with more encouraging numbers, our guide to inversion tables for back pain sets them beside the guidelines, and our guide to the best back decompression device sets the DEX II against belts, traction frames and the Teeter P2.

Who Should Not Use It

The DEX II keeps you head-down, so the medical cautions are the same as for a table. The manual says “DO NOT use until approved by a licensed physician” if you have any condition “that may be made more severe by an elevation of blood pressure, intracranial pressure or mechanical stress of the inverted position” (Teeter DEX II manual). Its list names, among others, high blood pressure, glaucoma, retinal detachment, osteoporosis, hernias, pregnancy, obesity, recent surgery and the use of anticoagulants.

The blood pressure concern is measured, not only cautious: in 60 healthy young women, two minutes of inversion raised both systolic and diastolic pressure significantly (Haskvitz, 1986). Our page on who should not use an inversion table sorts every condition by the evidence behind it.

The Verdict on the Teeter DEX II

The Teeter DEX II solves a specific problem well: it takes your ankles and knees out of inversion and holds you at the hips, with a 350 lb rating and Teeter’s five-year warranty behind it. It also gives you a back extension and ab station that a folding table isn’t built to be.

What it gives up is control over the angle and the ability to fold away. If you are new to inversion and want to start shallow, or you need the floor space back after every session, a table such as the Teeter FitSpine LX9 or X3 is the better fit, and our best inversion tables guide compares the rest. If your ankles are the reason you have not tried inversion, the DEX II is the one to look at, after your doctor has cleared you.