The Ab Circle Pro: The Machine That Promised a Six-Pack in 3 Minutes and Delivered a $25 Million FTC Settlement
A knee-destroying medieval torture device marketed as an ab workout, proven to be as effective at building abs as sitting on the couch watching the infomercial
"Lose 10 pounds in 2 weeks!"
That was the Ab Circle Pro's headline promise. Ten pounds. Two weeks. Three minutes a day. The math, if you're wondering, comes out to losing approximately 0.7 pounds per day from three minutes of a swiveling knee exercise, which would require burning approximately 2,500 calories in three minutes, which would require your body to achieve the metabolic rate of a house fire.
But the infomercial didn't mention the math, because the math would have stopped the sale, and stopping the sale would have prevented the Ab Circle Pro from generating the kind of revenue that eventually attracted the FTC's attention and resulted in a settlement between $15 and $25 million.
The Ab Circle Pro is a metal frame with knee pads mounted on a curved track. You kneel on the pads, grip the handles, and swing your lower body from side to side in a motion that the manufacturer described as "targeted core engagement" and that users described as "the thing that destroyed my knees." The motion looks like a person crawling on a pendulum. The sound is metal scraping on metal. The sensation, according to hundreds of reviewers, is your kneecaps filing a formal grievance with the rest of your skeleton.
Three minutes a day. That was the pitch. Three minutes of knee-scraping, side-swiveling, lower-back-compromising movement, after which your abdomen would transform from whatever it was into the before-and-after photos shown in the commercial, which the FTC later determined were achieved through "methods other than use of the Ab Circle Pro" — government language for "these people exercised for real and then pretended the machine did it."
The Vision: Abs in the Time It Takes to Microwave a Burrito
The Ab Circle Pro targeted the most coveted and most lied-about area of the human body: the abdominal muscles. Abs are the fitness industry's golden goose — everyone wants them, few people have them, and the gap between wanting and having creates a market for any device that promises a shortcut.
The shortcut, in this case, was three minutes a day on a machine that moved your hips side to side on a track. The manufacturer claimed this motion engaged the "entire core" and burned fat specifically from the midsection — two claims that independently enraged different branches of exercise science.
First: swiveling your hips on a machine does not meaningfully engage your rectus abdominis (the six-pack muscles). It primarily involves the hip flexors and obliques in a range of motion that produces minimal resistance and therefore minimal muscle activation. You would get more core engagement from sneezing.
Second: the "burning fat from the midsection" claim is spot reduction, which, as we've established in approximately seven other articles on this website, is a myth. Your body does not burn fat from the area you're exercising. If it did, everyone who chews gum would have a chiseled jawline.
The commercial showed dramatically transformed bodies with "results not typical" disclaimers in text so small that reading them qualified as an eye exercise more strenuous than anything the Ab Circle Pro provided.
The Glorious User Experience
Tony from Cleveland, OH — ★☆☆☆☆
"I used the Ab Circle Pro for one session. One. The knee pads are thin plastic on a metal track. Within sixty seconds, my kneecaps felt like they were being exfoliated by a belt sander. I developed bruises on both knees that lasted a week. This is not an ab machine. This is a device for generating knee injuries in a residential setting. I have seen medieval torture illustrations that look more ergonomic. One star."
Brenda from Houston, TX — ★☆☆☆☆
"The infomercial said three minutes a day. I did three minutes a day for four weeks. I did not lose 10 pounds. I did not lose any pounds. What I lost was the cartilage's respect for my decision-making. My knees now make a sound when I go up stairs — a clicking sound, like a warning from my joints that they remember what I did to them. The Ab Circle Pro didn't give me abs. It gave me knees that predict the weather."
“7 pounds per day from three minutes of a swiveling knee exercise, which would require burning approximately 2,500 calories in three minutes, which would require your body to achieve the metabolic rate of a house fire”
Click to TweetSteve from Phoenix, AZ — ★☆☆☆☆
"The before-and-after photos in the commercial showed a man going from a beer belly to a six-pack using 'just the Ab Circle Pro.' The FTC later proved these photos were achieved through methods other than the Ab Circle Pro, which is a polite way of saying the guy in the photos worked out for real and then stood next to this machine for a photo. He lied with his abs. His abs are false witnesses. One star."
Rachel from Portland, OR — ★☆☆☆☆
"I kept the Ab Circle Pro under my bed for easy access. This meant I had to kneel down to pull it out, get onto the knee pads, do three minutes, get off, and push it back under the bed. The kneeling to retrieve and store the machine was a more complete exercise than using the machine itself. My bedroom floor got an ab workout every time I slid this thing in and out. One star."
The Truth: $25 Million Worth of "Results Not Typical"
The FTC's case against the Ab Circle Pro was filed in 2012 and alleged that the company made "false and unsubstantiated claims" about the product's effectiveness. Specifically:
- The claim that users could "lose 10 pounds in 2 weeks" was unsupported by evidence.
- The claim that the Ab Circle Pro could target abdominal fat was unsupported by evidence.
- The before-and-after testimonials were misleading because participants used "methods other than the Ab Circle Pro" to achieve their results.
The company — Direct Entertainment Media Group and the product's marketer — settled for between $15 and $25 million in consumer refunds. This was one of the largest FTC settlements in fitness product history and sent a clear message: you can't sell a machine that doesn't work using photos of people who didn't use the machine.
The Ab Circle Pro's physical damage extended beyond wallets. Orthopedic complaints about the device are documented across reviews and consumer forums. The knee pad design places the user's body weight on thin padding over a metal rail, and the side-to-side motion creates shear forces on the knee joint that physical therapists describe with words like "inadvisable" and "why would you do this." Users who had pre-existing knee issues reported significant aggravation. Users who didn't have pre-existing knee issues reported developing them.
The Ab Circle Pro is no longer widely available, though refurbished units occasionally surface on eBay like cursed artifacts that refuse to stay buried. Its legacy is a line item on the FTC's website and a generation of consumers who learned that if a fitness product promises results from three minutes a day, the results are going to be a refund check and sore knees.
The Verdict
The Ab Circle Pro is the fitness industry's most efficient machine — not for building abs, but for converting consumer hope into FTC settlements. It promised a six-pack in three minutes and delivered a class-action in three years. It destroyed knees faster than it built core strength. And its before-and-after photos were as fictional as the premise they promoted.
If you want abs, here is the unsexy truth: eat at a caloric deficit, perform compound exercises, train your core with progressive resistance, and give it months, not minutes. Nobody gets a six-pack in two weeks. Nobody gets a six-pack from three minutes on a swiveling knee track. But millions of people bought the promise, and the Ab Circle Pro cashed every check.
We rate it 1 out of 5 functional joints.
If you want to build core strength without destroying your knees or funding an FTC investigation, see our alternatives below.
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✅What to Buy Instead
Ab Roller Wheel
Simple, effective ab roller that actually engages your core through actual resistance for under $15. No knee destruction. No FTC settlement.
Plank Timer App (Free)
Planks are free, proven effective, and won't destroy your knees. The world's best ab exercise costs $0 and requires only a floor.
Pull-Up Bar (Doorframe)
$30 for the most effective upper-body and core tool available. Hanging leg raises build real abs through real effort. No swiveling required.
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