CLOSE

7 Highly Questionable Vintage Exercise Devices

Society’s knowledge of exercise and fitness has grown exponentially since the early 20th century, when strongmen boasted of eating 24 eggs and three pounds of bacon for breakfast. Then again, the enduring popularity of infomercial abdominal devices indicates we’re still prone to using dubious pieces of equipment if installment payments are offered. Here are a few contraptions that, while well-intentioned, may have been more hazardous than helpful to one’s health.     

1. The Relax-A-cizor

The best fitness machine imaginable would involve seeing results while putting in absolutely no effort whatsoever. That was the primary selling point of the Relax-A-cizor [sic], an electrical stimulation device fitted around the stomach that promised to melt away belly fat. “It’s effortless!” promised print ads. “You REST!” (And for the easily confused: “Not a bicycle or chair.”)

While reducing adipose tissue in the absence of exertion was tempting, the U.S. government was less enthused: after being on the market for decades, Relaxacizor, Inc. suffered a permanent injunction in federal court from selling any more of the units. In the 1970 finding, Judge William Gray admonished that the device’s unpredictable currents (delivered via damp electrodes) were unsafe and could conceivably cause “headache, hernia…loss of consciousness…diarrhea…” and that it “may be capable of causing a miscarriage.” More than 400,000 units were sold before Gray halted sales.   

2. The Molby Hammock

Less an exercise device than a human rotisserie, the Molby Hammock assured users it would “make your spine young!” Hung by the feet and neck, purchasers would enjoy relaxed spinal nerves with no nervous system “tension.” Sold throughout the 1920s, the Molby seemingly pre-dated the concept of tort lawsuits and mass litigation—though it may have fueled a rise in chiropractors.  

3. Velcro Home Jogger  

A gift from clever Japanese minds circa 1995, the Velcro Home Jogger was a stepper-style platform made of Velcro that “caught” the soles of its matching sneakers, creating resistance as the user tried to extricate their feet from the adhesion of the two surfaces.

4. Twist ‘N Tone

Perched atop this giant, adult-supporting turntable, 1970s fitness enthusiasts could contort their core to stimulate—well, something. Dynamic Classics, the company that produced this and other equipment, was unclear on what exactly the Twist ‘N Tone could accomplish. Reporter Landon Hall, who purchased one on eBay for an Orange County Register article, described it as “two pieces of plastic, with one rotating on top of the other. It looks like a TV dinner tray without legs.” A personal trainer that Hall consulted asserted that anything the device purported to do could be done standing on a floor—for free.

5. Leather ‘N Lead Bracelets

Bodybuilding icon Joe Weider of Muscle and Fitness fame was in a perfect position to monetize the popularity of Arnold Schwarzenegger in the 1970s.  As Weider had helped with Arnold’s training and gotten him a role in his first movie (by claiming that Arnold was a German Shakespearean actor), perhaps Arnold felt a debt of gratitude when agreeing to endorse his lead-stuffed bracelets. Promising to turn “every arm movement into an instant arm builder,” the gaudy fashion accessory sold as a pair for $14.95. If your biceps didn’t “ooze 100% more power…and look ferocious,” the ad copy promised, you could return them for a full refund. 

6. The Gymno Frame

A kind of stopgap for aspiring gymnasts who were wary of breaking their necks, the ‘30s-era Gymno Frame looks like something you’d find in the traction ward of a hospital—where users might conceivably end up. The Frame assisted in cartwheels, somersaults, and other head-over-heels maneuvers. Photographed in British football clubs, the contraption never appeared to make it stateside.  

7. The Health Jolting Chair

Sold in the 1880s and free of any pesky laws governing medical claims, the spring-equipped Jolting Chair assured prospective buyers that it “preserves health, cures diseases, and prolongs life.” Curative effects include relief from “constipation…melancholia...” and anything resulting from “lack of nerve force.” A lever on the chair would seem to indicate some kind of gyration or movement, suitable even for those “crippled from paralysis.” 

Sadly, these claims could not be substantiated. The Jolting Chair was one of the many devices that led to the Federal Trade Commission finding their own nerve force and forcing advertisers to back up their claims beginning in 1938.

nextArticle.image_alt|e
Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock
arrow
science
Head Case: What the Only Soft Tissue Dodo Head in Existence Is Teaching Scientists About These Extinct Birds
Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock
Dodo: © Oxford University, Oxford University Museum of Natural History. Background: iStock

Of all the recently extinct animals, none seems to excite the imagination quite like the dodo—a fact Mark Carnall has experienced firsthand. As one of two Life Collections Managers at the UK's Oxford University Museum of Natural History, he’s responsible for nearly 150,000 specimens, “basically all the dead animals excluding insects and fossils,” he tells Mental Floss via email. And that includes the only known soft tissue dodo head in existence.

“In the two and a bit years that I’ve been here, there’s been a steady flow of queries about the dodo from researchers, artists, the public, and the media,” he says. “This is the third interview about the dodo this week! It’s definitely one of the most popular specimens I look after.”

The dodo, or Raphus cucullatus, lived only on the island of Mauritius (and surrounding islets) in the Indian Ocean. First described by Vice Admiral Wybrand van Warwijck in 1598, it was extinct less than 100 years later (sailors' tales of the bird, coupled with its rapid extinction, made many doubt that the dodo was a real creature). Historians still debate the extent that humans ate them, but the flightless birds were easy prey for the predators, including rats and pigs, that sailors introduced to the isolated island of Mauritius. Because the dodo went extinct in the 1600s (the actual date is still widely debated), museum specimens are very, very rare. In fact, with the exception of subfossils—the dark skeletons on display at many museums—there are only three other known specimens, according to Carnall, “and one of those is missing.” (The fully feathered dodos you might have seen in museums? They're models, not actual zoological specimens.)

A man standing with a Dodo skeleton and a reconstructed model of the extinct bird
A subfossil (bone that has not been fully fossilized) Dodo skeleton and a reconstructed model of the extinct bird in a museum in Wales circa 1938.
Becker, Fox Photos/Getty Images

Since its extinction was confirmed in the 1800s, Raphus cucullatus has been an object of fascination: It’s been painted and drawn, written about and scientifically studied, and unfairly become synonymous with stupidity. Even now, more than 300 years since the last dodo walked the Earth, there’s still so much we don’t know about the bird—and Oxford’s specimen might be our greatest opportunity to unlock the mysteries surrounding how it behaved, how it lived, how it evolved, and how it died.

 
 

To put into context how old the dodo head is, consider this: From the rule of Oliver Cromwell to the reign of Queen Elizabeth II, it has been around—and it’s likely even older than that. Initially an entire bird (how exactly it was preserved is unclear), the specimen belonged to Elias Ashmole, who used his collections to found Oxford’s Ashmolean Museum in 1677. Before that, it belonged to John Tradescant the Elder and his son; a description of the collection from 1656 notes the specimen as “Dodar, from the Island Mauritius; it is not able to flie being so big.”

And that’s where the dodo’s provenance ends—beyond that, no one knows where or when the specimen came from. “Where the Tradescants got the dodo from has been the subject of some speculation,” Carnall says. “A number of live animals were brought back from Mauritius, but it’s not clear if this is one of [those animals].”

Initially, the specimen was just another one of many in the museum’s collections, and in 1755, most of the body was disposed of because of rot. But in the 19th century, when the extinction of the dodo was confirmed, there was suddenly renewed interest in what remained. Carnall writes on the museum’s blog that John Duncan, then the Keeper of the Ashmolean Museum, had a number of casts of the head made, which were sent to scientists and institutions like the British Museum and Royal College of Surgeons. Today, those casts—and casts of those casts—can be found around the world. (Carnall is actively trying to track them all down.)

The Oxford University Dodo head with scoleric bone and the skin on one side removed.
The Oxford University Dodo head with skin and sclerotic ring.
© Oxford University, Oxford University Museum of Natural History // Used with permission

In the 1840s, Sir Henry Acland, a doctor and teacher, dissected one side of the head to expose its skeleton, leaving the skin attached on the other side, for a book about the bird by Alexander Gordon Melville and H.E. Strickland called The dodo and its kindred; or, The history, affinities, and osteology of the dodo, solitaire, and other extinct birds of the islands Mauritius, Rodriguez and Bourbon. Published in 1848, “[It] brought together all the known accounts and depictions of the dodo,” Carnall says. The Dodo and its kindred further raised the dodo’s profile, and may have been what spurred schoolteacher George Clark to take a team to Mauritius, where they found the subfossil dodo remains that can be seen in many museums today.

Melville and Strickland described Oxford’s specimen—which they believed to be female—as being “in tolerable preservation ... The eyes still remain dried within the sockets, but the corneous extremity of the beak has perished, so that it scarcely exhibits that strongly hooked termination so conspicuous in all the original portraits. The deep transverse grooves are also visible, though less developed than in the paintings.”

Today, the specimen includes the head as well as the sclerotic ring (a bony feature found in the eyes of birds and lizards), a feather (which is mounted on a microscope slide), tissue samples, the foot skeleton, and scales from the foot. “Considering it’s been on display in collections and museums, pest eaten, dissected, sampled and handled by scientists for over 350 years,” Carnall says, “it’s in surprisingly good condition.”

 
 

There’s still much we don’t know about the dodo, and therefore a lot to learn. As the only soft tissue of a dodo known to exist, the head has been studied for centuries, and not always in ways that we would approve of today. “There was quite some consideration about dissecting the skin off of the head by Sir Henry Acland,” Carnall says. “Sadly there have also been some questionable permissions given, such as when [Melville] soaked the head in water to manipulate the skin and feel the bony structure. Excessive handling over the years has no doubt added to the wear of the specimen.”

Today, scientists who want to examine the head have to follow a standard protocol. “The first step is to get in touch with the museum with details about access requirements ... We deal with enquiries about our collections every single day,” Carnall says. “Depending on the study required, we try to mitigate damage and risk to specimens. For destructive sampling—where a tissue sample or bone sample is needed to be removed from the specimen and then destroyed for analysis—we weigh up the potential importance of the research and how it will be shared with the wider community.”

In other words: Do the potential scientific gains outweigh the risk to the specimen? “This,” Carnall says, “can be a tough decision to make.”

The head, which has been examined by evolutionary biologist Beth Shapiro and extinction expert Samuel Turvey as well as dodo experts Julian Hume and Jolyon Parish, has been key in many recent discoveries about the bird. “[It] has been used to understand what the dodo would have looked like, what it may have eaten, where it fits in with the bird evolutionary tree, island biogeography and of course, extinction,” Carnall says. In 2011, scientists took measurements from dodo remains—including the Oxford specimen—and revised the size of the bird from the iconic 50 pounder seen in paintings to an animal “similar to that of a large wild turkey.” DNA taken from specimen’s leg bone has shed light on how the dodo came to Mauritius and how it was related to other dodo-like birds on neighboring islands [PDF]. That DNA also revealed that the dodo’s closest living relative is the Nicobar pigeon [PDF].

A nicobar pigeon perched on a bowl of food.
A nicobar pigeon.
iStock

Even with those questions answered, there are a million more that scientists would like to answer about the dodo. “Were there other species—plants, parasites—that depended on the dodo?” Carnall asks. “What was the soft tissue like? ... How and when did the dodo and the related and also extinct Rodrigues solitaire colonize the Mascarene Islands? What were their brains like?”

 
 

Though it’s a rare specimen, and priceless by scientific standards, the dodo head is, in many ways, just like all the rest of the specimens in the museum’s collections. It’s stored in a standard archival quality box with acid-free tissue paper that’s changed regularly. (The box is getting upgraded to something that Carnall says is “slightly schmancier” because “it gets quite a bit of use, more so than the rest of the collection.”) “As for the specific storage, we store it in vault 249 and obviously turn the lasers off during the day,” Carnall jokes. “The passcode for the vault safe is 1234ABCD …”

According to Carnall, even though there are many scientific and cultural reasons why the dodo head is considered important, to him, it isn’t necessarily more important than any of the other 149,999 specimens he’s responsible for.

“Full disclosure: All museum specimens are equally important to collections managers,” he says. “It is a huge honor and a privilege to be responsible for this one particular specimen, but each and every specimen in the collection also has the power to contribute towards our knowledge of the natural world ... This week I was teaching about a species of Greek woodlouse and the molluscs of Oxfordshire. We know next to nothing about these animals—where they live, what they eat, the threats to them, and the predators that rely on them. The same is true of most living species, sadly. But on the upside, there’s so much work to be done!”

nextArticle.image_alt|e
iStock
arrow
Health
How Promoting Handwashing Got One 19th Century Doctor Institutionalized
iStock
iStock

Regardless of how often we actually do it, it's common knowledge that washing our hands before eating, after coughing, and after using the bathroom is good for us. But the connection between handwashing and health wasn't always accepted as fact. As Danielle Bainbridge explains in the PBS web series Origin of Everything, the first doctor to campaign for cleanliness in hospitals was not only shunned by other medical professionals, but ended up in an insane asylum.

Prior to the 19th century, handwashing primarily existed in the context of religious ceremonies and practices. It plays a role in Christianity, Islam, Judaism, Sikhism, and Buddhism in some form or another. But washing up to stop the spread of disease wasn't really a thing for most of history. People weren't aware of germs, so instead of microbes, they blamed illness on everything from demons to bad air.

Then, in 1846, a Hungarian doctor named Ignaz Semmelweis made a breakthrough observation. He noticed that women giving birth with the help of midwives were less likely to die than those treated by doctors. He determined that because doctors were also performing autopsies on victims of puerperal fever (a bacterial infection also known as childbed fever), they were somehow spreading the disease to their other patients. Semmelweis started promoting handwashing and instrument sterilization in his clinic, and the spread of puerperal fever dropped as a result.

Despite the evidence to support his theory, his peers in the medical community weren't keen on the idea of blaming patient deaths on doctors. Partly due to his commitment to the controversial theory, Semmelweis was shunned from his field. He suffered a mental breakdown and ended up in a mental hospital, where he died a few weeks later.

Germ theory did eventually become more mainstream as the century progressed, and washing hands as a way to kill unseen pathogens started gaining popularity. Even so, it wasn't until the 1980s that the CDC released the first official guidelines instructing people on best handwashing practices.

If this story suddenly has you in the mood to practice good hygiene, here's the best way to wash your hands, according to experts.

[h/t Origin of Everything]

SECTIONS

arrow
LIVE SMARTER
More from mental floss studios