(Updated) Sketchers Shape Up Shoes and Other Negative Heal Footwear
/Via: Medicalinsurance.org
What Are Negative Heel Shoes?
You may have noticed a new trend stepping onto the streets: negative heel shoes. They're bulky, moon-boot-like sneakers that resemble orthopedic footwear—and they’re making waves in both fitness circles and popular media. In fact, Forbes Magazine recently listed them in an article titled *20 Ways You’re Getting Ripped Off*. Naturally, I’ve been getting questions from clients wondering whether these shoes—like the popular Skechers Shape-Ups, Reebok’s EasyTone, FitFlops, and MBTs—are really worth the hype. These shoes are designed with a depressed heel and a rocker-bottom sole, marketed as tools to tone your legs and abs, improve posture, and help you burn more calories. Most of the advertising is aimed at women, promising easy, passive fitness gains. Sounds pretty tempting, right?
Are the Health Claims Real?
Here’s the reality: many of these claims aren’t backed by independent science. Most studies that support Shape-Ups and other negative heel shoes are funded by the brands themselves. And while the concept of instability training may sound legitimate, there’s little peer-reviewed research that confirms its effectiveness - especially for general fitness or long-term posture improvement.
To be fair, the shoes might have some applications in balance training or rehabilitation, but for the average healthy person? You’re better off investing in movement, not marketing.
Let’s break it down a bit more. Your feet, along with your hands, are among the most nerve-dense areas of your body. When you wear thick, cushioned, or oddly shaped soles - like many Skechers negative heel shoes or Kalso Earth Shoes - you actually dull the rich sensory input your feet provide. This input helps your brain understand where you are in space, which affects your balance, posture, and movement patterns.
The irony? These “posture-correcting shoes” may end up disrupting your natural gait instead. By shifting your weight forward onto the forefoot, they can increase stress on your knees, tilt your pelvis, and compress your lower back. Over time, this can reinforce harmful compensations rather than fix them.
So, Should You Wear Skechers Shape-Up Shoes?
If you’re just walking slowly around the house or mall, you might not notice much of a difference. But I wouldn’t recommend them for regular use, especially not for strength training or prolonged wear. And I definitely wouldn’t rely on them to tone your core or burn calories.
Yes, you may feel some extra muscle activity when you first put them on. But that novelty fades quickly as your body adapts - just like it would to any new shoe or posture adjustment. A more sustainable and effective approach? Train your body to move well without relying on gimmicky footwear.
the evolution of man
A Better Way to Improve Posture, Tone Your Legs, and Burn Calories
Try this instead:
Stand up right now, kick your shoes off, and plant your feet hip-width apart. Point your toes straight forward, spread them wide, and soften your knees. Tuck your tailbone slightly, draw your abdominals in, roll your shoulders back, and lengthen the crown of your head toward the ceiling.
Now walk around the room like that. Slowly. Mindfully. Feel how the energy moves from the floor, through your feet, legs, and core, all the way up to your shoulders and head. That’s postural training in action - no negative heel needed.
This mindful movement alone can activate your muscles more effectively than anything a $120 shoe promises. Better yet, it costs you nothing and strengthens your body in ways that last.
Looking Ahead: Smarter Footwear Choices
While you can’t be barefoot all the time, you can choose footwear that supports natural movement. A flatter sole, minimal cushioning, and enough room for your toes to splay are great starting points. In my next blog, I’ll dig deeper into how to choose the right footwear, explore barefoot training trends, and reveal why yoga practitioners might be ahead of the game when it comes to posture and movement.
When it comes to your health, skip the gimmicks. Instead of chasing shortcuts like Shape-Ups, invest in habits that reinforce strength, alignment, and awareness. Your feet - and the rest of your body - will thank you for it.
Want to Build Real Strength and Better Posture?
Forget the gimmicks. If you're serious about improving posture, core strength, and functional movement, the best place to start is on land.
👉 Check out our Dryland Training Programs – designed by swim and strength experts to help you build a resilient, balanced body from the ground up.
Frequently Asked Questions About Negative Heel Shoes
-
Negative heel shoes are designed with a sole that positions the heel slightly lower than the forefoot. Brands like Skechers Shape-Ups, MBT, and FitFlop promote them as tools to engage more muscles, improve posture, and burn extra calories by creating instability and altering gait mechanics. The concept is that your body must work harder to stay balanced, which may lead to more muscle activation.
-
Some individuals experience temporary relief when wearing negative heel or rocker-bottom shoes, especially those dealing with conditions like plantar fasciitis or tight Achilles tendons. However, this relief is often due to cushioning rather than real biomechanical correction. Long-term use may lead to new issues by altering posture, gait, and joint alignment. Consulting a physical therapist is a safer way to address chronic pain or structural imbalances.
-
Yes, especially for individuals with knee replacements, hip instability, or spinal issues. The altered mechanics of rocker shoes can shift stress onto vulnerable joints, leading to discomfort or worsening symptoms. A supportive, neutral shoe that matches your foot structure is generally a better choice for long-term joint health.
-
Any change in your posture or footwear will temporarily recruit different muscles as your body adapts. This sensation may feel like increased activation, but it doesn’t necessarily mean you’re getting stronger or burning significantly more calories. The effect usually fades as your body adjusts.
-
They are not recommended for high-impact activities or resistance training. Due to the instability they create, negative heel shoes can increase your risk of falls, ankle sprains, and movement compensations. At best, they may be worn occasionally for short walks - but even then, caution is advised.
-
Focus on building awareness and control through posture training, mobility work, and barefoot strengthening exercises. Strengthening your feet, ankles, and core from the ground up offers more sustainable benefits. Supportive flat-soled shoes or well-fitted athletic footwear are more appropriate for everyday use.
-
Minimalist shoes can encourage foot strength and better posture in some people, but they’re not a universal solution. Transitioning to barefoot or minimalist footwear should be gradual and ideally guided by a movement specialist, especially if you have a history of foot or joint issues.
-
Minimalist shoes can encourage foot strength and better posture in some people, but they’re not a universal solution. Transitioning to barefoot or minimalist footwear should be gradual and ideally guided by a movement specialist, especially if you have a history of foot or joint issues.
-
Your best bet is to get assessed by a movement specialist or trained staff at a running store. They can help match your footwear to your specific foot shape, arch type, and activity level. A shoe should support your natural gait - not distort it.
References
- American Council on Exercise – Effectiveness of Toning Shoes
- American Academy of Podiatric Sports Medicine – Rocker Soles
- Arthritis Foundation – Footwear and Orthotics
- ACE–University of Wisconsin Study on Shape-Ups
- Mayo Clinic – Foot Health and Proper Footwear
- Journal of Strength and Conditioning Research – Barefoot Training
- Harvard Health – The Truth About Barefoot Running
- American Podiatric Medical Association – Choosing the Right Footwear