Q: What's better for your body than a rocker-bottom toning shoe?
A: A double rocker, of course!
Yes, two rockers are better than one -- but only when they're combined with an orthotic support that also stabilizes your foot!
Rocker soles are designed to gently assist your forward motion, and so they can often help to improve the mobility of people in pain. Z-CoiL has known for a long time how beneficial rocker soles can be; we've featured them in our footwear since 1995! In fact, the innovative design of our footwear creates, in effect, a double rocker, from the flexible coil that compresses at heel-strike, to the rounded and cushioned forefoot at toe-off.
Where other rocker-soled "toning" shoes have fallen short is in failing to live up to their fitness claims. They really don't firm your butt or burn more calories. Nor do they provide adequate stability for the foot along with the rocker, and this can actually hurt you rather than help you in the long run.
A recent study from the Exercise and Health Program at the University of Wisconsin warns that "extended wear of these toning shoes may alter the walking gait mechanics of wearers and, in some cases, potentially cause problems for those who may already be at risk for lower-extremity issues." In other words, if you have flat feet or a tendency to over-pronate (your foot rolls in), you should be wary of toning shoes that may exacerbate the problem and place extra stress on your joints and lower back.
Z-CoiL shoes, on the other hand, incorporate a built-in orthotic that helps to compensate for abnormal gait issues like over-pronation. Rather than "toning" shoes, we like to think of Z-CoiL as "wellness" shoes that tone your body naturally by making it easier, not harder, to walk!