Working with a band between your toes may sound ridiculous, but it surely might make you noticeably extra environment friendly. In a Stanford-led research, revealed within the Journal of Experimental Biology, researchers discovered that this silly-looking setup helped runners use about six per cent much less power. Is it a trick price making an attempt? Right here’s what it’s good to know.
Mechanical engineer Elliot Hawkes, now on the College of Calif., Santa Barbara, first had the thought whereas biking previous a working monitor in San Francisco, as reported in science information outlet phys.org. Watching runners push by means of their strides, he observed how a lot power gave the impression to be misplaced with every step. That sparked a query: might a primary piece of stretchy tubing—like surgical resistance banding—make working extra environment friendly?
A literal spring in your step
To scale back the hassle it takes to swing the legs whereas working, Hawkes and his group examined a easy setup utilizing a brief piece of surgical tubing, clipped between runners’ footwear. This “exotendon” labored like a spring, storing and returning power with every stride, very similar to the tendons in a cheetah’s legs.
Earlier than bringing it to the monitor, the researchers measured how a lot power the band might return in a lab check. Stretched from 30 to 70 centimeters and connected to a weight, the band rebounded with 97 per cent effectivity—outstanding for such an on a regular basis materials. As soon as runners tried it, the advantages turned clear. With much less muscular effort wanted to maneuver their legs, they naturally adopted faster, lighter steps, bettering effectivity with none change in kind or acutely aware effort.
One small band for giant positive factors
In whole, 19 wholesome younger adults took half within the research. None had accidents or situations that may intervene with their stride. Whereas the setup seemed unusual, the difference was practically immediate—not solely did runners keep away from tripping or tangling, however additionally they confirmed a mean 6.4 per cent enchancment in effectivity. In response to Hawkes, the band additionally made it simpler to bounce off the bottom throughout every footstrike, which is a significant supply of power loss in working.
Earlier than you attempt it
The model used within the research was lower to a few quarter of every runner’s leg size—brief sufficient to remain away from tangles, lengthy sufficient to not snap. The exams had been all finished on flat, paved surfaces, and the impact didn’t appear to stay after the band got here off. In different phrases, this isn’t a coaching device that teaches higher kind; it’s extra like an assistive gadget. You gained’t be sporting it as you chase your half-marathon PB. Nonetheless, for anybody curious, it may be price experimenting. As Hawkes put it, “Somebody in contrast it to an electrical bicycle, the place you simply go sooner, so it’s enjoyable.”
