Attention runners: The next time you go out for a jog, you might want to strap a light resistance band between your feet. This rather quirky but oddly effective hack, according to UC Santa Barbara mechanical engineer Elliot Hawkes, could make you a more efficient runner by approximately 6.4%.

“In running, the energy is mostly wasted,” said Hawkes, who conducted research on this topic while at Stanford University. His paper appears in the Journal of Experimental Biology.

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