A team of researchers and engineers at Stanford University has developed a radical new method to improve the efficiency of human running. They tied the subjects' shoes with a strong, short rubber band, which may seem like a joke, but it actually hides a complex and thoughtful scientific analysis. The experiment confirmed the researchers' correctness - this strange trick reduced the energy expenditure while running by 10%.
A person, no matter how paradoxical it sounds, runs very badly. More precisely, it does it extremely ineffectively. Of the 10 calories spent in the process, only 1 is spent with benefit. One of the reasons is that our legs are not designed for long rhythmic movements, and we also do not know how to effectively change the speed of movement. A person involuntarily tries to take large, wide strides, in running we try to imitate graceful animals like deer, although our bodies are arranged fundamentally differently.
When jogging, the average person maintains an average pace of 90 steps per minute. If he took shorter steps, he would use less energy, but then he would have to increase the speed of movement, and this is unnatural and inconvenient. A simple elastic band that prevents the legs from being too far apart compensates for this disadvantage. The steps become shorter and the running pace is faster - the subjects with their legs tied easily ran 100 steps per minute.
This is somewhat reminiscent of rowing or working in a simulator - when the body is rigidly limited by equipment, a person quickly adapts to performing short, energy-efficient movements. None of the participants in the experiment complained about the inconvenience, the addiction happened quickly and naturally. You can try this technique yourself, all you need is a pair of sneakers and a piece of rubber band about 25% of your leg length.