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Using MATLAB , Virtual Reality , and a Treadmill to Investigate How Humans Use Visual Input to Control Their Gait

Unless they are in a hurry, people rarely think about how fast they’re walking. Instead, they select a gait that feels natural. Researchers have found that this gait is energetically optimal—it enables the walker to expend the least amount of energy when covering a given distance. While scientists have known for some time that people walk at a pace that minimizes energetic cost, they have yet to determine how key sensory inputs, such as metabolic rate and vision, affect natural gait selection.