Harvesting Energy by Improving the Economy of Human Walking
- 9 September 2005
- journal article
- editorial
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 309 (5741), 1686-1687
- https://doi.org/10.1126/science.1118058
Abstract
Mobile power sources such as batteries often add great additional weight to a backpacker's load. As a result, there is great interest in harvesting electrical power from the energy expended during walking in a variety of situations. In his Perspective, Kuo discusses results reported in the same issue by Rome et al. , in which a backpack with a spring-loaded weight was found to permit generation of electrical power with unexpected efficiency. Analysis of the biomechanics of walking indicates that the oscillating payload enables generation of useful amounts of power while costing less metabolic energy than expected.Keywords
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