Biophysics

Generating electricity while walking with loads

Lawrence C. Rome, Louis Flynn, Evan Goldman, Taeseung D. Yoo

Research output: Contribution to journalArticle

351 Citations (Scopus)

Abstract

We have developed the suspended-load backpack, which converts mechanical energy from the vertical movement of carried loads (weighing 20 to 38 kilograms) to electricity during normal walking [generating up to 7.4 watts, or a 300-fold increase over previous shoe devices (20 milliwatts)]. Unexpectedly, little extra metabolic energy (as compared to that expended carrying a rigid backpack) is required during electricity generation. This is probably due to a compensatory change in gait or loading regime, which reduces the metabolic power required for walking. This electricity generation can help give field scientists, explorers, and disaster-relief workers freedom from the heavy weight of replacement batteries and thereby extend their ability to operate in remote areas.

Original languageEnglish (US)
Pages (from-to)1725-1728
Number of pages4
JournalScience
Volume309
Issue number5741
DOIs
StatePublished - Sep 9 2005

Fingerprint

Biophysics
Electricity
Walking
Shoes
Disasters
Gait
Weights and Measures
Equipment and Supplies

All Science Journal Classification (ASJC) codes

  • General

Cite this

Rome, Lawrence C. ; Flynn, Louis ; Goldman, Evan ; Yoo, Taeseung D. / Biophysics : Generating electricity while walking with loads. In: Science. 2005 ; Vol. 309, No. 5741. pp. 1725-1728.
@article{e2f3a03e201b4ec4a1b43c14e1fed503,
title = "Biophysics: Generating electricity while walking with loads",
abstract = "We have developed the suspended-load backpack, which converts mechanical energy from the vertical movement of carried loads (weighing 20 to 38 kilograms) to electricity during normal walking [generating up to 7.4 watts, or a 300-fold increase over previous shoe devices (20 milliwatts)]. Unexpectedly, little extra metabolic energy (as compared to that expended carrying a rigid backpack) is required during electricity generation. This is probably due to a compensatory change in gait or loading regime, which reduces the metabolic power required for walking. This electricity generation can help give field scientists, explorers, and disaster-relief workers freedom from the heavy weight of replacement batteries and thereby extend their ability to operate in remote areas.",
author = "Rome, {Lawrence C.} and Louis Flynn and Evan Goldman and Yoo, {Taeseung D.}",
year = "2005",
month = "9",
day = "9",
doi = "10.1126/science.1111063",
language = "English (US)",
volume = "309",
pages = "1725--1728",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5741",

}

Biophysics : Generating electricity while walking with loads. / Rome, Lawrence C.; Flynn, Louis; Goldman, Evan; Yoo, Taeseung D.

In: Science, Vol. 309, No. 5741, 09.09.2005, p. 1725-1728.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Biophysics

T2 - Generating electricity while walking with loads

AU - Rome, Lawrence C.

AU - Flynn, Louis

AU - Goldman, Evan

AU - Yoo, Taeseung D.

PY - 2005/9/9

Y1 - 2005/9/9

N2 - We have developed the suspended-load backpack, which converts mechanical energy from the vertical movement of carried loads (weighing 20 to 38 kilograms) to electricity during normal walking [generating up to 7.4 watts, or a 300-fold increase over previous shoe devices (20 milliwatts)]. Unexpectedly, little extra metabolic energy (as compared to that expended carrying a rigid backpack) is required during electricity generation. This is probably due to a compensatory change in gait or loading regime, which reduces the metabolic power required for walking. This electricity generation can help give field scientists, explorers, and disaster-relief workers freedom from the heavy weight of replacement batteries and thereby extend their ability to operate in remote areas.

AB - We have developed the suspended-load backpack, which converts mechanical energy from the vertical movement of carried loads (weighing 20 to 38 kilograms) to electricity during normal walking [generating up to 7.4 watts, or a 300-fold increase over previous shoe devices (20 milliwatts)]. Unexpectedly, little extra metabolic energy (as compared to that expended carrying a rigid backpack) is required during electricity generation. This is probably due to a compensatory change in gait or loading regime, which reduces the metabolic power required for walking. This electricity generation can help give field scientists, explorers, and disaster-relief workers freedom from the heavy weight of replacement batteries and thereby extend their ability to operate in remote areas.

UR - http://www.scopus.com/inward/record.url?scp=24644452464&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24644452464&partnerID=8YFLogxK

U2 - 10.1126/science.1111063

DO - 10.1126/science.1111063

M3 - Article

VL - 309

SP - 1725

EP - 1728

JO - Science

JF - Science

SN - 0036-8075

IS - 5741

ER -