Reducing the metabolic rate of walking and running with a versatile, portable exosuit

被引：352

作者：

Kim, Jinsoo ^{[1
,2
]}

Lee, Giuk ^{[3
]}

Heimgartner, Roman ^{[1
,2
]}

Revi, Dheepak Arumukhom ^{[1
,2
]}

Karavas, Nikos ^{[1
,2
]}

Nathanson, Danielle ^{[1
,2
]}

Galiana, Ignacio ^{[1
,2
]}

Eckert-Erdheim, Asa ^{[1
,2
]}

Murphy, Patrick ^{[1
,2
]}

Perry, David ^{[1
,2
]}

Menard, Nicolas ^{[1
,2
]}

Choe, Dabin Kim ^{[1
,2
]}

Malcolm, Philippe ^{[4
,5
]}

Walsh, Conor J. ^{[1
,2
]}

机构：

[1] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA

[3] Chung Ang Univ, Dept Mech Engn, Seoul 06974, South Korea

[4] Univ Nebraska Omaha, Dept Biomech, Omaha, NE 68182 USA

[5] Univ Nebraska Omaha, Ctr Res Human Movement Variabil, Omaha, NE 68182 USA

来源：

SCIENCE | 2019年 / 365卷 / 6454期

基金：

美国国家科学基金会;

关键词：

GENERATING MUSCULAR FORCE; HIP EXTENSION ASSISTANCE; CENTER-OF-MASS; ENERGY-EXPENDITURE; LEVEL WALKING; EXOSKELETON ASSISTANCE; MECHANICAL WORK; LOADED WALKING; COST; ENERGETICS;

D O I：

10.1126/science.aav7536

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Walking and running have fundamentally different biomechanics, which makes developing devices that assist both gaits challenging. We show that a portable exosuit that assists hip extension can reduce the metabolic rate of treadmill walking at 1.5 meters per second by 9.3% and that of running at 2.5 meters per second by 4.0% compared with locomotion without the exosuit. These reduction magnitudes are comparable to the effects of taking off 7.4 and 5.7 kilograms during walking and running, respectively, and are in a range that has shown meaningful athletic performance changes. The exosuit automatically switches between actuation profiles for both gaits, on the basis of estimated potential energy fluctuations of the wearer's center of mass. Single-participant experiments show that it is possible to reduce metabolic rates of different running speeds and uphill walking, further demonstrating the exosuit's versatility.

引用

页码：668 / +

页数：39

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