Your browser doesn't support javascript.
loading
The effect of a passive trunk exoskeleton on metabolic costs during lifting and walking.
Baltrusch, S J; van Dieën, J H; Bruijn, S M; Koopman, A S; van Bennekom, C A M; Houdijk, H.
Afiliación
  • Baltrusch SJ; a Department of Research and Development , Rehabilitation Center Heliomare , Wijk aan Zee , The Netherlands.
  • van Dieën JH; b Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences , Vrije Universiteit Amsterdam , Amsterdam , The Netherlands.
  • Bruijn SM; b Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences , Vrije Universiteit Amsterdam , Amsterdam , The Netherlands.
  • Koopman AS; b Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences , Vrije Universiteit Amsterdam , Amsterdam , The Netherlands.
  • van Bennekom CAM; b Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences , Vrije Universiteit Amsterdam , Amsterdam , The Netherlands.
  • Houdijk H; a Department of Research and Development , Rehabilitation Center Heliomare , Wijk aan Zee , The Netherlands.
Ergonomics ; 62(7): 903-916, 2019 Jul.
Article en En | MEDLINE | ID: mdl-30929608
The objective of this study was to assess how wearing a passive trunk exoskeleton affects metabolic costs, movement strategy and muscle activation during repetitive lifting and walking. We measured energy expenditure, kinematics and muscle activity in 11 healthy men during 5 min of repetitive lifting and 5 min of walking with and without exoskeleton. Wearing the exoskeleton during lifting, metabolic costs decreased as much as 17%. In conjunction, participants tended to move through a smaller range of motion, reducing mechanical work generation. Walking with the exoskeleton, metabolic costs increased up to 17%. Participants walked somewhat slower with shortened steps while abdominal muscle activity slightly increased when wearing the exoskeleton. Wearing an exoskeleton during lifting decreased metabolic costs and hence may reduce the development of fatigue and low back pain risk. During walking metabolic costs increased, stressing the need for a device that allows disengagement of support depending on activities performed. Practitioner summary: Physiological strain is an important risk factor for low back pain. We observed that an exoskeleton reduced metabolic costs during lifting, but had an opposite effect while walking. Therefore, exoskeletons may be of benefit for lifting by decreasing physiological strain but should allow disengagement of support when switching between tasks. Abbreviations: COM: centre of mass; EMG: electromyography; LBP: low back pain; MVC: maximum voluntary isometric contraction; NIOSH: National Institute for Occupational Safety and Health; PLAD: personal lift augmentation device; PWS: preferred walking speed without exoskeleton; PWSX: preferred walking speed with exoskeleton; ROM: range of motion; RER: respiratory exchange ratio; V ̇O2max: maximum rate of oxygen consumption.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Caminata / Elevación / Músculo Esquelético / Metabolismo Energético / Torso / Dispositivo Exoesqueleto Tipo de estudio: Health_economic_evaluation / Risk_factors_studies Límite: Adult / Humans / Male Idioma: En Revista: Ergonomics Año: 2019 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Caminata / Elevación / Músculo Esquelético / Metabolismo Energético / Torso / Dispositivo Exoesqueleto Tipo de estudio: Health_economic_evaluation / Risk_factors_studies Límite: Adult / Humans / Male Idioma: En Revista: Ergonomics Año: 2019 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido