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Titre : | Reduction in Energy Expenditure During Walking Using an Automated Stride Assistance Device in Healthy Young Adults (2014) |
Auteurs : | Ryosuke Kitatani ; Koji Ohata ; Hideaki Takahashi |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2014/11, 2014) |
Article en page(s) : | p. 2128-2133 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Rééducation et réadaptation ; Robotique |
Mots-clés: | Robotics ; Walking ; Marche à pied |
Résumé : |
Objective To investigate the effects of an automated stride assistance device that assists hip joint flexion and extension movement in energy expenditure during walking in healthy young adults using an expired gas method. Design Prospective, single-group design to compare the differences of energy expenditure between 2 assistive conditions. Setting Laboratory. Participants Healthy volunteers (N=10) aged 21 to 32 years. Interventions Not applicable. Main Outcome Measures Oxygen consumption per unit time ( o2) cost (ml·kg−1·m−1), and heart rate (beats/min) were measured in 2 assistive conditions (with 3-Nm hip motion assistance and without assistance) and at 2 walking speeds (comfortable walking speed [CWS] and maximum walking speed [MWS]). Results There were no significant differences in walking speed between the with- and without-assistance conditions at either the CWS or MWS. The o2 cost and heart rate were significantly reduced in the with-assistance condition compared with the without-assistance condition, at both the CWS and MWS. The reduction in the o2 cost during the with-assistance condition, relative to the without-assistance condition, was 7.06% at the CWS and 10.52% at the MWS. Conclusions The automated stride assistance device is useful for reducing energy expenditure during walking in healthy adults. Further studies are warranted to investigate if this device provides substantial help to individuals with impaired mobility as a result of strength deficits. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314005024 |