Automated stride assistance device improved the gait parameters and energy cost during walking of healthy middle-aged females but not those of young controls.
[Purpose] The aim of this study was to clarify the effects of an automated stride assistance device on gait parameters and energy cost during walking performed by healthy middle-aged and young females. [Subjects and Methods] Ten middle-aged females and 10 young females were recruited as case and control participants, respectively. The participants walked for 3 minutes continuously under two different experimental conditions: with the device and without the device. Walking distance, mean walking speed, mean step length, cadence, walk ratio and the physiological cost index during the 3-minutes walk were measured. [Results] When walking with the stride assistance device, the step length and walk ratio of the middle-aged group were significantly higher than without it. Also, during walking without assistance from the device, the physiological cost index of the middle-aged group significantly increased; whereas during walking with assistance, there was no change. The intergroup comparison in the middle-aged group showed the physiological cost index was lower under the experimental condition with assistance provided, as opposed to the condition without the provision of assistance. [Conclusion] The results of this study show that the stride assistance device improved the gait parameters of the middle-aged group but not those of young controls.
Rehabilitation Division, Tottori University Hospital, Japan.
Risa
R
Otsuki
Rehabilitation Division, Tottori University Hospital, Japan.
Hiromi
H
Matsumoto
Center for Promoting Next-Generation Highly Advanced Medicine, Tottori University Hospital, Japan.
Masaru
M
Ueki
Center for Promoting Next-Generation Highly Advanced Medicine, Tottori University Hospital, Japan.
Kazutake
K
Uehara
Center for Promoting Next-Generation Highly Advanced Medicine, Tottori University Hospital, Japan.
Nobuko
N
Nozawa
Rehabilitation Division, Tottori University Hospital, Japan.
Mari
M
Osaki
Rehabilitation Division, Tottori University Hospital, Japan; School of Health Science, Faculty of Medicine, Tottori University, Japan.
Hiroshi
H
Hagino
Gait exercise; Physiological cost index; Robotic device