Effect of Gait Speed on Recovery Motion from Tripping on a Treadmill

The analysis of the mechanism of fall avoidance motion is required to prevent fall-related injuries. To investigate the factors that affect fall avoidance motion, tripping was induced among 10 healthy male subjects during treadmill walking at gait speeds of 3.5 and 4.0 km/h. The posture of the subje...

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Bibliographic Details
Published in:Applied sciences 2021-09, Vol.11 (17), p.7908
Main Authors: Akiyama, Yasuhiro, Miyata, Hazuki, Okamoto, Shogo, Yamada, Yoji
Format: Article
Language:English
Subjects:
Avoidance
Experiments
Fitness equipment
Force plates
Gait
Gait recognition
gait speed
Injury prevention
Legs
Motion capture
Older people
principal component analysis
Principal components analysis
reaction motion
treadmill
Treadmills
tripping
Walking
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Summary:The analysis of the mechanism of fall avoidance motion is required to prevent fall-related injuries. To investigate the factors that affect fall avoidance motion, tripping was induced among 10 healthy male subjects during treadmill walking at gait speeds of 3.5 and 4.0 km/h. The posture of the subjects and ground reaction force of the recovery steps were recorded using a motion capture system and force plate to analyze the effect of gait speed on recovery motion. The gait parameters of the recovery steps were calculated and compared between gait speeds. Principal component analysis was performed to identify the parameters that represent the recovery motion and the magnitude of the first and second recovery steps, and the balance of recovery steps were extracted as defining characteristics. Of the 18 gait parameters, such as step time, five differed depending on gait speeds. However, the other gait parameters and all four principal components did not differ significantly with respect to gait speeds. Furthermore, the distribution of principal components and gait parameters across subjects and gait speeds suggested that the variability between trials was greater than the effect of gait speed and individual characteristics on recovery motion.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11177908