Comparative Analysis on Gait Patterns of the Elderly and the Young Regarding to Foot Pressure

이경득,; 김대웅,; 유중현,; 김경훈,; 이태용,; 박광석,; 정기성,; 박승범,

doi:10.5103/kjsb.2011.21.1.067

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…For the results in the MF and HF regions, the mean force, peak pressure, and contact area measured in the OT and UT all increased. Previous studies analyzing the gait characteristics of the elderly reported an increase in support time and a decrease in movement speed from the initial stance phase to the middle stance phase for stable gait [43]. Accordingly, it could be confirmed that total plantar pressure distribution, not local pressure, increased while using the cautious gait strategy to stably maintain dynamic balance in an environment with obstacles or uneven ground.…”

Section: Discussionmentioning

confidence: 68%

The Effects of Structural Characteristics of the Rollator on the Elderly’s Gait Strategies in Various Walking Environments

Jung,

Kim

2023

Applied Sciences

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A rollator, one of the most widely used among walking assistance devices, can assist the elderly with stable walking in their daily lives. In this study, we investigated how the structural characteristics of two types of rollators affect the upper and lower extremity muscle activity and plantar pressure of the elderly in various walking environments. We quantified muscle activity (upper and lower limbs) and plantar pressure (mean force, peak pressure, and contact area) of 11 older adults walking in various environments (flat, obstacle, uneven, and sloped terrain) using two types of rollators. Upper extremity muscle activity was highest in the obstacle terrain and the uneven terrain, and a significant difference was found due to the structural differences of the rollator. Additionally, it was observed that lower extremity muscle activity and plantar pressure patterns appeared in accordance with the gait strategy to maintain stability in an unstable or inclined walking environment. In other words, it was confirmed that the weight of the rollator, the size of the wheel, grip type, and the auxiliary tools had a great effect on the upper and lower extremity muscle activity and plantar pressure of the elderly during walking. From the results of this study, it can be suggested that it is absolutely necessary to consider the biomechanical characteristics of the elderly and the structure of the rollator, which appear differently depending on the walking environment, in the development of walking aids. In the future, more clinical data will be collected, and based on this a rollator that can safely assist the elderly in various walking environments will be developed.

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Section: Discussionmentioning

confidence: 68%

The Effects of Structural Characteristics of the Rollator on the Elderly’s Gait Strategies in Various Walking Environments

Jung,

Kim

2023

Applied Sciences

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Characteristic Comparison of Ground Reaction Force of the Taekwondo's Apkubi Motion and the Walking on Older Persons

Bae¹,

Kim²

2011

Korean Journal of Sport Biomechanics

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The purpose of this study was to quantify the biomechanical characteristics of the ground reaction force(GRF) during the Taekwondo's Apkubi, one of the basic movement in Taekwondo and the walking. The GRF profiles under the stance foot of Apkubi movement and walking were directly measured in sample of 20 healthy older persons. In the anterior-posterior and vertical direction, the GRF of the Apkubi movement reached to the peak braking force at 10% of the normalized stance time percent and the peak driving force at 90% of stance time, but that of the walking reached to the peak braking force at 20% of stance time and the peak driving force at 80% of stance time. In vertical force, the GRF of the walking showed two peak values, but that of the Apkubi movement seemed three peak values. Moreover the first peak vertical force was significantly(t=6.085, p<.001) greater in the walking(about 1.8 times of body weight) than the Apkubi(about 1.4 times of body weight). The walking velocity was affected significantly(over p<.05) by the braking impulse, the peak braking force and the first peak vertical force. Futhermore the peak braking force in the Apkubi showed a significant effect on the Apkubi's stride length(p<.01). So, we concluded that the braking force after the right touch down, the stance foot on the ground contributed to move the leg forward.

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Analysis of GRF & Plantar Foot Pressure of Stepping Foot on Skilled & Unskilled Player's in the Soccer Instep Shoot

Kim¹,

Lee²,

Jang³

2012

Korean Journal of Sport Biomechanics

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This study is for providing fundamental data of sport biomechanics in GRF & plantar pressure of stepping foot of skilled & unskilled players' at the soccer instep shooting moments. Wearing Pedar-x of Novel, the study has drawn the following conclusion after measuring and analyzing the impact on the GRF and plantar pressure of stepping foot at the instep shooting moments. First, maximum vertical GRF showed higher in the skilled group than in the unskilled group. The results showed significantly different. This study reached the conclusion that the players in the skilled group performed faster and stronger stepping foot motions that the ones in the unskilled(p<.01). Second, since the plantar pressure of the skilled group appeared significantly higher than that of the unskilled, it has brought us to the conclusion that the skilled group performed faster and stronger stepping foot motions than the unskilled group (p<.05). Third, at the moment of instep kicking, the skilled group's average maximum plantar foot pressure of stepping foot was higher than the unskilled. Though the difference was not statistically significant, it can be concluded that the skilled group performed faster and stronger stepping foot motions than the unskilled group(p>.05). Fourth, for the COP moving route of stepping foot while instep kicking, the skilled people performed accurate and strong shooting motions directly toward the target direction with stable postures, no matter how it's left, right, front or back.

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Comparative Analysis on Gait Patterns of the Elderly and the Young Regarding to Foot Pressure

Cited by 4 publications

References 27 publications

The Effects of Structural Characteristics of the Rollator on the Elderly’s Gait Strategies in Various Walking Environments

The Effects of Structural Characteristics of the Rollator on the Elderly’s Gait Strategies in Various Walking Environments

Characteristic Comparison of Ground Reaction Force of the Taekwondo's Apkubi Motion and the Walking on Older Persons

Analysis of GRF & Plantar Foot Pressure of Stepping Foot on Skilled & Unskilled Player's in the Soccer Instep Shoot

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