The effect of aging on vertical postural control during the forward and backward shift of the center of pressure

Kasahara, Satoshi; Saitô, Hiroshi; Anjiki, Tsubasa; Osanai, Hitomi

doi:10.1016/j.gaitpost.2015.07.056

Cited by 32 publications

(30 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…(17) This means that the use of the obstacle detection shoes should promote injury prevention by decreasing the peak pressure of elderly visually impaired people. (18)(19)(20) There was decreased muscle activity when walking with the obstacle detection shoes. In particular, the decreased activity of all muscles in the lower limb when walking with the obstacle detection shoes may be correlated with the decreased gait speed indicated by the increased required time to pass.…”

Section: Discussionmentioning

confidence: 99%

Development of Obstacle Detection Shoes for Visually Impaired People

Yang¹,

Jung²,

Kim³

2020

Sensors and Materials

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Development of Obstacle Detection Shoes for Visually Impaired People

Yang¹,

Jung²,

Kim³

2020

Sensors and Materials

View full text Add to dashboard Cite

“…Hip flexion, knee extension, and ankle dorsiflexion occurred when the COG shifted forward, whereas hip extension, knee flexion, and ankle plantarflexion occurred when the COG shifted backward while standing on the floor19 ) . This agrees with our results of lower limb joint motions during the CT. On the other hand, during the ET, hip and knee motions were small, ankle plantarflexion occurred when the PMD moved forward, and ankle dorsiflexion occurred when the PMD moved backward.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have reported that muscle activity of the dorsal lower limb muscles increases when the COG shifts forward, whereas activity of the ventral lower limb muscles increases when the COG shifts backward on the floor19, 22,23,24 ) . In addition, greater muscle activity increases are observed when subjects shift their COG to the edge of the base of support25 ) .…”

Section: Discussionmentioning

confidence: 99%

Motion analysis of operating a balance exercise assist robot system during forward and backward movements

et al. 2019

View full text Add to dashboard Cite

Stand-and-ride personal mobility devices controlled by movements of the user's center of gravity are used for balance training. We aimed to describe the physical activity required to operate this type of mobility device. [Participants and Methods] Eleven healthy males performed the following tasks: 1) moving their center of gravity forward or backward while standing on the floor (control task) and, 2) moving the mobility device forward or backward by moving their center of gravity (experimental task). [Results] We observed that the displacement of the center of gravity and the center of pressure, as well as angular displacements of the hips and knee joints, and maximum muscle activities of the biceps femoris, the medial head of the gastrocnemius and peroneus longus muscles were lesser during the experimental than during the control task. The distance moved by the device was significantly greater than the displacement of the user's center of gravity during the experimental task. [Conclusion] We observed that moving the device forward or backward required lesser physical activity than that required to shift the user's center of gravity forward or backward while standing on the floor. Additionally, we observed that even a small displacement of the user's center of gravity produced a large displacement of the device. We concluded that during balance training, the greater and more easily perceived movement of the mobility device would provide helpful feedback to the user.

show abstract

“…despite such a wide variety of equilibrium assessment conditions, there is still limited data about balance near the limits of stability (LoS). LoS is the amount of maximum excursion an individual is able to intentionally cover in any direction without losing his/her balance or taking a step [9,10]. it is expected that such conditions may help reveal deficits that are masked under normal conditions due to significant redundancy of the balance control system.…”

Section: Introductionmentioning

confidence: 99%

Balance control near to the limit of stability in young soccer players

Zając¹,

Kuczyński²,

Bieć³

2018

Physiother Quart.

View full text Add to dashboard Cite

Introduction. To compare postural performance and strategies in young soccer players between quiet standing and standing close to the limits of stability. Methods. The study included sixteen boys aged 13 years, who have trained soccer for about 5 years. Their body balance was assessed using the Kistler force platform. All participants performed 6 trials, lasting 20 seconds each: three with eyes open and three with eyes closed. The trials included quiet stance, the maximum foreward tilt and maximum backward tilt. Based on the center of pressure (CoP) recorded at sampling rate of 100 Hz the following sway parameters were evaluated: variability, range and mean velocity as well frequency, entropy and fractal dimension. Results. in frontal and sagittal plane, the CoP variability, range and velocity during stances near the limits of stability were higher than in quiet stance. These increases were independent of the direction of body tilt. Body tilts decreased entropy and frequency in the frontal plane and increased fractality in the sagittal plane regardless the tilting direction. There was also a decrease in fractality in the frontal plane that took place during forward tilt only. Conclusions. Forward and backward tilt deteriorated postural performance in a similar way. However their effects on postural strategies were direction dependent. The strategies in the frontal plane indicated increased investment of attention, lower automaticity and more stable control. in contrast, the sagittal strategies displayed decreased stability with no changes in automaticity. Such inter-plane differences suggest specific allocation of the critical postural tasks in response to the threat of fall. it is plausible that, due to complexity of these reciprocal relationships, testing postural control near to stability limits may better differentiate specific groups and experimental manipulations than testing the limits of stability only.

show abstract

The effect of aging on vertical postural control during the forward and backward shift of the center of pressure

Cited by 32 publications

References 28 publications

Development of Obstacle Detection Shoes for Visually Impaired People

Development of Obstacle Detection Shoes for Visually Impaired People

Motion analysis of operating a balance exercise assist robot system during forward and backward movements

Balance control near to the limit of stability in young soccer players

Contact Info

Product

Resources

About