scholarly journals The Comparison of the Difference in Foot Pressure, Ground Reaction Force, and Balance Ability According to the Foot Arch Height in Young Adults

2021 ◽  
Vol 9 (2) ◽  
pp. 0-0
Author(s):  
Jun-Young Song ◽  
Sam-Ho Park ◽  
Myung-Mo Lee ◽  
◽  
◽  
...  
Keyword(s):  
Young Adults ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Arch Height ◽  
Foot Pressure ◽  
Foot Arch ◽  
Balance Ability ◽  
The Difference

A New Lower Extremity Modeling of Human Body With Variable Feet Links

2000 ◽  
Author(s):  
Nader Arafati ◽  
Jean Yves Lazennec ◽  
Roger Ohayon
Keyword(s):  
Ground Reaction Force ◽  
Sagittal Plane ◽  
Reaction Force ◽  
Human Movement ◽  
Knee Joints ◽  
Foot Pressure ◽  
Ankle Joints ◽  
Reaction Forces ◽  
Human Movement Modeling ◽  
Force Vectors

Abstract Human movement modeling has been the object of much research for the past 30 years. In these models the position of foot link was fixed on the ground. We propose to model the feet links as variable, since the position of foot pressure center changes from heel to toes. The ground reaction forces could also be analyzed in real time. We examined this model for some static postures. In standing anatomical position, the maximum articular forces are localized in hip and knee joints. In sagittal plane, the ground reaction force vectors are positioned nearly under ankle joints. The pathological postures like body with pes cavus or with global spine kyphosis increase the articular and muscular forces. In these cases, the position of ground reaction force vectors is moved toward the toes.

Relationships Between Arch Height Flexibility and Medial–Lateral Ground Reaction Forces in Rearfoot and Forefoot Strike Runners

2020 ◽  
pp. 1-4
Author(s):  
Caleb D. Johnson ◽  
Irene S. Davis
Keyword(s):  
Military Personnel ◽  
Statistical Significance ◽  
Reaction Force ◽  
Small Sample ◽  
Arch Height ◽  
Lateral Forces ◽  
Reaction Forces ◽  
Recreational Runners ◽  
The Difference ◽  
Force Data

Higher medial–lateral forces have been reported in individuals with stiffer foot arches. However, this was in a small sample of military personnel who ran with a rearfoot strike pattern. Therefore, our purpose was to investigate whether runners, both rearfoot and forefoot strikers, show different associations between medial–lateral forces and arch stiffness. A group of 118 runners (80 rearfoot strikers and 38 forefoot strikers) were recruited. Ground reaction force data were collected during running on an instrumented treadmill. Arch flexibility was assessed as the difference in arch height from sitting to standing positions, and participants were classified into stiff/flexible groups. Group comparisons were performed for the ratio of medial:vertical and lateral:vertical impulses. In rearfoot strikers, runners with stiff arches demonstrated significantly higher medial:vertical impulse ratios (P = .036). Forefoot strikers also demonstrated higher proportions of medial forces; however, the mean difference did not reach statistical significance (P = .084). No differences were detected in the proportion of lateral forces between arch flexibility groups. Consistent with previous findings in military personnel, our results indicate that recreational runners with stiffer arches have a higher proportion of medial forces. Therefore, increasing foot flexibility may increase the ability to attenuate medial forces.

The relationship between foot arch flexibility and medial-lateral ground reaction force distribution

2019 ◽  
Vol 69 ◽  
pp. 46-49 ◽  
Author(s):  
Rebecca Zifchock ◽  
Regina Parker ◽  
Willahelm Wan ◽  
Michael Neary ◽  
Jinsup Song ◽  
...  
Keyword(s):  
Ground Reaction Force ◽  
Reaction Force ◽  
Force Distribution ◽  
Foot Arch ◽  
The Relationship

The Within-Subjects Effects of Practice on Performance of Drop Landing in Healthy, Young Adults

Motor Control ◽  
2020 ◽  
Vol 24 (1) ◽  
pp. 39-56
Author(s):  
James Hackney ◽  
Jade McFarland ◽  
David Smith ◽  
Clinton Wallis
Keyword(s):  
Young Adults ◽  
Ground Reaction Force ◽  
High Speed ◽  
Reaction Force ◽  
Force Plate ◽  
Jump Height ◽  
Lower Body ◽  
Variable Measure ◽  
Drop Landing ◽  
Within Subjects

Most studies of high-speed lower body movements include practice repetitions for facilitating consistency between the trials. We investigated whether 20 repetitions of drop landing (from a 30.5-cm platform onto a force plate) could improve consistency in maximum ground reaction force, linear lower body stiffness, depth of landing, and jump height in 20 healthy, young adults. Coefficient of variation was the construct for variability used to compare the first to the last five repetitions for each variable. We found that the practice had the greatest effect on maximum ground reaction force (p = .017), and had smaller and similar effects on lower body stiffness and depth of landing (p values = .074 and .044, respectively), and no measurable effect on jump height. These findings suggest that the effect of practice on drop landing differs depending upon the variable measure and that 20 repetitions significantly improve consistency in ground reaction force.

Static and Dynamic Plantar Pressure and Normalized Plantar Pressure Characteristics among Children, Adults, and the Elderly

2021 ◽  
Vol 104 (12) ◽  
pp. 1881-1887
Keyword(s):  
Young Adults ◽  
Plantar Pressure ◽  
Center Of Pressure ◽  
The Elderly ◽  
Quiet Standing ◽  
Foot Pressure ◽  
Gait Performance ◽  
Plantar Pressures ◽  
Balance Ability ◽  
Pressure Characteristics

Background: A better understanding of plantar pressure while standing and walking would help in improving balance and gait performance across different age ranges. Objective: To clarify the differences of plantar pressure while standing and walking among children, adults, and the elderly. Materials and Methods: Fifty-three participants including eleven aged 3 to 8 years, thirty aged 20 to 40 years, and twelve aged 60 to 90 years were included in the present study. Plantar pressure and related parameters while quiet standing and walking with self-selected speed were assessed. Results: In static plantar pressure, no significant differences were observed of mean different pressure and mean different contact area between dominant and non-dominant limbs among the three groups, while center of pressure (COP) displacement was shown as significantly greater between children and adults (p<0.05). For dynamic plantar pressure, no significant differences in COP velocity were found among the three groups. The elderly showed significant lower normalized maximum plantar pressure in areas of the second and third metatarsal, and internal heel compared with the young adults (p<0.05). Additionally, normalized maximum plantar pressures among children seemed to differ from adults. Conclusion: Plantar pressure characteristics could indicate that children develop gait ability in braking and propulsion phases with greater heel and toe function, while the ability of braking and propulsion declined with aging. These could reflect balance ability while standing or walking. Keywords: Foot pressure; Children; Elderly; Normalization

scholarly journals How does body symmetry influence standing balance?

Kinesiology ◽  
2019 ◽  
Vol 51 (1) ◽  
Author(s):  
Ana Kašček Bučinel ◽  
Matej Supej ◽  
Nicola Petrone ◽  
Ivan Čuk
Keyword(s):  
Lean Mass ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Body Height ◽  
Morphological Characteristics ◽  
Standing Balance ◽  
Upper Arm ◽  
The Difference ◽  
The Right ◽  
Sports Activities

The aim of the study was to determine whether maintaining the standing balance position is influenced by athlete’s symmetric morphological characteristics. Thirty-two healthy sports students participated in this study (age 19.8±1.4 years, body height 182.9±6.8 cm, body weight 79.1±8.1 kg). Morphological characteristics are represented with differences between the left and the right body side of: forearm girth, upper arm girth, calf girth, thigh girth, long shoulder height, lean mass of legs and lean mass of arms. The standing balance result was calculated as a result of factor scores for 9 measurements of 30 seconds (3 measurements of normal standing, 3 measurements of blind standing, and 3 measurements of deaf standing) collected from the pressure insoles system and the difference in ground reaction force between the left and the right leg. Results show that the asymmetric leg load in maintaining standing balance depends on the side differences in the thigh girth and upper arm girth. The greater difference in the thigh girth in favour of the left side resulted in bigger ground reaction force on the right leg compared to the left leg and the greater difference in the upper arm girth in favour of the left side resulted in bigger ground reaction force on the left leg. To avoid one side overload, it is essential for all sports activities to be performed bilaterally.

Limb Dominance Related to the Variability and Symmetry of the Vertical Ground Reaction Force and Center of Pressure

2012 ◽  
Vol 28 (4) ◽  
pp. 473-478 ◽  
Author(s):  
Yun Wang ◽  
Kazuhiko Watanabe
Keyword(s):  
Ground Reaction Force ◽  
Center Of Pressure ◽  
Reaction Force ◽  
Rehabilitation Program ◽  
Vertical Ground Reaction Force ◽  
Foot Pressure ◽  
Walking Gait ◽  
Posterior Direction ◽  
Vertical Ground ◽  
Limb Dominance

The notion of limb dominance has been commonly used in the upper extremity, yet the two lower extremities are often treated as equal for analytical purposes. Attempts to determine the effects of limb laterality on gait have produced conflicting results. The purpose of this study was to determine if limb dominance affects the vertical ground reaction force and center of pressure (COP) during able-bodied gait. The Parotec system (Paromed GmbH, Germany) was used to collect plantar foot pressure data. Fifteen subjects volunteered to participate in this study. The coefficient of variation of the COP displacement in the mediolateral direction and the variability of peak force beneath the lateral forefoot in the nondominant foot were significant greater than in the dominant foot. Moreover, COP velocity in the anterior-posterior direction during the terminal stance phase showed greater value in the dominant foot. Our study provides support for limb laterality by showing limb dominance affected the vertical ground reaction force and center of pressure during walking gait. This finding suggests it is an important issue in movement science for clinicians and would assist in improving sports performance and rehabilitation program.

scholarly journals Effects of obesity and foot arch height on gait mechanics: A cross-sectional study

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260398
Author(s):  
Daekyoo Kim ◽  
Cara L. Lewis ◽  
Simone V. Gill
Keyword(s):  
Knee Joint ◽  
Plantar Flexion ◽  
Normal Weight ◽  
Joint Mechanics ◽  
Arch Height ◽  
Foot Pressure ◽  
Excessive Weight ◽  
Foot Arch ◽  
Gait Mechanics ◽  
Lower Arch

Foot arch structure contributes to lower-limb joint mechanics and gait in adults with obesity. However, it is not well-known if excessive weight and arch height together affect gait mechanics compared to the effects of excessive weight and arch height alone. The purpose of this study was to determine the influences of arch height and obesity on gait mechanics in adults. In this study, 1) dynamic plantar pressure, 2) spatiotemporal gait parameters, 3) foot progression angle, and 4) ankle and knee joint angles and moments were collected in adults with normal weight with normal arch heights (n = 11), normal weight with lower arch heights (n = 10), obesity with normal arch heights (n = 8), and obesity with lower arch heights (n = 18) as they walked at their preferred speed and at a pedestrian standard walking speed, 1.25 m/s. Digital foot pressure data were used to compute a measure of arch height, the Chippaux-Smirak Index (CSI). Our results revealed that BMI and arch height were each associated with particular measures of ankle and knee joint mechanics during walking in healthy young adults: (i) a higher BMI with greater peak internal ankle plantar-flexion moment and (ii) a lower arch height with greater peak internal ankle eversion and abduction moments and peak internal knee abduction moment (i.e., external knee adduction moment). Our results have implications for understanding the role of arch height in reducing musculoskeletal injury risks, improving gait, and increasing physical activity for people living with obesity.

Sign in / Sign up

Export Citation Format

Share Document