The Relationship between Accessory Navicular and Medial Longitudinal Arch: Evaluation with a Plantar Pressure Distribution Measurement System

2003 ◽  
Vol 24 (6) ◽  
pp. 486-489 ◽  
Author(s):  
Ulunay Kanatli ◽  
Haluk Yetkin ◽  
Nadir Yalcin
Keyword(s):  
Pressure Distribution ◽  
Measurement System ◽  
Medial Longitudinal Arch ◽  
Distribution Measurement ◽  
Longitudinal Arch ◽  
Plantar Pressure Distribution ◽  
Accessory Navicular ◽  
Analysis Laboratory ◽  
Arch Index ◽  
The Relationship

This study included 92 patients with an accessory navicular (AN) noted on an anteroposterior roentgenography. This group was selected from 860 patients admitted to the authors' gait analysis laboratory. The medial longitudinal arch was evaluated by using an “arch index” calculated from the pressure picture obtained from a pressure distribution measurement system. The average arch index was 0.15 and there was no significant correlation between AN types and arch index. The study concluded that the presence and type of AN are not correlated with the height of the medial longitudinal arch of the foot and that AN is not associated with pes planus.

scholarly journals Effect of additional body weight on arch index and dynamic plantar pressure distribution during walking and gait termination

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8998
Author(s):  
Xuanzhen Cen ◽  
Datao Xu ◽  
Julien S. Baker ◽  
Yaodong Gu
Keyword(s):  
Body Weight ◽  
Pressure Distribution ◽  
Plantar Pressure ◽  
Foot Injuries ◽  
Gait Termination ◽  
Longitudinal Arch ◽  
Plantar Pressure Distribution ◽  
Foot Morphology ◽  
Arch Index ◽  
Daily Physical Activities

The medial longitudinal arch is considered as an essential feature which distinguishes humans from other primates. The longitudinal arch plays a supporting and buffering role in human daily physical activities. However, bad movement patterns could lead to deformation of arch morphology, resulting in foot injuries. The authors aimed to investigate any alterations in static and dynamic arch index following different weight bearings. A further aim was to analyze any changes in plantar pressure distribution characteristics on gait during walking and stopping, Twelve males were required to complete foot morphology scans and three types of gait tests with 0%, 10%, 20% and 30% of additional body weight. The dynamic gait tests included walking, planned and unplanned gait termination. Foot morphology details and plantar pressure data were collected from subjects using the Easy-Foot-Scan and Footscan pressure platform. No significant differences were observed in static arch index when adding low levels of additional body weight (10%). There were no significant changes observed in dynamic arch index when loads were added in the range of 20% to 30%, except in unplanned gait termination. Significant maximal pressure increases were observed in the rearfoot during walking and in both the forefoot and rearfoot during planned gait termination. In addition, significant maximum pressure increases were shown in the lateral forefoot and midfoot during unplanned gait termination when weight was increased. Findings from the study indicated that excessive weight bearing could lead to a collapse of the arch structure and, therefore, increases in plantar loading. This may result in foot injuries, especially during unplanned gait termination.

scholarly journals The association between high-arched feet, plantar pressure distribution and body posture in young women

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Renata Woźniacka ◽  
Łukasz Oleksy ◽  
Agnieszka Jankowicz-Szymańska ◽  
Anna Mika ◽  
Renata Kielnar ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Shoulder Girdle ◽  
Body Posture ◽  
Whole Body ◽  
Longitudinal Arch ◽  
Plantar Pressure Distribution ◽  
Body Tissues ◽  
Foot Arch ◽  
Arch Index

AbstractThe aim of this study was to examine the effect of excessive feet arching (symmetrical and asymmetrical) on plantar pressure distribution and on the alignment of pelvis, spine and shoulder girdle. Eighty-one women (20–40 years old, 61 +/− 12 kg, 165 +/− 5 cm) were divided into 3 groups based on the foot arch index (Group 1 - with normally arched feet, Group 2 with one foot properly arched and the other high-arched, Group 3 with both feet high-arched). Plantar pressure distribution between the right and left foot for the forefoot, midfoot and rearfoot, respectively and body posture were assessed. A slight increase in longitudinal arch of the foot caused changes in the distribution of feet loads both between limbs and between the forefoot and rearfoot and also influenced the whole body. Asymmetrical high-arching of the feet resulted in asymmetry of lower limb load and in the height of the shoulder girdle. We have suggested that any alteration of the foot arch may be harmful to body tissues and should not be considered as correct. Due to the fact that slight increases in longitudinal arch of the foot are very common, they should be considered as a foot defect, and appropriate corrective exercises should be used to prevent forefoot overload and alterations in body posture.

scholarly journals Medial Longitudinal Arch Development of Children Aged 7 to 9 Years: Longitudinal Investigation

2016 ◽  
Vol 96 (8) ◽  
pp. 1216-1224 ◽  
Author(s):  
Jasper W.K. Tong ◽  
Pui W. Kong
Keyword(s):  
Mean Difference ◽  
Healthy Children ◽  
Medial Longitudinal Arch ◽  
Longitudinal Arch ◽  
Foot Loading ◽  
Arch Index ◽  
Post Hoc ◽  
The Relationship ◽  
Over Time

Abstract Background It is unclear at what age the medial longitudinal arch (MLA) of the foot becomes stable in children. The influence of footwear on MLA development also is unknown. Objective The purpose of this study was to examine the MLA development of children using a longitudinal approach. The relationship between wearing different types of footwear and MLA development also was explored longitudinally. Design This was a longitudinal cohort observational study. Methods The MLA of 111 healthy children (mean age=6.9 years, SD=0.3) was evaluated using 3 parameters (arch index [AI], midfoot peak pressure [PP], and maximum force [MF]) extracted from dynamic foot loading measurements at baseline (t0), 10-month follow-up (t1), and 22-month follow-up (t2). Information on footwear usage was surveyed. Linear mixed modeling was used to test for differences in MLA over time. Results The MLA of the children remained stable over time (AI: t0/t1/t2=0.25 [95% confidence interval (CI)=0.24, 0.26]/0.25 [95% CI=0.24, 0.26]/0.25 [95% CI=0.24, 0.26]; P=.95). When the children's sex was considered, the AI of boys decreased (higher arch) with age (0.26 [95% CI=0.24, 0.27]/0.25 [95% CI=0.24, 0.27]/0.25 [95% CI=0.23, 0.27]; P=.02). Boys also displayed a flatter MLA than girls at age 6.9 years (AI: mean difference=0.02 [95% CI=0.01, 0.04]; P=.02). At baseline, children who wore closed-toe shoes displayed the lowest MLA overall (AI: closed-toe shoes/sandals/slippers=0.26 [95% CI=0.24, 0.28]/0.24 [95% CI=0.23, 0.25]/0.25 [95% CI=0.24, 0.26]; P<.01). Children who used slippers at toddlers' age experienced a higher PP (flatter arch) in later childhood than those who wore sandals (mean difference=31.60 kPa [95% CI=1.44, 61.75]; post hoc P=.04). Limitations Information on the type of footwear worn was self-reported and, therefore, may be subjected to recall bias. Conclusions The MLA of children remained stable from 7 to 9 years of age. The child's sex and the type of footwear worn during childhood may influence MLA development.

Biomechanical Evaluation of the Efficacy of External Stabilizers in the Conservative Treatment of Acquired Flatfoot Deformity

2002 ◽  
Vol 23 (8) ◽  
pp. 727-737 ◽  
Author(s):  
Carl W. Imhauser ◽  
Nicholas A. Abidi ◽  
David Z. Frankel ◽  
Kenneth Gavin ◽  
Sorin Siegler
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Center Of Pressure ◽  
Lower Limbs ◽  
Quiet Standing ◽  
Medial Longitudinal Arch ◽  
Longitudinal Arch ◽  
Plantar Pressure Distribution ◽  
Flexible Flatfoot ◽  
Fresh Frozen

This study quantified and compared the efficacy of in-shoe orthoses and ankle braces in stabilizing the hindfoot and medial longitudinal arch in a cadaveric model of acquired flexible flatfoot deformity. This was addressed by combining measurement of hindfoot and arch kinematics with plantar pressure distribution, produced in response to axial loads simulating quiet standing. Experiments were conducted on six fresh-frozen cadaveric lower limbs. Three conditions were tested: intact-unbraced; flatfoot-unbraced; and flatfoot-braced. Flatfoot deformity was created by sectioning the main support structures of the medial longitudinal arch. Six different braces were tested including two in-shoe orthoses, three ankle braces and one molded ankle-foot orthosis. Our model of flexible flatfoot deformity caused the calcaneus to evert, the talus to plantarflex and the height of the talus and medial cuneiform to decrease. Flexible flatfoot deformity caused a pattern of medial shift in plantar pressure distribution, but minimal change in the location of the center of pressure. Furthermore, in-shoe orthoses stabilized both the hindfoot and the medial longitudinal arch, while ankle braces did not. Semi-rigid foot and ankle orthoses acted to stabilize the medial longitudinal arch. Based on these results, it was concluded that treatment of flatfoot deformity should at least include use of in-shoe orthoses to partially restore the arch and stabilize the hindfoot.

scholarly journals MORPHOMETRIC STUDY OF PLANTAR ARCH INDEX AND THE PREVALENCE OF FLATFOOT AMONG TRIBES

2020 ◽  
Vol 8 (4.1) ◽  
pp. 7782-7787
Author(s):  
Adjei-Antwi Collins ◽  
◽  
Chrissie Stansie Abaidoo ◽  
Nketsiah James ◽  
Joshua Tetteh ◽  
...  
Keyword(s):  
Prevalence Rate ◽  
The Other ◽  
Morphometric Study ◽  
Medial Longitudinal Arch ◽  
Foot Deformity ◽  
Pes Planus ◽  
Longitudinal Arch ◽  
Ethical Approval ◽  
Foot Arch ◽  
Arch Index

Flatfoot (pes planus), commonest foot deformity caused by the absence or collapse of the medial longitudinal arch. Flatfoot results in serious health problems and postural defects. It is highly variable in different populations with many factors associated. This study was conducted to find the plantar arch index and the prevalence of flatfoot and its relationship with tribes in Ghana. A total of 278 participants (172 males and 106 females) with ages ranging from 16 to 34 years were recruited for the study. Ethical approval and participants’ informed consent were sought prior to the study. Participants were drawn from the Akan, Ewe, Ga-Dangbe and other tribes (Dagomba, Dagabaa, Frafra, Gonja, Wale Wale etc). Foot imprints were taken from each participant using the ink method. The plantar arch index was calculated using the ratio of the width of the central and the heel region of the footprint. The mean right plantar arch index was higher than the left. The prevalence of flatfoot was 15.1% (6.1% unilateral left, 5.8% unilateral right and 3.2% bilateral). The prevalence rate was 15.7% in males and 14.1% in females. The prevalence rates reported for the Ga-Dangbes and Ewes were 30.8% and 23.6% respectively. On the other hand, both Akans and individuals belonging to the other tribes recorded the same prevalence rate of 13.7%. Flatfoot was found to be high among the Ga-Dangbes. Ethnicity as an external factor has a great role in influencing foot arch structure. Also, sex has an influence on the morphology of an individual’s foot. KEY WORDS: Flatfoot, Pes planus, Foot deformity, Medial Longitudinal Arch.

The Relationship Between the Hindfoot Angle and the Medial Longitudinal Arch of the Foot

2006 ◽  
Vol 27 (8) ◽  
pp. 623-627 ◽  
Author(s):  
Ulunay Kanatli ◽  
Rabet Gözil ◽  
Köksal Besli ◽  
Haluk Yetkin ◽  
Selcuk Bölükbasi
Keyword(s):  
Medial Longitudinal Arch ◽  
Longitudinal Arch ◽  
The Relationship

Use of Plantar Contact Area to Predict Medial Longitudinal Arch Height During Walking

2006 ◽  
Vol 96 (6) ◽  
pp. 489-494 ◽  
Author(s):  
Thomas G. McPoil ◽  
Mark W. Cornwall
Keyword(s):  
Contact Area ◽  
Sensor Data ◽  
Medial Longitudinal Arch ◽  
Arch Height ◽  
Plantar Surface ◽  
Longitudinal Arch ◽  
Surface Contact ◽  
Surface Contact Area ◽  
Arch Index ◽  
Vertical Height

A study was conducted to determine whether plantar surface contact area measures calculated from footprints collected during walking can be used to predict the height of the medial longitudinal arch. Thirty healthy women participated in the study. Arch height was determined by the distance from the navicular tuberosity to the floor and by the “bony” arch index. Dynamic plantar surface contact area was recorded using a pressure platform as the subjects walked across a 12-m walkway. The arch index and the total plantar surface contact area were determined from the pressure sensor data. The results indicated that plantar surface contact area could be used to estimate only approximately 27% of the height of the medial longitudinal arch as determined by navicular tuberosity height and the bony arch index. These findings demonstrate the inability of the clinician to predict the vertical height of the medial longitudinal arch on the basis of the amount of foot plantar surface area in contact with the ground during walking. (J Am Podiatr Med Assoc 96(6): 489-494, 2006)

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