scholarly journals A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2892
Author(s):  
Tao Zheng ◽  
Zhiyong Yu ◽  
Jin Wang ◽  
Guodong Lu
Keyword(s):  
Pressure Sensor ◽  
Measurement Method ◽  
Flat Foot ◽  
Flexible Membrane ◽  
Index Measurement ◽  
Pressure Area ◽  
Foot Arch ◽  
Low Efficiency ◽  
Arch Index ◽  
Element Association

The foot arch index is an important index to evaluate the health of human feet and the biomechanics line, aiming at addressing the shortcomings of the low efficiency and slow speed of manual foot arch index measurement; in this work, an automatic foot arch index measurement method based on a flexible membrane pressure sensor was proposed. The distribution of plantar pressure data was obtained from the flexible membrane pressure sensor and converted into a digital image. The 8-neighborhood correlation pixel method was proposed to remove the interference of isolated noise points. In order to remove the toes’ data without affecting the foot sole data, the row element association algorithm was proposed. The front and back endpoints of the foot were automatically located to obtain the foot length, and the foot arch index was also automatically obtained based on the foot arch pressure area. Whether it was a high arch foot, flat foot or normal foot, the method proposed in this paper could accurately and quickly distinguish them. The prototype was developed, and its feasibility and validity were verified by a series of tests.

Arch Index as a Predictor of Pes Planus

2005 ◽  
Vol 95 (3) ◽  
pp. 273-276 ◽  
Author(s):  
Patrick S. Igbigbi ◽  
Boniface C. Msamati ◽  
Macfenton B. Shariff
Keyword(s):  
Early Warning ◽  
Warning Sign ◽  
Foot Pain ◽  
Pes Planus ◽  
Early Warning Sign ◽  
Foot Arch ◽  
Arch Index ◽  
Functional Defects

We determined the arch index of able-bodied indigenous Kenyan and Tanzanian individuals free of foot pain by using their dynamic footprints to classify the foot arch type and determine the prevalence of pes planus according to a previously described method. Males had a significantly higher arch index than females in both groups, and the prevalence of pes planus in Kenyans was 432 per 1,000 population, the highest ever documented and twice as high as that in Tanzanians (203 per 1,000 population). The arch index is useful in determining the prevalence of pes planus and possibly predicting pathologic foot conditions, and it may serve as an early warning sign of structural and functional defects of the foot in a given population. (J Am Podiatr Med Assoc 95(3): 273–276, 2005)

scholarly journals Non-destructive residual pressure self-measurement method for the sensing chip of optical Fabry-Perot pressure sensor

2017 ◽  
Vol 25 (25) ◽  
pp. 31937 ◽  
Author(s):  
Xue Wang ◽  
Shuang Wang ◽  
Junfeng Jiang ◽  
Kun Liu ◽  
Xuezhi Zhang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Measurement Method ◽  
Residual Pressure ◽  
Fabry Perot ◽  
Non Destructive

scholarly journals Correlation of Obesity and Flat-Foot in Haemophilic Adolescents in Karad

2021 ◽  
Vol 10 (27) ◽  
pp. 2007-2011
Author(s):  
Shruti Raphael Dsouza ◽  
Gauri Ramesh Gangane ◽  
Mandar Ramesh Malawade
Keyword(s):  
Central Region ◽  
Negative Impact ◽  
Weight Bearing ◽  
Type A ◽  
Primary Component ◽  
Obese People ◽  
Predisposing Factor ◽  
Flat Foot ◽  
High Prevalence ◽  
Arch Index

BACKGROUND Haemophilic patients are more prone to obesity, due to physical inactivity which is a predisposing factor for structural and functional deformities. In obese people, long term loading has negative impact on lower limb and foot, which causes deformities like flat-foot. In foot, the primary component responsible for absorption and dissipation of forces is medial longitudinal arch and in flat-foot this arch is collapsed. Flat-foot causes pain and discomfort during weight bearing activities. In Haemophilic patients, obesity and flat-foot lead to further postural complications. As no study has been conducted on this topic before, we decided to study on this. The objectives of this study were to assess obesity, flat-foot and co relate obesity and flat-foot in Haemophilic adolescents. METHODS Height and weight of participants were measured to calculate BMI. Total 36 participants were chosen for this study. The subjects were assessed for flat-foot by using Staheli’s Plantar Arch Index. Footprints were taken to calculate the plantar index. The Staheli’s Plantar Arch Index was measured by dividing the width of central region by width of heel region on footprint, which was calculated as: a line tangent to the medial edge of forefoot and heel region, then a perpendicular line was drawn medially to laterally from mid - point of tangent line in central region of footprint (A) and similarly another perpendicular was drawn from heel region (B). The plantar index was then calculated by dividing value A with value B. RESULTS Flat-foot was seen in 25 % population having BMI between 33 - 35. Our data also suggested that age affects the medial arch of foot, the elder population showed increased percentage of flat-foot than the younger group. Individuals with type A haemophilia had increased percentage of flat-foot when compared with type B haemophiliacs, as type A haemophilia is considered severe type. CONCLUSIONS The results show that there is high prevalence of flat-foot in haemophilic patients, this requires rehabilitation and can help prevent further complications. KEY WORDS Haemophilia, Obesity, Flat-foot

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.

scholarly journals EFFECT OF DIFFERENT FOOT ARCH SUPPORTS ON DYNAMIC BALANCE IN NURSING PROFESSIONALS WITH FLATFOOT

2017 ◽  
Vol 6 (2) ◽  
pp. 14-19
Author(s):  
Summaiya Naseem ◽  
Sumaira Imran Farooqui ◽  
Ali Farhad ◽  
Ishrat Parveen ◽  
Tayyaba Jabeen
Keyword(s):  
Dynamic Balance ◽  
Medial Longitudinal Arch ◽  
Age Group ◽  
Normal Position ◽  
Flat Foot ◽  
Foot Arch ◽  
Group A ◽  
Group B ◽  
Nursing Professionals ◽  
Global Population

BACKGROUND Flat foot, depletion of medial longitudinal arch affects almost 20% of adult global population; approximately 9-14% of schools going children are flat foot making the gender wise prevalence of about 13% girls and 7% boys, 11.25% population of age group between 18-25 years are diagnosed as flat footed. AIM The focus of this study is to device best possible strategy for the nurses to overcome their deformity and live as normal and pain free professional life as possible by providing foot supports that bring foot arches to normal or near normal position. METHOD The subjects were divided into two groups. Group A and Group B. Group A was asked to wear medial wedge support and group B was prescribed heel support for 3 weeks. RESULTS Result shows that both the orthosis are useful in forming the arch of foot, improving the dynamic balance and relieving the symptoms of flatfoot but medial wedge is found to be more efficient as compared to heel support.

scholarly journals PERBEDAAN KECEPATAN LARI 40 METER PADA ANAK LAKI-LAKI USIA 10-12 TAHUN DENGAN NORMAL FOOT DAN FLAT FOOT DI SEKOLAH DASAR NEGERI 8 DAUH PURI

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Ni Made Maya Risna Ayu ◽  
Anak Ayu Nyoman Trisna Narta Dewi ◽  
Agung Wiwiek Indrayani
Keyword(s):  
T Test ◽  
Flat Foot ◽  
Cross Sectional ◽  
Arch Index

Kemampuan lokomotor yang penting dimiliki oleh anak untuk melakukan aktivitas sehari-hari adalah kecepatan lari. Kecepatan lari dipengaruhi oleh berbagai kondisi, salah satunya yaitu kondisi flat foot. Kondisi flat foot mengakibatkan terjadinya hiperpronasi forefoot yang akan mengurangi kecepatan lari. Tujuan penelitian ini untuk mengetahui perbedaan kecepatan lari 40 meter pada anak laki-laki usia 10-12 tahun dengan normal foot dan flat foot. Rancangan penelitian menggunakan cross sectional analitik dengan total sampel 48 orang dan dilakukan pada bulan Maret 2019. Penelitian dilakukan dengan memeriksa bentuk arkus pedis normal foot dan flat foot menggunakan Staheli Arch Index dan mengukur kecepatan lari menggunakan lintasan lari sepanjang 40 meter. Teknik analisis data yang dilakukan yaitu uji normalitas menggunakan Shapiro Wilk Test dan uji hipotesis  Independent T Test  untuk mengetahui perbedaan nilai kecepatan lari pada kelompok normal foot dan flat foot. Hasil Independent T Test mendapatkan nilai p=0,003 (p<0,05) yang berarti terdapat perbedaan kecepatan lari 40 meter yang signifikan pada kelompok normal foot dan flat foot. Hasil penelitian juga menunjukkan nilai rerata kecepatan lari pada kelompok normal foot dan flat foot masing masing 8,18 ± 0,61 dan 8,87 ± 0,88. Simpulan penelitian ini adalah terdapat perbedaan kecepatan lari 40 meter pada anak laki-laki usia 10-12 tahun dengan normal foot dan flat foot, dimana kelompok normal foot memiliki kecepatan yang lebih tinggi dibandingkan kelompok flat foot Kata Kunci: Flat Foot, Normal Foot, Kecepatan Lari 40 meter, Usia 10-12 Tahun, Staheli Arch Index

Reliability of a New Method to Determine Foot Arch Height for Clinicians

2019 ◽  
Vol 109 (3) ◽  
pp. 187-192
Author(s):  
James A. Charles ◽  
Clare Mignot ◽  
Herbert F. Jelinek
Keyword(s):  
Gold Standard ◽  
Routine Clinical Practice ◽  
Arch Height ◽  
Linear Modeling ◽  
Important Indicator ◽  
Non Invasive ◽  
Foot Arch ◽  
Arch Index ◽  
Post Hoc ◽  
Processing Steps

Background: Arch height is an important indicator of risk of foot pathology. The current non-invasive gold standard based on footprint information requires extensive pre-processing. Methods used to obtain arch height that are accurate and easier to use are required in routine clinical practice. Methods: The proposed arch index diagonals (AId) method for determining the arch index (AI) reduces the complexity of the preprocessing steps. All footprints were first prepared as required by the Cavanagh and Rodgers method for determining the AI and then compared to the proposed diagonals method. Results were classified according to the Cavanagh and Rodgers cut-off values into three groups of low, normal and high AI. ANOVA and Tukey's post hoc tests were applied to identify significant differences between AI groups. Linear modeling was applied to determine the fit of the new AId method compared to the Cavanagh and Rodgers AI. Results: One hundred and ninety-six footprints were analyzed. The ANOVA indicated significant differences between the groups for AId (F1,194=94.49, p&lt;0.0001) and the Tukey post hoc tests indicated significant differences between the pair-wise comparisons (p&lt;0.001). Linear modeling indicated that the AId ratio classified more footprints in the high arch group compared to Cavanagh and Rodgers results (R2=32%, p&lt; 0.01). Intra- and inter-rater correspondence was above 90% and confirmed that the AId results provided a better indication of arch height. Conclusions: The proposed method simplifies current processing steps to derive the arch height.

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