Effect of medial arch support foot orthosis on plantar pressure distribution in females with mild-to-moderate hallux valgus after one month of follow-up

2014 ◽  
Vol 39 (2) ◽  
pp. 134-139 ◽  
Author(s):  
Maede Farzadi ◽  
Zahra Safaeepour ◽  
Mohammad E Mousavi ◽  
Hassan Saeedi
Keyword(s):  
Pressure Distribution ◽  
Hallux Valgus ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Foot Orthoses ◽  
First Metatarsal ◽  
Plantar Pressure Distribution ◽  
Before And After ◽  
Arch Support ◽  
Foot Orthosis

Background:Higher plantar pressures at the medial forefoot are reported in hallux valgus. Foot orthoses with medial arch support are considered as an intervention in this pathology. However, little is known about the effect of foot orthoses on plantar pressure distribution in hallux valgus.Objectives:To investigate the effect of a foot orthosis with medial arch support on pressure distribution in females with mild-to-moderate hallux valgus.Study design:Quasi-experimental.Methods:Sixteen female volunteers with mild-to-moderate hallux valgus participated in this study and used a medial arch support foot orthosis for 4 weeks. Plantar pressure for each participant was assessed using the Pedar-X®in-shoe system in four conditions including shoe-only and foot orthosis before and after the intervention.Results:The use of the foot orthosis for 1 month led to a decrease in peak pressure and maximum force under the hallux, first metatarsal, and metatarsals 3–5 ( p < 0.05). In the medial midfoot region, peak pressure, maximum force, and contact area were significantly higher with the foot orthosis than shoe-only before and after the intervention ( p = 0.00).Conclusion:A foot orthosis with medial arch support could reduce pressure beneath the hallux and the first metatarsal head by transferring the load to the other regions. It would appear that this type of foot orthosis can be an effective method of intervention in this pathology.Clinical relevanceFindings of this study will improve the clinical knowledge about the effect of the medial arch support foot orthosis used on plantar pressure distribution in hallux valgus pathology.

Plantar Pressure and Radiographic Changes to the Forefoot After the Austin Bunionectomy

2005 ◽  
Vol 95 (4) ◽  
pp. 357-365 ◽  
Author(s):  
Alan R. Bryant ◽  
Paul Tinley ◽  
Joan H. Cole
Keyword(s):  
Hallux Valgus ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Normal Values ◽  
Valgus Deformity ◽  
Pressure Measurements ◽  
First Metatarsal ◽  
Plantar Pressure Distribution ◽  
Hallux Valgus Deformity ◽  
Radiographic Measurements

We describe the effects of the Austin bunionectomy on plantar pressure distribution and radiographic measurements in the forefoot in 31 subjects (44 feet) with mild-to-moderate hallux valgus deformity and 36 control subjects (36 feet). Plantar pressure measurements before and 24 months after surgery showed peak pressure beneath the hallux reduced to normal values. Peak pressure measurements beneath the first, second, and third metatarsal heads in hallux valgus feet were relatively unchanged after surgery and remained higher than normal values. The operation produced significant decreases in mean preoperative radiographic measurements of hallux abductus, metatarsus primus varus, and first metatarsal protrusion distance in these patients to below-normal values. (J Am Podiatr Med Assoc 95(4): 357–365, 2005)

Comparison of plantar pressure distribution in patients with hallux valgus and healthy matched controls

2017 ◽  
Vol 22 (6) ◽  
pp. 1054-1059 ◽  
Author(s):  
Takashi Hida ◽  
Ryuzo Okuda ◽  
Toshito Yasuda ◽  
Tsuyoshi Jotoku ◽  
Hiroaki Shima ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Hallux Valgus ◽  
Plantar Pressure ◽  
Plantar Pressure Distribution

scholarly journals The effect of medial arch support over the plantar pressure and triceps surae muscle strength after prolonged standing

2015 ◽  
Vol 24 (3) ◽  
pp. 146-9 ◽  
Author(s):  
Hindun Saadah ◽  
Deswaty Furqonita ◽  
Angela Tulaar
Keyword(s):  
Muscle Strength ◽  
Contact Area ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Standing Position ◽  
Triceps Surae ◽  
Prolonged Standing ◽  
Triceps Surae Muscle ◽  
Before And After ◽  
Arch Support

Background: The activity with prolonged standing position is one of the causes of abnormalities in the lower leg and foot. The aim of this study is to discover the effect of medial arch support over the distribution of plantar pressure when standing and walking.Methods: This was an experimental study with pre- and post-design the strength of triceps surae muscle after prolonged standing, was also evaluated in an experimental study with pre- and post-design. Variables of plantar pressure measurement are the contact area and pressure peak were measured by using the Mat-scan tool. The measurement of the triceps surae muscle strength was done with a hand-held dynamometer, before and after using the medial arch support. Measurement was performed before and after working with prolonged standing position which took place about seven hours using the medial arch support inserted in the shoes. Data was analyzed using paired T-test.Results: There was a significant difference of peak pressure between standing (p = 0.041) and walking (p = 0.001). Whereas the contact area showed a significant decrease in the width of the contact area when standing (104.12 ± 12.42 vs 99.08 ± 10.21 p = 0.023). Whereas, the triceps surae muscle strength pre- and post-standing prolonged did not indicate a significant difference.Conclusion: There was decrease in peak pressure when standing and walking and decrease in contact area when standing on plantar after used of the medial arch support after prolonged standing.

scholarly journals The Combination of Modified Mitchell’s Osteotomy and Shortening Oblique Osteotomy for Patients with Rheumatoid Arthritis: An Analysis of Changes in Plantar Pressure Distribution

2021 ◽  
Vol 18 (19) ◽  
pp. 9948
Author(s):  
Hyunho Lee ◽  
Hajime Ishikawa ◽  
Tatsuaki Shibuya ◽  
Chinatsu Takai ◽  
Tetsuya Nemoto ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Pressure Distribution ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Metatarsophalangeal Joint ◽  
First Metatarsophalangeal Joint ◽  
Joint Deformity ◽  
Oblique Osteotomy ◽  
Plantar Pressure Distribution ◽  
Joint Preserving Surgery

The present study aims to evaluate changes in plantar pressure distribution after joint-preserving surgery for rheumatoid forefoot deformity. A retrospective study was performed on 26 feet of 23 patients with rheumatoid arthritis (RA) who underwent the following surgical combination: modified Mitchell’s osteotomy (mMO) of the first metatarsal and shortening oblique osteotomy of the lateral four metatarsals. Plantar pressure distribution and clinical background parameters were evaluated preoperatively and one year postoperatively. A comparison of preoperative and postoperative values indicated a significant improvement in the visual analog scale, Japanese Society for Surgery of the Foot scale, and radiographic parameters, such as the hallux valgus angle. A significant increase in peak pressure was observed at the first metatarsophalangeal joint (MTPJ) (0.045 vs. 0.082 kg/cm2; p < 0.05) and a significant decrease at the second and third MTPJs (0.081 vs. 0.048 kg/cm2; p < 0.05, 0.097 vs. 0.054 kg/cm2; p < 0.05). While overloading at the lateral metatarsal heads following mMO has been reported in previous studies, no increase in peak pressure at the lateral MTPJs was observed in our study. The results of our study show that this surgical combination can be an effective and beneficial surgical combination for RA patients with mild to moderate joint deformity.

Lower Extremity Jogging Mechanics in Young Female with Mild Hallux valgus

2015 ◽  
Vol 22 ◽  
pp. 37-47
Author(s):  
Dong Sun ◽  
Feng Ling Li ◽  
Yan Zhang ◽  
Chang Feng Li ◽  
Wen Lan Lian ◽  
...  
Keyword(s):  
Knee Joint ◽  
Lower Extremity ◽  
Pressure Distribution ◽  
Hallux Valgus ◽  
Plantar Pressure ◽  
Joint Angle ◽  
External Rotation ◽  
Normal Group ◽  
Knee Joint Angle ◽  
Plantar Pressure Distribution

The purpose of this current study was to measure the knee joint angle and plantar pressure distribution between hallux valgus group and normal group under jogging condition. To reveal relationship of plantar pressure distribution and knee joint angle. Investigated that lower extremity mechanics of jogging in young female with mild hallux valgus. Sixteen young, healthy females volunteered to take part in this study. Kinematic data from a three-dimensional motion analysis system and plantar pressure distribution from Pedar-X system were collected to describe lower extremity mechanics while hallux valgus subjects jogging at a natural speed. The results found that knee joint angle of hallux valgus in frontal and transverse plane was obviously different under jogging condition. In frontal plane, the initial state of adduction angle (control group (CO) = 1.73 °, hallux valgus group (HV) = 8.33 °) of two group was markedly different at the beginning of the support (0-10%). During jogging gait cycle, knee abduction angle peak of normal group was 8.46°, and knee adduction angle peak of hallux valgus group was 8.61°. In the transverse plane, knee external rotation angle in the initial state of normal group was 21.93° while knee external rotation angle of hallux valgus was 4.89°. The results of plantar pressure found that bearing pressure regions was offshore in hallux valgus group. These changes would affect the movement of knee joint, and it suggested that hallux valgus group have higher risk for knee osteoarthritis. These results also suggested that hallux valgus deformity has influence on knee joint. We cannot be ignored in the process of the research and therapeutic with hallux valgus.

Biomechanical Research on Plantar Pressure Distribution in Different Landing Condition

2011 ◽  
Vol 110-116 ◽  
pp. 4518-4521
Author(s):  
J.J. Chen ◽  
Jian She Li ◽  
Y.D. Gu
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Theoretical Basis ◽  
Sport Injury ◽  
Peak Stress ◽  
First Metatarsal ◽  
Plantar Pressure Distribution ◽  
Pressure Measure ◽  
State Stress ◽  
Sports Shoes

With the increase of the difficulty and intensity on competitive movement, the rate of sport injury will happen in training and competing frequently. The metatarsal is one of the most prone to injury part in the human body. The incidence of metatarsal injuries is rising in recently years. In this study, Pedar-X plantar pressure measure system and Novel emed pressure distribution measure plate were used in order to get the dynamics data in normal landing and inverted landing. The research concluded that: metatarsal peak stress had been transferred from the first metatarsal to the fifth metatarsal with increasing of varus angle. When the foot was in inverted state, stress distribution of metatarsal changed significantly. Lateral metatarsal played a major role in supporting function. Also, forefoot pressure distribution changed a lot in different functional sports shoes. The purpose is to provide the reliable correlative theoretical basis for improving sport equipments and security protection recommendations for people to engage in sports.

scholarly journals High-Intensity Running and Plantar-Flexor Fatigability and Plantar-Pressure Distribution in Adolescent Runners

2015 ◽  
Vol 50 (2) ◽  
pp. 117-125 ◽  
Author(s):  
François Fourchet ◽  
Luke Kelly ◽  
Cosmin Horobeanu ◽  
Heiko Loepelt ◽  
Redha Taiar ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
High Intensity ◽  
Contact Time ◽  
Plantar Flexor ◽  
Distance Runners ◽  
Fatigue Index ◽  
Plantar Pressure Distribution ◽  
Before And After ◽  
Mean Pressure

Context: Fatigue-induced alterations in foot mechanics may lead to structural overload and injury. Objectives: To investigate how a high-intensity running exercise to exhaustion modifies ankle plantar-flexor and dorsiflexor strength and fatigability, as well as plantar-pressure distribution in adolescent runners. Design: Controlled laboratory study. Setting: Academy research laboratory. Patients or Other Participants: Eleven male adolescent distance runners (age = 16.9 ± 2.0 years, height = 170.6 ± 10.9 cm, mass = 54.6 ± 8.6 kg) were tested. Intervention(s): All participants performed an exhausting run on a treadmill. An isokinetic plantar-flexor and dorsiflexor maximal-strength test and a fatigue test were performed before and after the exhausting run. Plantar-pressure distribution was assessed at the beginning and end of the exhausting run. Main Outcome Measure(s): We recorded plantar-flexor and dorsiflexor peak torques and calculated the fatigue index. Plantar-pressure measurements were recorded 1 minute after the start of the run and before exhaustion. Plantar variables (ie, mean area, contact time, mean pressure, relative load) were determined for 9 selected regions. Results: Isokinetic peak torques were similar before and after the run in both muscle groups, whereas the fatigue index increased in plantar flexion (28.1%; P = .01) but not in dorsiflexion. For the whole foot, mean pressure decreased from 1 minute to the end (−3.4%; P = .003); however, mean area (9.5%; P = .005) and relative load (7.2%; P = .009) increased under the medial midfoot, and contact time increased under the central forefoot (8.3%; P = .01) and the lesser toes (8.9%; P = .008). Conclusions: Fatigue resistance in the plantar flexors declined after a high-intensity running bout performed by adolescent male distance runners. This phenomenon was associated with increased loading under the medial arch in the fatigued state but without any excessive pronation.

Obesity is Associated With Altered Plantar Pressure Distribution in Older Women

2017 ◽  
Vol 33 (5) ◽  
pp. 323-329 ◽  
Author(s):  
Silvia Gonçalves Ricci Neri ◽  
André Bonadias Gadelha ◽  
Ana Luiza Matias Correia ◽  
Juscélia Cristina Pereira ◽  
Ana Cristina de David ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Older Women ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Normal Weight ◽  
Whole Body ◽  
Fat Percentage ◽  
Plantar Pressure Distribution ◽  
Peak Plantar Pressure ◽  
Gynoid Fat

Increased plantar pressure has been found to be related with greater risk of falling. Although there is evidence suggesting that obesity is linked to foot disorders, the association between obesity and plantar pressure of older adults has been poorly investigated. The purpose of this study was to examine the association between obesity and plantar pressure distribution and to explore its relationship with body fat distribution. Two hundred and eleven older women took part in this cross-sectional study. Body mass index was taken for obesity classification. Whole body, android, and gynoid fat percentage was assessed using dual-energy x-ray absorptiometry. Peak plantar pressure was evaluated during gait using an Emed AT-4 pressure platform. Obese volunteers generated greater peak pressure at midfoot (187.26 kPa) compared to both normal weight (128.52 kPa, p < .001) and overweight (165.74 kPa, p < .001). Peak plantar pressure at midfoot was also greater in overweight compared to normal weight (p < .001). At forefoot, peak pressure was higher in the obese (498.15 kPa) compared to normal weight volunteers (420.41 kPa, p = .007). Additionally, whole body, android, and gynoid fat percentage were significantly associated with peak pressure at midfoot and forefoot. Therefore, clinicians dealing with falls should consider the effect of increased body weight on plantar pressure.

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