scholarly journals Alteração do Ângulo de Pronação da Articulação Subtalar tem Influência na Distribuição de Pressão Plantar: Um Estudo Preliminar

2017 ◽  
Vol 19 (3) ◽  
pp. 316
Author(s):  
João Otacilio Libardoni dos Santos ◽  
Eliane Fátima Manfio ◽  
Felipe Pivetta Carpes ◽  
Ewertton De Souza Bezerra ◽  
Rudnei Palhano ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Subtalar Joint ◽  
Joint Angle ◽  
Frontal Plane ◽  
Control Group ◽  
Plantar Pressure Distribution ◽  
Maximum Angle ◽  
Pressure Plant ◽  
The Relationship

Several studies have investigated the relationship between heel pronation with plantar pressure during gait. With a degree of variability and inluence of the footwear, usually excessive pronation is associated with higher mechanical loads. However, larger loads are commonly associated with pronation. his study aims to compare the plantar pressure distribution among individuals with diferent pronation angles of the subtalar joint angle during gait with controlled speed. he maximum angle of the subtalar joint was determined by capturing images in the frontal plane and the pressure plant peaks were acquired by EMED pressure platform. he pronated group showed pressure plant peaks signiicantly higher in the lateral heel area (18%; p=0.031), medial heel (17%, p=0.034), lateral midfoot (30%; p=0.032) and medial midfoot (41%; p=0.018) when compared to the control group. Excessive pronation of the subtalar joint caused changes in plantar pressure distribution, and an increase in pressure plant peaks, especially in the heel and midfoot regions. his demonstrates the need for a speciic care of this population, mainly because the increased pressure plant peaks is related to pain in the feet and onset of injuries.

scholarly journals Gait Retraining With Visual Biofeedback Reduces Rearfoot Pressure and Foot Pronation in Recreational Runners

2021 ◽  
pp. 1-9
Author(s):  
Warlindo Carneiro da Silva Neto ◽  
Alexandre Dias Lopes ◽  
Ana Paula Ribeiro
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Control Group ◽  
Gait Retraining ◽  
Visual Biofeedback ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
Foot Pronation ◽  
Recreational Runners ◽  
Arch Index

Context: Running is a popular sport globally. Previous studies have used a gait retraining program to successfully lower impact loading, which has been associated with lower injury rates in recreational runners. However, there is an absence of studies on the effect of this training program on the plantar pressure distribution pattern during running. Objective: To investigate the short-term effect of a gait retraining strategy that uses visual biofeedback on the plantar pressure distribution pattern and foot posture in recreational runners. Design: Randomized controlled trial. Setting: Biomechanics laboratory. Participants: Twenty-four recreational runners were evaluated (n = 12 gait retraining group and n = 12 control group). Intervention: Those in the gait retraining group underwent a 2-week program (4 sessions/wk, 30 min/session, and 8 sessions). The participants in the control group were also invited to the laboratory (8 times in 2 wk), but no feedback on their running biomechanics was provided. Main Outcome Measures: The primary outcome measures were plantar pressure distribution and plantar arch index using a pressure platform. The secondary outcome measure was the foot posture index. Results: The gait retraining program with visual biofeedback was effective in reducing medial and lateral rearfoot plantar pressure after intervention and when compared with the control group. In the static condition, the pressure peak and maximum force on the forefoot and midfoot were reduced, and arch index was increased after intervention. After static training intervention, the foot posture index showed a decrease in the foot pronation. Conclusions: A 2-week gait retraining program with visual biofeedback was effective in lowering rearfoot plantar pressure, favoring better support of the arch index in recreational runners. In addition, static training was effective in reducing foot pronation. Most importantly, these observations will help healthcare professionals understand the importance of a gait retraining program with visual biofeedback to improve plantar loading and pronation during rehabilitation.

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.

scholarly journals Generalized Joint Laxity Associated With Increased Medial Foot Loading in Female Athletes

2009 ◽  
Vol 44 (4) ◽  
pp. 356-362 ◽  
Author(s):  
Kim D. Barber Foss ◽  
Kevin R. Ford ◽  
Gregory D. Myer ◽  
Timothy E. Hewett
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Joint Laxity ◽  
Maximum Force ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Plantar Pressure Distribution ◽  
Generalized Joint Laxity ◽  
The Relationship

Abstract The relationship between generalized joint laxity and plantar pressure distribution of the foot and the potential implications for lower extremity injury have not been studied.Context: To determine the relationship between generalized joint laxity and dynamic plantar pressure distribution. We hypothesized that individuals with greater generalized joint laxity, or hypermobility, would have greater dynamic medial midfoot pressure and loading during walking than nonhypermobile individuals.Objective: Case control.Design: Institutional biomechanics laboratory.Setting: Participants included 112 female soccer players between 11 and 21 years of age.Patients or Other Participants: Each participant was tested for generalized joint laxity using the Beighton and Horan Joint Mobility Index (BHJMI; range, 0–9) and was categorized as having either high (BHJMI score ≥4) or low (BHJMI score <4) generalized joint laxity. Peak pressure and maximum force were calculated from a dynamic, barefoot plantar pressure distribution system.Main Outcome Measure(s): Peak pressure and maximum force were greater in the 27 participants categorized as having high generalized joint laxity than in the 85 participants categorized as having low generalized joint laxity. The midfoot region exhibited greater loading in participants with high generalized joint laxity than in the other participants. We found an effect of BHJMI classification in the medial midfoot; peak pressure in the dominant (F1,109  =  11.262, P  =  .001) and nondominant (F1,109  =  14.32, P < .001) sides and maximum force in the dominant (F1,109  =  7.88, P  =  .006) and nondominant (F1,109  =  9.18, P  =  .003) sides were greater in the high generalized joint laxity group than in the low generalized joint laxity group.Results: Athletes classified as having high generalized joint laxity demonstrated increased midfoot loading. Delineation of risk factors for medial collapse of the foot, which include hypermobility in athletes, may help clinicians evaluate and prevent lower extremity injury with treatments, such as orthoses.Conclusions:

scholarly journals Comfortable and Convenient Turning Skill Assessment for Alpine Skiers Using IMU and Plantar Pressure Distribution Sensors

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 834
Author(s):  
Seiji Matsumura ◽  
Ken Ohta ◽  
Shin-ichiroh Yamamoto ◽  
Yasuharu Koike ◽  
Toshitaka Kimura
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Load Ratio ◽  
Skill Assessment ◽  
Simple Method ◽  
Plantar Pressure Distribution ◽  
Measurement Units ◽  
Alpine Skiers ◽  
Skill Evaluation ◽  
The Relationship

Improving ski-turn skills is of interest to both competitive and recreational skiers, but it is not easy to improve on one’s own. Although studies have reported various methods of ski-turn skill evaluation, a simple method that can be used by oneself has not yet been established. In this study, we have proposed a comfortable method to assess ski-turn skills; this method enables skiers to easily understand the relationship between body control and ski motion. One expert skier and four intermediate skiers participated in this study. Small inertial measurement units (IMUs) and mobile plantar pressure distribution sensors were used to capture data while skiing, and three ski-turn features—ski motion, waist rotation, and how load is applied to the skis—as well as their symmetry, were assessed. The results showed that the motions of skiing and the waist in the expert skier were significantly larger than those in intermediate skiers. Additionally, we found that the expert skier only slightly used the heel to apply a load to the skis (heel load ratio: approximately 60%) and made more symmetrical turns than the intermediate skiers did. This study will provide a method for recreational skiers, in particular, to conveniently and quantitatively evaluate their ski-turn skills by themselves.

The Relationship of the Heel Pad Compressibility and Plantar Pressure Distribution

2001 ◽  
Vol 22 (8) ◽  
pp. 662-665 ◽  
Author(s):  
Ulunay Kanatli ◽  
Haluk Yetkin ◽  
Aykin Simsek ◽  
Koksal Besli ◽  
Akif Ozturk
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Peak Pressure ◽  
Heel Pain ◽  
Heel Strike ◽  
Control Group ◽  
Heel Pad ◽  
Plantar Pressure Distribution ◽  
Compressibility Index ◽  
And Control

Loss of heel pad elasticity has been suggested as one of the possible explanations of heel pain. This study aimed to determine the effect of heel pad thickness and its compressibility to heel pressure distribution, in 47 (94 feet) normal subjects and 59 (94 feet) patients with heel pain, using radiological measurements and EMED-SF (Novel, Munich) plantar pressure distribution measurement system. Both heels of the patients and control group were radiographed with and without weight bearing. The ratio of the heel pad thickness in loading to unloading position was defined as “the heel pad compressibility index.” The plantar peak pressure of the heel was measured at heel strike phase of the gait cycle. The compressibility index for control and patient groups were found to be 0.60 and 0.69, respectively. The peak pressure under the heel pad was recorded to be 28.4 N/cm2 for patients and 31.7 N/cm2 for control group. No significant difference was found for heel pad compressibility index and heel pad pressures between patient and control groups (p>0.05). This study revealed that there is no relationship between heel pad compressibility and pressure distribution of the heel pad both in control and patient group. We feel the flexibility of the heel pad does not have any influence on heel pain syndromes.

GAIT DEVIATIONS IN CHILDREN WITH CLASSIC HIGH-FUNCTIONING AUTISM AND LOW-FUNCTIONING AUTISM

2016 ◽  
Vol 17 (03) ◽  
pp. 1750042 ◽  
Author(s):  
JOLANTA PAUK ◽  
NINA ZAWADZKA ◽  
AGNIESZKA WASILEWSKA ◽  
PAWEL GODLEWSKI
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
High Functioning Autism ◽  
Children With Autism ◽  
Control Group ◽  
Autistic Children ◽  
High Functioning ◽  
Exercise Treatment ◽  
Plantar Pressure Distribution ◽  
Low Functioning

The most significant symptoms of autism are abnormal movement patterns that can lead to the decrease of life quality. The purpose of the study was to compare quantitatively the gait strategy of the typical subjects, children with classic high-functioning autism (HFA), and children with low-functioning autism (LFA). Secondly, the comparison and the evaluation of main changes of plantar pressure parameters between groups were presented. The evaluation was carried out on 18 children with HFA, 10 children with LFA, and 30 age-matched children as a control group. A six camera motion capture system, two force plates and a pedobarograph were used to measure gait kinematics, joint kinetics, and pressure distribution under foot during walking. The analysis shows significant differences between children with HFA, LFA, and typical children in velocity, cadence, and magnitude of plantar pressure distribution. The magnitude of plantar pressure was reduced in children with autism under all anatomical masks, which was caused by plano-valgus deformity. Differences were also observed in joint angles and moments during gait cycle. Some of the results can be a source of important information about gait patterns in autistic children. Any exercise treatment prescribed for autistic children should focus on changing the patterns of plantar pressure distribution, which would be similar to patterns of typical children. However, the exercise treatment cannot be generalized due to the high inter-subject variability in children with autism.

scholarly journals Plantar Pressure Distribution in Female Olympic-Style Weightlifters

2020 ◽  
Vol 17 (8) ◽  
pp. 2669
Author(s):  
Arletta Hawrylak ◽  
Hanna Gronowska
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Dynamic Condition ◽  
National Level ◽  
Rank Correlation ◽  
Static Condition ◽  
Quiet Standing ◽  
Control Group ◽  
Plantar Pressure Distribution ◽  
Foot Posture

Background: The aim of this study was to investigate differences in static and dynamic plantar pressure and other foot geometry variables between female Olympic-style weightlifters and an age- and sex-matched control group. Methods: The study involved 24 national-level competitive weightlifters and 24 physical education students. Leg dominance was determined and baropodometry was used to assess plantar pressure and foot posture during quiet standing and walking. For all variables basic descriptive statistics were calculated (mean ± standard deviation). Student’s t test was used to compare the between-group differences. Spearman’s rank correlation coefficients were calculated to determine the association between BMI (Body Mass Index) and average and peak plantar pressure. Results: No significant differences were observed in plantar pressure distribution between the two groups. A moderate correlation was found between BMI and non-dominant limb peak and average plantar pressure in the group of weightlifters in the static condition and in the control group in the dynamic condition. Conclusions: Olympic-style weightlifting may affect plantar pressure distribution and foot posture in female weightlifters. BMI may also correlate with peak and average plantar pressure in this population. Further research is needed to determine if Olympic-style weightlifting may affect plantar pressure distribution and foot posture in female weightlifters.

Range of Motion and Plantar Pressure Evaluation for the Effects of Self-Care Foot Exercises on Diabetic Patients with and Without Neuropathy

2016 ◽  
Vol 106 (3) ◽  
pp. 189-200 ◽  
Author(s):  
Lale Cerrahoglu ◽  
Umut Koşan ◽  
Tuba Cerrahoglu Sirin ◽  
Aslihan Ulusoy
Keyword(s):  
Pressure Distribution ◽  
Range Of Motion ◽  
Plantar Pressure ◽  
Exercise Program ◽  
Exercise Group ◽  
Home Exercise ◽  
Control Group ◽  
Diabetic Patients ◽  
Plantar Pressure Distribution ◽  
Before And After

Background: We aimed to investigate whether a home exercise for self-care program that consists of range of motion (ROM), stretching, and strengthening exercises could improve ROM for foot joints and plantar pressure distribution during walking in diabetic patients to prevent diabetic foot complications. Methods: Seventy-six diabetic patients were recruited (38 with neuropathy and 38 without neuropathy). Neuropathy and nonneuropathy groups were randomly divided into a home exercise group (n = 19) and a control group (n = 19). Exercise groups performed their own respective training programs for 4 weeks, whereas no training was done in the control group. Total contact area and plantar pressure under six foot areas before and after the exercise program were measured. Ankle and first metatarsophalangeal joint ROM were measured before and after the exercise program. Results: In the exercise group, there were significant improvements in ROM for the ankle and first metatarsophalangeal joints (P < .001); static pedobarographic values showed significant reduction in right forefoot-medial pressure (P = .010); and significant decreases were seen in dynamic pedobarographic values of peak plantar pressure at the left forefoot medial (P = .007), right forefoot lateral (P = .018), left midfoot (P < .001), and right hindfoot (P = .021) after exercise. No significant positive or negative correlation was found between the neuropathy and nonneuropathy groups (P > .05). Conclusions: A home exercise program could be an effective preventive method for improving ROM for foot joints and plantar pressure distribution in diabetic patients independent of the presence of neuropathy.

Plantar Pressure Distribution Character of Diabetic Foot in Young Patients during Normal Gait

2011 ◽  
Vol 474-476 ◽  
pp. 1377-1379
Author(s):  
Ming Rong ◽  
Yao Dong Gu ◽  
Jian She Li
Keyword(s):  
Pressure Distribution ◽  
Diabetic Foot ◽  
Plantar Pressure ◽  
Young Patients ◽  
Control Group ◽  
The Novel ◽  
Time Integral ◽  
Normal Gait ◽  
Plantar Pressure Distribution ◽  
Pressure Time

This study aims to investigate and compare the influence of plantar loading variables during gait of patients with diabetic in young ages. Subjects were divided into the following two groups: diabetic foot, 56 subjects; control group, 52 subjects. Plantar pressure distribution was measured during barefoot gait using the Novel emed platform. Both midfoot and lateral forefoot regions’ peak pressure in the diabetic foot was higher than the normal foot. Also, diabetic foot group experienced significantly higher in pressure-time integral and contact time. Those variables provided an indication of plantar loading behavior over time, and other kinesiological factors like joint deformities and mobility can be investigated in further study.

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