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.

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.

scholarly journals Plantar Pressure Distribution among Older Persons with Different Types of Foot and Its Correlation with Functional Reach Distance

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Aisyah Mohd Said ◽  
Maria Justine ◽  
Haidzir Manaf
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Older Persons ◽  
Rank Correlation ◽  
Community Dwelling ◽  
Human Foot ◽  
Functional Reach ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
Post Hoc

Background.Changes in biomechanical structures of human foot are common in the older person, which may lead to alteration of foot type and plantar pressure distribution. We aimed to examine how foot type affects the plantar pressure distribution and to determine the relationship between plantar pressure distribution and functional reach distance in older persons.Methods.Fifty community-dwelling older persons (age:69.98±5.84) were categorized into three groups based on the Foot Posture Index. The plantar pressure (max⁡P) and contact area were analyzed using Footscan® RSScan platform. The Kruskal-Wallis test was used to compare the plantar pressure between foot types and Spearman’s correlation coefficient was used to correlate plantar pressure with the functional reach distance.Results.There were significant differences ofmax⁡Pin the forefoot area across all foot types. The post hoc analysis found significantly lowermax⁡Pin the pronated foot compared to the supinated foot. A high linear rank correlation was found between functional reach distance andmax⁡Pof the rearfoot region of the supinated foot.Conclusions.These findings suggested that types of the foot affect the plantar maximal pressure in older persons with functional reach distance showing some associations.

Assessing Plantar Pressure Distribution in Children with Flatfoot Arch

2014 ◽  
Vol 104 (6) ◽  
pp. 622-632 ◽  
Author(s):  
Jolanta Pauk ◽  
Mikhail Ihnatouski ◽  
Bijan Najafi
Keyword(s):  
Mathematical Model ◽  
Pressure Distribution ◽  
Body Mass ◽  
Plantar Pressure ◽  
Reaction Force ◽  
Retest Reliability ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
Test Retest Reliability ◽  
Pressure Magnitude

Background Flatfoot, or pes planus, is one of the most common foot posture problems in children that may lead to lower-extremity pain owing to a potential increase in plantar pressure. First, we compared plantar pressure distribution between children with and without flatfoot. Second, we examined the reliability and accuracy of a simple metric for characterization of foot posture: the Clarke angle. Third, we proposed a mathematical model to predict plantar pressure magnitude under the medial arch using body mass and the Clarke angle. Methods Sixty children with flatfoot and 33 aged-matched controls were recruited. Measurements included in-shoe plantar pressure distribution, ground reaction force, Clarke angle, and radiography assessment. The measured Clarke angle was compared with radiographic measurements, and its test-retest reliability was determined. A mathematical model was fitted to predict plantar pressure distribution under the medial arch using easy-to-measure variables (body mass and the Clarke angle). Results A high correlation was observed between the Clarke angle and radiography measurements (r > 0.9; P < 10−6). Excellent between- and within-day test-retest reliability for Clarke angle measurement (intraclass correlation coefficient, >0.9) was observed. Results also suggest that pressure magnitude under the medial arch can be estimated using the Clarke angle and body mass (R2 = 0.95; error, <0.04 N/cm2 [2%]). Conclusions This study suggests that the Clarke angle is a practical, reliable, and sensitive metric for quantification of medial arch height in children and could be recommended for research and clinical applications. It can also be used to estimate plantar pressure under the medial arch, which, in turn, may assist in the timely intervention and prognosis of prospective problems associated with flatfoot posture.

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.

The Effect of Moderate Running on Foot Posture Index and Plantar Pressure Distribution in Male Recreational Runners

2013 ◽  
Vol 103 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Elena Escamilla-Martínez ◽  
Alfonso Martínez-Nova ◽  
Beatriz Gómez-Martín ◽  
Raquel Sánchez-Rodríguez ◽  
Lourdes María Fernández-Seguín
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Metatarsal Head ◽  
Heel Strike ◽  
Foot Posture Index ◽  
Posture Index ◽  
Plantar Pressure Distribution ◽  
Heel Contact ◽  
Before And After ◽  
Foot Posture

Background: Fatigue due to running has been shown to contribute to changes in plantar pressure distribution. However, little is known about changes in foot posture after running. We sought to compare the Foot Posture Index before and after moderate exercise and to relate any changes to plantar pressure patterns. Methods: A baropodometric evaluation was made, using the FootScan platform (RSscan International, Olen, Belgium), of 30 men who were regular runners and their foot posture was examined using the Foot Posture Index before and after a 60-min continuous run at a moderate pace (3.3 m/sec). Results: Foot posture showed a tendency toward pronation after the 60-min run, gaining 2 points in the Foot Posture Index. The total support and medial heel contact areas increased, as did pressures under the second metatarsal head and medial heel. Conclusions: Continuous running at a moderate speed (3.3 m/sec) induced changes in heel strike related to enhanced pronation posture, indicative of greater stress on that zone after physical activity. This observation may help us understand the functioning of the foot, prevent injuries, and design effective plantar orthoses in sport. (J Am Podiatr Med Assoc 103(2): 121–125, 2013)

The effects of calf muscles fatigue on dynamic plantar pressure distribution in normal foot posture and flexible flatfoot: A case-control study

2021 ◽  
pp. 1-9
Author(s):  
Muge Kirmizi ◽  
Yesim Salik Sengul ◽  
Salih Angin
Keyword(s):  
Pressure Distribution ◽  
Contact Area ◽  
Plantar Pressure ◽  
Maximum Force ◽  
Mixed Design ◽  
Plantar Pressure Distribution ◽  
Flexible Flatfoot ◽  
Before And After ◽  
Foot Posture ◽  
Calf Muscles

BACKGROUND: Flexible flatfoot is associated with altered plantar pressure distribution, but it is not clear how muscle fatigue affects plantar pressure characteristics in flexible flatfoot and normal foot. OBJECTIVE: To investigate the effects of calf muscles fatigue on plantar pressure variables in flexible flatfoot and normal foot. METHODS: Twenty-five people with flexible flatfoot and twenty-five people with normal foot were included. The unilateral heel-rise test was used to induce calf muscles fatigue. Plantar pressure variables were collected during preferred walking immediately before and after fatigue. The two-way mixed-design ANOVA was used to determine the main effect of fatigue and the interaction between foot posture and fatigue. RESULTS: Fatigue causes medialization of the contact area under the forefoot and the maximum force under the heel and forefoot (p< 0.05). When examining the differences in the effects of fatigue between groups, the contact area under the medial heel increased with fatigue in flexible flatfoot but decreased in normal foot; moreover, the contact area and maximum force under the midfoot and the maximum force under the third metatarsal decreased with fatigue in flexible flatfoot but increased in normal foot (p< 0.05). CONCLUSIONS: Calf muscles fatigue causes medialization of the maximum force and contact area. Especially the midfoot was affected differently by fatigue in flexible flatfoot and normal foot.

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 Assessment of Long-Term Badminton Experience on Foot Posture Index and Plantar Pressure Distribution

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Ping Huang ◽  
Minjun Liang ◽  
Feng Ren
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Male And Female ◽  
Foot Posture Index ◽  
Posture Index ◽  
Time Integral ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
Force Time ◽  
The Right

This study was aimed to analyze the foot posture index and plantar pressure characteristics of fifteen badminton players and fifteen controls. The hypothesis was that people with the habit of playing badminton would be significantly different with nonplaying people in foot posture index, 3D foot surface data, and plantar pressure distribution. Nine regions of plantar pressure were measured by using the EMED force platform, and badminton players showed significantly higher peak pressure in the hallux (p=0.003), medial heel (p=0.016), and lateral heel (p=0.021) and force-time integral in the hallux (p=0.002), medial heel (p=0.026), and lateral heel (p=0.015). There is no asymmetrical plantar pressure distribution between the left foot and the right foot of players. The mean foot posture index values of male and female badminton players are 5.2 ± 1.95 and 5.7 ± 1.15, respectively, and comparatively, those values of male and female controls are 1.5 ± 1.73 and 1.7 ± 4.16, respectively. This study shows that significant differences in morphology between people with the habit of playing badminton and people without that habit could be taken as a factor for a future study in locomotion biomechanics characteristics and foot shape of badminton players and in a footwear design in order to reduce injury risks.

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 &lt; .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 &lt; .001), and right hindfoot (P = .021) after exercise. No significant positive or negative correlation was found between the neuropathy and nonneuropathy groups (P &gt; .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.

scholarly journals THE RELATIONSHIP OF THE FOOT AND ANKLE STRUCTURE WITH OVERUSE INJURIES IN LICENSED FOOTBALLERS, A PROSPECTIVE COHORT

2020 ◽  
Author(s):  
ali sahillioglu ◽  
lale cerrahoglu
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Joint Hypermobility ◽  
Overuse Injuries ◽  
Pressure Measurements ◽  
Foot And Ankle ◽  
Ankle Eversion ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
One Year

The main purpose of this study was to compare the values determined in the clinical examination of the foot and ankle and the plantar pressure measurements of the foot in athletes who developed an overuse-type disability and in athletes who did not develop overuse-type disability, and was to find factors that might predispose to disability, during the one-year follow-up. 100 licensed football players were included in the study. Presence of joint hypermobility, foot posture assessment, ankle and first metatarsophalangeal (MTP) joint range of motion (ROM) measurements, pedobarographic plantar pressure assessment of foot was carried out. Then, the footballers were followed for 12 months for the development of new foot and ankle overuse injuries and the clinical and pedobarographic data of the footballers with at least one injury were compared with the group without injury. We found asymmetric pressure distribution between the preferred and non-preferred foot in the group who had an injury in the pedobarographic static foot plantar pressure measurements (p = .040). When we compared the ROM values of footballers who had an injury and footballers who did not have an injury, we found a significant limitation in the group that suffered an injury, in the ankle eversion, first MTP joint dorsiflexion and ankle plantarflexion degrees (p = .029, p = .023, p=.044, respectively). These findings suggest that impairments in foot plantar pressure distribution and limitations in ankle and foot joint ROM may be risk factors for the development of foot and ankle overuse injury.

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