Aluminum foot insoles reduce plantar forefoot pressure and increase foot comfort for motorcyclists

2018 ◽  
Vol 42 (6) ◽  
pp. 606-611 ◽  
Author(s):  
Israel Casado-Hernández ◽  
Ricardo Becerro-de-Bengoa-Vallejo ◽  
Daniel López-López ◽  
Antonio Gómez-Bernal ◽  
Marta Elena Losa-Iglesias
Keyword(s):  
Clinical Trial ◽  
Plantar Pressure ◽  
Clinical Relevance ◽  
Ethylene Vinyl Acetate ◽  
Maximum Pressure ◽  
Foot Pain ◽  
Foot Pressure ◽  
First Metatarsal ◽  
Repetitive Loading ◽  
And Control

Background: Foot pain and paresthesia are common in cycling, due to plantar pressure and repetitive loading. Objectives: The aim was to investigate the effect of foot insoles on plantar pressure of the foot in motorcycling, as well as self-reported comfort. Study design: A randomized crossover clinical trial. Methods: A flexible foot pressure mat (GP MobilData WiFi® Gebiomized®) with different sizes was utilized. Results: Maximum pressure values occurred predominantly in the hallux with 4.90 ± 1.19 N/cm2, followed by second and third metatarsal areas with 4.57 ± 0.73 N/cm2, followed by the first metatarsal area with 4.30 ± 0.96 N/cm2, and followed by the fourth and fifth metatarsal areas with 3.22 ± 0.89 N/cm2 when using the control foot insole and using aluminum foot insole, which reduces maximum pressure to 1.55 ± 0.34, 1.56 ± 0.75, 1.09 ± 0.43, and 1.07 ± 0.59 N/cm2, respectively ( p < 0.001), with an effect size of 3.828, 4.067, 4.315, and 2.847, respectively. Conclusion: The use of an aluminum foot insole significantly reduced maximum pressure during motorcycling. Clinical relevance In this study, an aluminum insole in a motorcycling boot was shown to decrease maximum pressure on the foot. Comfort was significantly higher than that from ethylene vinyl acetate or commercial boot inserts. This increased comfort and decreased pressure should result in increased safety and control for motorcyclists.

scholarly journals Finite Element Analysis of Cushioned Diabetic Footwear Using Ethylene Vinyl Acetate Polymer

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2261
Author(s):  
Mariyam J. Ghazali ◽  
Xu Ren ◽  
Armin Rajabi ◽  
Wan Fathul Hakim W. Zamri ◽  
Nadia Mohd Mustafah ◽  
...  
Keyword(s):  
Finite Element ◽  
Vinyl Acetate ◽  
Diabetic Foot ◽  
Plantar Pressure ◽  
Ethylene Vinyl Acetate ◽  
Foot Ulcers ◽  
Diabetic Foot Ulcers ◽  
Foot Pressure ◽  
Treatment And Prevention ◽  
Foot Model

With the development of societies, diabetic foot ulcers have become one of the most common diseases requiring lower extremity amputation. The early treatment and prevention of diabetic foot ulcers can considerably reduce the possibility of amputation. Using footwear to redistribute and relieve plantar pressure is one of the important measures for the treatment and prevention of diabetic foot ulcers. Thus, the evaluation and prediction of the distribution of plantar pressure play an important role in designing footwears. Herein, the finite element method was used to study plantar pressure under two kinds of foot models, namely, the skeletal structure foot model and the whole foot model, to explore the influence of human bones on the pressure of the soles of the feet and obtain accurate foot pressure. Simulation results showed that under the two models, the plantar pressure and the pressure from the footwear with ethylene vinyl acetate were all reduced. The total deformation demonstrated a slight increase. These stresses are very useful as they enable the design of suitable orthotic footwear that reduces the amount of stress in individuals with diabetic foot ulcers.

scholarly journals Effectiveness of Different Insoles on Plantar Pressure Distribution using Finite Element Simulation

2019 ◽  
Vol 8 (4) ◽  
pp. 9939-9944
Keyword(s):  
Finite Element ◽  
Pressure Distribution ◽  
Plantar Pressure ◽  
Bone Structure ◽  
Von Mises Stress ◽  
Foot Deformities ◽  
Maximum Pressure ◽  
Foot Pain ◽  
Plantar Pressure Distribution ◽  
Ansys Workbench

Finite Element to investigate different insole was developed to predict insole behavioral when pressure is applied onto the insole surface. Insole is a shoe insert that provides a cushion and support to human body so that it relieves foot pain and readjust human bone structure into correct posture. People who are suffering foot pain such as foot ulcer and foot deformities were caused by physical activity like walking and running. FE simulation are the best clinical tools used to investigate the effectiveness of the insole before fabricate. The major factors that affect the effectiveness of insoles are the type of material and the thickness based on the shape of insole. Only few of researchers had studied material and the thickness but none of them were studied the basic insole which is flat insole that almost commonly use in our daily life. Thus, this research is to investigate which is the best effective flat insole with different material and thickness by using Finite Element (FE), which using ANSYS Workbench V19.2 for analysis purpose. This research focused on post processing result which are Equivalent (von Mises) Stress, Shear Stress and Deformation. This research requires one male person weighs 64 kg to investigate the maximum pressure contact between foot and Plantar-Pressure Distribution (F-Scan) which is TekscanTM. Based from F-scan data, it has been found that the highest pressure occurs at calcaneus (heel part) which recorded 192KPa. The F-Scan result data has transferred into ANSYS Workbench V19.2 simulation Analysis for investigation. Based on the FE Analysis, it can be concluded that Polyurethane with 5mm thick flat insole is the most effective insole among all types of insoles.

scholarly journals Efficacy of customized insoles in the improvement of plantar pressure in patients with diabetic neuropathy: Protocol of a randomized and controlled clinical trial

2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Gabriel Farhat ◽  
Camila Marinelli Martins ◽  
Ricardo Zanetti Gomes ◽  
Letícia Carollyne Galvão ◽  
Rodolfo Martins Kravutschke ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Plantar Pressure ◽  
Randomized Clinical Trials ◽  
Demographic Data ◽  
Intervention Group ◽  
Secondary Outcome ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Control Groups ◽  
And Control

OBJECTIVE: To evaluate the influence of customized insoles in the plantar pressure of diabetes patients with neuropathy in comparison to the sham group. METHODS:  The work method, duly registered at the Registro Brasileiro de Ensaios Clínicos – REBEC (Clinical Trial Brazilian Register) (http://www.ensaiosclinicos.gov.br/) RBR-5NQK4K, includes a randomized, controlled, prospective, double-blinded clinical trial, with a sample of 46 volunteers that will be randomly randomized in a 1: 1 ratio to be referred to intervention and control groups. The intervention group will receive customized insoles, with a retrocapital bar and an ethyl vinyl acetate plaque (EVA) in the same shape as the retrocapital bar, in order to reduce the pressure on the forefoot. In the control group, flat insoles will be prepared without any therapeutic objective. This project was developed according to the standard protocol for randomized clinical trials (SPIRIT). Along with the clinical evaluation, demographic data of the sample will be collected to identify and confirm the presence of peripheral neuropathy, next, the pedobarographic will be evaluated, and finally, the patients will answer the FAAM questionnaire to assess foot functionality. The primary outcome will be analyzing pressure points in KiloPascal (kPa) in the patients’ feet through pedobarographic of the patients in the intervention and control groups. The secondary outcome will be the foot functionality in activities of daily living through the FAAM (Foot and Ankle Ability Measure), considering the volunteers in the initial evaluation, third and sixth months.  FINAL CONSIDERATIONS: Mainly, results of this study will show whether there is a structural alteration in the analysis of the plantar pressure due to the continuous use of insoles and present the evaluation of whether the use of therapeutic insoles improves the foot functionality of the same users when compared to sham insoles.

scholarly journals Effectiveness of a Psychoeducational Group Intervention Carried Out by Nurses for Patients with Depression and Physical Comorbidity in Primary Care: Randomized Clinical Trial

2021 ◽  
Vol 18 (6) ◽  
pp. 2948
Author(s):  
Antonia Raya-Tena ◽  
María Isabel Fernández-San-Martin ◽  
Jaume Martin-Royo ◽  
Rocío Casañas ◽  
Glòria Sauch-Valmaña ◽  
...  
Keyword(s):  
Primary Care ◽  
Clinical Trial ◽  
Depressive Symptoms ◽  
Group Intervention ◽  
Therapeutic Response ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Psychoeducational Group ◽  
One Year ◽  
And Control

The association between physical illness and depression implies a poorer management of chronic disease and a lower response to antidepressant treatments. Our study evaluates the effectiveness of a psychoeducational group intervention led by Primary Care (PC) nurses, aimed at patients of this kind. It is a randomized, multicenter clinical trial with intervention (IG) and control groups (CG), blind response variables, and a one year follow-up. The study included 380 patients ≥50 years of age from 18 PC teams. The participants presented depression (BDI-II > 12) and a physical comorbidity: diabetes mellitus type 2, ischemic heart disease, chronic obstructive pulmonary disease, and/or asthma. The IG (n = 204) received the psychoeducational intervention (12 weekly sessions of 90 min), and the CG (n = 176) had standard care. The patients were evaluated at baseline, and at 4 and 12 months. The main outcome measures were clinical remission of depressive symptoms (BDI-II ≤ 13) and therapeutic response (reduction of depressive symptoms by 50%). Remission was not significant at four months. At 12 months it was 53.9% in the IG and 41.5% in the CG. (OR = 0.61, 95% CI, 0.49–0.76). At 4 months the response in the IG (OR = 0.59, 95% CI, 0.44–0.78) was significant, but not at 12 months. The psychoeducational group intervention led by PC nurses for individuals with depression and physical comorbidity has been shown to be effective for remission at long-term and for therapeutic response at short-term.

scholarly journals Effect of 1 mg/kg oral prednisolone on biochemical analytes in ten dogs: a cross-over study

2021 ◽  
Author(s):  
Helena Pettersson ◽  
Carl Ekstrand ◽  
Anna Hillström ◽  
Inger Lilliehöök
Keyword(s):  
Clinical Relevance ◽  
Control Period ◽  
Iron Concentration ◽  
Oral Prednisolone ◽  
Reference Intervals ◽  
Specific Reference ◽  
Test Results ◽  
Prednisolone Treatment ◽  
Anti Inflammatory ◽  
And Control

AbstractPrednisolone is used for treatment of inflammatory, allergic, neoplastic, and immune-mediated diseases in dogs. As a glucocorticoid, prednisolone has biochemical effects, which may interfere with the interpretation of biochemistry test results. The aim of this study is to investigate the effects of prednisolone treatment in an anti-inflammatory dose on common biochemical analytes in dogs and to evaluate the clinical relevance of the changes. Ten beagle dogs, enrolled in a cross-over study, were treated with oral prednisolone (1 mg/kg 24 h) for 10 days. Blood samples were collected at day 0, 1, 3, 6, 9, 10, 12, 16, and 20. Data was analyzed using a general linear model with time and treatment as fixed factors. Pairwise comparisons were done between prednisolone and control period for each dog and sampling. Significant results were further evaluated for clinical relevance using laboratory-specific reference intervals and reference change values (RCVs), when available. Statistically significant changes were observed for ALP activity and iron concentration, which increased to levels exceeding the RCV, and several results were outside reference intervals. Phosphate and bile acids increased significantly, while amylase, lipase, and cholesterol decreased significantly, but with mean/median results remaining within reference intervals. Anti-inflammatory prednisolone treatment did not induce significant changes in ALT, GLDH, GGT, cPLI, glucose, or calcium. Treatment with an anti-inflammatory dose of prednisolone induced changes in several analytes. Only the increases in ALP and iron were of such magnitude that they are expected to affect the clinical interpretation of test results.

Outcome of lymph node tuberculosis management with conventional treatment with and without prednisolone

2021 ◽  
pp. 004947552098474
Author(s):  
Arjuman Sharmin ◽  
Ali Hossain ◽  
Nazmul Islam ◽  
Zakir H Sarker ◽  
Sheikh S Hossain ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Lymph Node ◽  
Complete Resolution ◽  
Conventional Treatment ◽  
Symptomatic Improvement ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Open Label ◽  
Lymph Node Tuberculosis ◽  
And Control

The outcome of lymph node tuberculosis (LNTB) management with conventional anti-tubercular treatment alone is unsatisfactory. We conducted a randomised open-label controlled clinical trial in the Department of Respiratory Medicine in Government Institute of Dhaka, Bangladesh from April 2017 to March 2019. Compared with controls, 54 patients of LNTB received category 1 anti-tubercular treatment with additional prednisolone after randomisation. Complete resolution in 21/54 (75%) and 7 (26.9%), symptomatic improvement in 26 (92.9%) and 22 (84.6%) and complications in 11 (39.28%) and 16 (61.53%) were observed in the treatment and control group, respectively. Thus, we recommend the use of steroids in this setting.

Effect of Proximal Dome and Distal Chevron Osteotomies on Plantar Pressures and Radiographic and Functional Outcomes in Hallux Valgus Surgery: A Retrospective Analysis

2021 ◽  
Vol 111 (3) ◽  
Author(s):  
Kadir Ilker Yildiz ◽  
Abdulhamit Misir ◽  
Turan Bilge Kizkapan ◽  
Mustafa Cukurlu ◽  
Canan Gonen Aydin
Keyword(s):  
Hallux Valgus ◽  
Inclination Angle ◽  
Plantar Pressure ◽  
Functional Outcomes ◽  
First Metatarsal ◽  
Pressure Point ◽  
Radiographic Outcomes ◽  
Metatarsal Angle ◽  
Dome Osteotomy ◽  
Pressure Changes

Background No detailed comparative studies have been performed regarding plantar pressure changes between proximal dome and distal chevron osteotomies. This study aimed to compare radiographic and plantar pressure changes after distal chevron and proximal dome osteotomies and to investigate the effect of radiographic and plantar pressure changes on clinical outcomes. Methods This study included 26 and 22 patients who underwent distal chevron and proximal dome osteotomies, respectively. Visual analog scale (VAS) and American Orthopaedic Foot & Ankle Society (AOFAS) forefoot scores were used to evaluate pain and functional outcomes. Hallux valgus angle, intermetatarsal angle, talar–first metatarsal angle, and calcaneal inclination angle were measured in the evaluation of radiographic outcomes. Preoperative and postoperative plantar pressure changes were evaluated. Results There were no statistically significant differences between the two groups in age, body mass index, or AOFAS forefoot and VAS scores. In the proximal dome group, the pressure measurement showed significant lateralization of the maximal anterior pressure point in the forefoot (P &lt; .001). In addition, the postoperative calcaneal inclination angle was significantly lower (P = .004) and the talar–first metatarsal angle was significantly higher (P &lt; .001) in the proximal dome group. Postoperative transfer metatarsalgia was observed in one patient (3.8%) in the distal chevron group and five (22.7%) in the proximal dome group (P &lt; .05). Conclusions Proximal dome osteotomy led to more lateralization of the maximum anterior pressure point, decreased calcaneal inclination angle and first metatarsal elevation, and related higher transfer metatarsalgia.

scholarly journals Convalescent Plasma for COVID-19: A multicenter, randomized clinical trial

2020 ◽  
Author(s):  
Cristina Avendano-Sola ◽  
Antonio Ramos-Martinez ◽  
Elena Munez-Rubio ◽  
Belen Ruiz-Antoran ◽  
Rosa Malo de Molina ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Mechanical Ventilation ◽  
Randomized Clinical Trial ◽  
Strong Dependence ◽  
Standard Of Care ◽  
Ordinal Scale ◽  
Control Group ◽  
Standard Of Care Treatment ◽  
And Control ◽  
To Receive

Background: Passive immunotherapy with convalescent plasma (CP) is a potential treatment for COVID-19 for which evidence from controlled clinical trials is lacking. Methods: We conducted a multi-center, randomized clinical trial in patients hospitalized for COVID-19. All patients received standard of care treatment, including off-label use of marketed medicines, and were randomized 1:1 to receive one dose (250-300 mL) of CP from donors with IgG anti-SARS-CoV-2. The primary endpoint was the proportion of patients in categories 5, 6 or 7 of the COVID-19 ordinal scale at day 15. Results: The trial was stopped after first interim analysis due to the fall in recruitment related to pandemic control. With 81 patients randomized, there were no patients progressing to mechanical ventilation or death among the 38 patients assigned to receive plasma (0%) versus 6 out of 43 patients (14%) progressing in control arm. Mortality rates were 0% vs 9.3% at days 15 and 29 for the active and control groups, respectively. No significant differences were found in secondary endpoints. At inclusion, patients had a median time of 8 days (IQR, 6-9) of symptoms and 49,4% of them were positive for anti-SARS-CoV-2 IgG antibodies. Conclusions: Convalescent plasma could be superior to standard of care in avoiding progression to mechanical ventilation or death in hospitalized patients with COVID-19. The strong dependence of results on a limited number of events in the control group prevents drawing firm conclusions about CP efficacy from this trial. (Funded by Instituto de Salud Carlos III; NCT04345523).

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