The use of textiles and materials for orthopedic footwear insoles

Yick, Kit Lun; Tse, Chi-Yung

doi:10.1016/b978-0-12-821606-4.00012-0

Cited by 5 publications

(7 citation statements)

References 52 publications

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“…Soft material with lower density of Nora Lunalastik EVA (hardness of 23 Shore A) performed better than the rigid material with higher density of Nora Lunalight A fresh (hardness of 58 Shore A) on offloading plantar pressure in this study. The result is in line with the finding of Tang et al 56 , low density ethylene-vinyl acetate (i.e., Nora Lunalastik EVA) is generally soft and provides good cushioning, shock absorption during walk 30 . In general, the softness of insole material relates with better performance on plantar pressure offloading in this study.…”

Section: Discussionsupporting

confidence: 90%

“…This might be due to their extra softness (hardness of 18 Shore A) which facilitates force absorption during gait 31 . The usage of Polyurethane (i.e., PORON Medical 4708) in orthopaedic insoles not only provides resistance to ground reaction forces during gait, but also high resistance to bottoming out under pressure, shock and shear due to its good cushioning and pressure redistribution properties 30 . Soft material with lower density of Nora Lunalastik EVA (hardness of 23 Shore A) performed better than the rigid material with higher density of Nora Lunalight A fresh (hardness of 58 Shore A) on offloading plantar pressure in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Some clinical studies suggest that usage of suitable orthotic footwear or insoles that offer proper arch support can effectively offload plantar pressure [22][23][24][25] , which is an essential intervention to prevent the risk of DFUs [26][27][28][29] . Soft materials can readily be moulded for a custom fit to offer excellent wear comfort and cushioning of the feet 30 , while a composite structure constructed of soft and rigid materials have a superior performance in reducing the amount of plantar pressure 31,32 . In addition, the use of an arch support with an insole has been proven to offload plantar pressure when compared to an insole without an arch support for patients with diabetes [33][34][35][36][37] .…”

mentioning

confidence: 99%

“…The type of foam material used is also subjectively determined based on the experience of individual practitioners. Cellular polymer such as polyurethane foam (e.g., PORON) is an open-celled material with excellent cushioning properties 16,30,31 , while ethylene-vinyl acetate (e.g., nora) is moldable, resilient and elastic 30 so that insoles that use this material can prevent callus formation and tissue damage because the material exerts less frictional force and shearing stress to the skin 16,30,[35][36][37][38] ; Polyethylene (e.g., Pe-Lite) offers good cushioning and shock absorption 39 . Lo et al 38 tested the physical properties of those insole materials (e.g., polyurethane, ethylene-vinyl acetate, and Polyethylene), but lacked practical clinical evidence for plantar pressure offloading.…”

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confidence: 99%

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Effects of Contoured Insoles with Different Materials on Plantar Pressure Offloading in Diabetic Elderly during Gait

Shi

Yick

et al. 2022

Preprint

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To investigate the effect of contoured insoles constructed of different insole materials, including Nora Lunalastik EVA, Nora Lunalight A fresh, Pe-Lite, and PORON® Medical 4708 with Langer Biomechanics longitudinal PPT® arch pads on offloading plantar pressure on the foot of the elderly with Type 1 or 2 diabetes during gait. Twenty-two elderly with Type 1 or 2 diabetes participated in the study. Their plantar pressure was measured by using an insole measurement system, while the participants walked 10 m in their bare feet or used each experimental insole in random order. The plantar surface was divided into four specific regions including the toes, forefoot, midfoot, and rearfoot. The mean peak pressure (MPP) and pressure-time integral (PTI) of ten steps with or without wearing one of the four insoles were analyzed on the dominant foot and the four specific plantar regions. After completion of the activities, the participants scored each insole from 1 (the least comfortable) to 10 (the most comfortable). The analysis of variance (ANOVA) factor of the insoles had significant effects on the MPP (P < 0.001) and PTI (P = 0.004) in the dominant foot during gait. Pairwise comparison results showed that the MPP and PTI in the dominant foot were significantly lower (P < 0.001) with PORON® Medical 4708 than barefoot, Nora Lunalight A fresh, and Pe-Lite. Additionally, the insole materials had a significant effect for the forefoot (P < 0.001) and rearfoot (P < 0.001) in terms of the MPP and PTI compared with the barefoot condition during gait. Regardless of the plantar region, the MPP and PTI values were the lowest when PORON® Medical 4708 was used as the insole material among four insole materials. Meanwhile, a significantly lower MPP and PTI can be found in the forefoot and rearfoot with the use of the four experimental insoles when compared with barefoot. The soft insole materials (i.e., PORON® medical 4708 and Nora Lunalastik EVA) had a better performance than the rigid insole materials (i.e., Nora Lunalight A fresh, and Pe-Lite) on plantar pressure offloading for diabetic elderly.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Effects of Contoured Insoles with Different Materials on Plantar Pressure Offloading in Diabetic Elderly during Gait

Shi

Yick

et al. 2022

Preprint

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“…Splinting and walking casts help the patient of planter fascitis to keep his foot in neutral position overnight.It reduces the pressure on heel at heel strike.Silicon insole is a noninvasive treatment option which add comfort and provide soothing effect to heal as it absorbs about 50% of shock during walking. Some studies suggests that silicon insole provide good relief to patient with planter fascitis that the custom made orthotics and stretching exercises do alone and it is one of most effective treatment option for increasing functional status and decreasing pain in patient with planter fascitis pain [7,8].…”

Section: Introductionmentioning

confidence: 99%

A comparative study to analyze the effect of planter fascia stretch and heel pad with moist heat in the patients of planterfascitis

Razzaq¹,

Arif²,

Tahir³

et al. 2021

Glob J Medical Clin Case Rep

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Background: This study investigated the effect of planter fascia stretch and heel pad with moist heat in the patients of planterfascitis among subjects aged 20-40. Planter fascia is a thickened fi brous sheet of connective tissue which begins from medial tubercle on undersurface of calcaneus and fans out joining to the metatarsophalangeal joints plates to form longitudinal foot arch. Manual active stretching or passive stretching of planter fascia and Achilles tendon are effective treatment option for patient with planter fasciitis. Aims and objectives: objectives of this study were to see the effect of planter fascia stretch and heel pad with moist heat in the patients of planterfascitis. Material and methodology:This study was quasi experimental study. It took samples by convenient method from 80 subjects among Faisalabad private hospitals community. The study was completed in the duration of 3 months. Data was conducted through convenient sampling from Faisalabad private hospitals. This study explored the effect of planter fascia stretch and heel pad with moist heat on subjects aging 20-40 years old. Subjects were allocated to group A (n=40) and group B (n=40). Group A received treatment as planter fascia stretch and group B received treatment as heel pad with moist heat. Follow up were taken after 4 weeks in 3 month duration study.Results: Statistical Analysis Data were analyzed using SPSS version 23.0. Intragroup comparison of differences between pre and post intervention scores of FFI and FADI was analyzed using independent T Test. The results were considered statistically signifi cant if p values were less than 0.05). No statistically signifi cant difference was observed in pre intervention score between the groups on FADI (p = 0.211) and FFI (p = 0.365), but, statistically signifi cant difference was observed between all the groups on post intervention score with respect to FADI (p=0.000) and FFI (p=.001) as analyzed by independent t test. Conclusion:After applying the entire treatments and measuring pre and post value it conducted that planter fascia stretch has more signifi cant effect on planterfascitis than heel pad with moist heat.

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Effects of contoured insoles with different materials on plantar pressure offloading in diabetic elderly during gait

Shi

Yick

et al. 2022

Sci Rep

Self Cite

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To investigate the effect of contoured insoles constructed of different insole materials, including Nora Lunalastik EVA, Nora Lunalight A fresh, Pe-Lite, and PORON Medical 4708 with Langer Biomechanics longitudinal PPT arch pads on offloading plantar pressure on the foot of the elderly with Type 1 or 2 diabetes during gait. Twenty-two elderly with Type 1 or 2 diabetes participated in the study. Their plantar pressure was measured by using an insole measurement system, while the participants walked 10 m in their bare feet or used each experimental insole in random order. The plantar surface was divided into four specific regions including the toes, forefoot, midfoot, and rearfoot. The mean peak pressure (MPP) and pressure–time integral (PTI) of ten steps with or without wearing one of the four insoles were analyzed on the dominant foot and the four specific plantar regions. After completion of the activities, the participants scored each insole from 1 (the least comfortable) to 10 (the most comfortable). The analysis of variance (ANOVA) factor of the insoles had significant effects on the MPP (P < 0.001) and PTI (P = 0.004) in the dominant foot during gait. Pairwise comparison results showed that the MPP and PTI in the dominant foot were significantly lower (P < 0.001) with PORON Medical 4708 than barefoot, Nora Lunalight A fresh, and Pe-Lite. Additionally, the insole materials had a significant effect for the forefoot (P < 0.001) and rearfoot (P < 0.001) in terms of the MPP and PTI compared with the barefoot condition during gait. Regardless of the plantar region, the MPP and PTI values were the lowest when PORON Medical 4708 was used as the insole material among four insole materials. Meanwhile, a significantly lower MPP and PTI can be found in the forefoot and rearfoot with the use of the four experimental insoles when compared with barefoot. The soft insole materials (i.e., PORON medical 4708 and Nora Lunalastik EVA) had a better performance than the rigid insole materials (i.e., Nora Lunalight A fresh, and Pe-Lite) on plantar pressure offloading for diabetic elderly.

show abstract

The use of textiles and materials for orthopedic footwear insoles

Cited by 5 publications

References 52 publications

Effects of Contoured Insoles with Different Materials on Plantar Pressure Offloading in Diabetic Elderly during Gait

Effects of Contoured Insoles with Different Materials on Plantar Pressure Offloading in Diabetic Elderly during Gait

A comparative study to analyze the effect of planter fascia stretch and heel pad with moist heat in the patients of planterfascitis

Effects of contoured insoles with different materials on plantar pressure offloading in diabetic elderly during gait

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