Assessment of Plantar Pressure in Hindfoot Relief Shoes of Different Designs

Hahn, Thomas W.; Carl, Hans-Dieter; Jendrissek, Andreas; Brem, Matthias; Swoboda, B.; Rummel, Philipp von; Pauser, Josef

doi:10.7547/0003-0538-104.1.19

Cited by 6 publications

(10 citation statements)

References 21 publications

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“…But the pressure intensity size of feet is closely linked to plantar comfortable degree (Bruckner et al, 2010), namely the plantar comfortable degree is higher when the average pressure intensity at sole is less. But it does not indicate that it is better if the pressure intensity at sole distribution is more even (Bailys et al, 2016), because the plantar rugged hook face is formed by long-term evolution, and the pressure and pressure intensity needing to be undertaken by different parts in the face are also different (Kaisers et al, 2010); for example, the rear feet and heel are located below the shank bone, and pressure of the whole body reaches feet through the shank bone; so they need to undertake more pressure and pressure intensity than the front feet, and the plantar injury risk will be added on the contrary if it is forced to evenly distribute pressure intensity at sole (Hahn et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Study on Impact of Hardness of Sole on Force on Feet during Active Falling

Ke¹,

Xie²,

Sun³

et al. 2018

Proceedings of the 2018 International Conference on Sports, Arts, Education and Management Engineering (SAEME 2018)

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The purpose is to study effect of sole on force on feet as an additional factor when human body actively falls at different heights. Methods: 12 male subjects respectively wore three pairs of shoes with different cushioning performances and fell actively at the heights 20cm, 40cm and 60cm. Ground reaction force, pressure distribution on feet, and angle of ankle motion during impact from falling were acquired and analyzed synchronously. Results: Compared with ordinary soles, softer soles can effectively reduce the peak impact force during the impact process, prolong the time interval between the first peak and the second peak of the impact force, and at the same time reduce the maximum and maximum intensity of pressure on the plant, increase the area where plant is in contact with sole, and reduce range of motion of ankle. Conclusions: In comparison with sports shoes with ordinary sole, wearing sports shoes with softer sole can effectively reduce intensity of plantar peak pressure, intensity of mean pressure, peak pressure, and play a good role in shock absorption. Therefore, the softer sole of sports shoes can effectively relieve the burden on the feet, enhance the comfort of the feet, and reduce the chance of sports injuries. 361

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Section: Discussionmentioning

confidence: 99%

Study on Impact of Hardness of Sole on Force on Feet during Active Falling

Ke¹,

Xie²,

Sun³

et al. 2018

Proceedings of the 2018 International Conference on Sports, Arts, Education and Management Engineering (SAEME 2018)

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“…The limitations of our study are recognized as follows: First, partial weight bearing was defined as a limitation of loads on the limb as assessed by dynamic pedobarography. Although this definition is widely accepted and pedobarography has been established to monitor foot loads in context of limited weight bearing [32,33,35,43], there is no clear-cut evidence that foot load actually is a sufficient surrogate parameter for weight bearing, in particular, for the intraarticular joint conditions. Dynamic pedobarography was chosen for the assessment of foot loading because it has been established as a useful adjunct to clinical research for the recognition of plantar force conditions in a non-invasive way [44][45][46].…”

Section: Study Limitationsmentioning

confidence: 99%

“…Dynamic pedobarography was chosen for the assessment of foot loading because it has been established as a useful adjunct to clinical research for the recognition of plantar force conditions in a non-invasive way [44][45][46]. Due to the ability to record consecutive steps and cycles in one measurement, insole-based pedobarography has become an important tool for the recognition of plantar force conditions in the context of partial weight bearing after total hip arthroplasty [47], wearing forefoot or hindfoot relief shoes [43,48] or performing rehabilitation exercises [35]. However, future investigations assessing intraarticular load conditions are needed to confirm findings which were obtained in this study.…”

Section: Study Limitationsmentioning

confidence: 99%

Assessing Foot Loads in Continuous Passive Motion (CPM) and Active Knee Joint Motion Devices

Stolz

Grim

Lutter

et al. 2019

Sportverletz Sportschaden

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Background Continuous passive motion (CPM) and active knee joint motion devices are commonly applied after various surgical procedures. Despite the growing use of active motion devices, there is a paucity of data comparing plantar loads between the different mobilization techniques. The aim of this study was to investigate foot loads during knee joint mobilization in continuous passive and active knee joint motion devices and to compare this data to the physiological load of full weight-bearing. Patients/Material and Methods Fifteen healthy participants (7 women and 8 men, 25 ± 3 years, 66 ± 6 kg, 175 ± 10 cm, BMI 21.9 ± 2) were recruited. Plantar loads were measured via dynamic pedobarography using a continuous passive motion device (ARTROMOT-K1, ORMED GmbH, Freiburg, Germany) and an active motion device (CAMOped, OPED AG, Cham, Switzerland), each with a restricted range of motion of 0-0-90° (ex/flex) and free ROM for the knee joint. For the active motion device, cycles were performed at four different resistance levels (0-III). Data were assessed using the pedar® X system (Novel Inc., Munich, Germany), which monitors loads from the foot-sole interface. Force values were compared between motion devices and normal gait, which served as the reference for conditions of full weight-bearing. P-values of < 0.05 were considered statistically signiﬁcant. Results Normal gait revealed peak forces of 694 ± 96 N, defined as 100 %. The CPM device produced plantar forces of less than 1.5 N. Using the active motion device in the setting of 0-0-90° produced foot loads of < 1.5 N (resistance 0-II) and 3.4 ± 9.3 N with a resistance of III (p < 0.001). Conditions of free ROM resulted in foot loads of 4.5 ± 4.5 N (resistance 0), 7.7 ± 10.7 N (resistance I), 6.7 ± 10.4 (resistance II) and 6.7 ± 6.9 N with a resistance of III (p < 0.001), corresponding to 0.6 %, 1.1 %, 1.0 % and 1.0 % of full weight-bearing, respectively. Conclusion Motion exercises of the knee joint can be performed both with passive and active devices in accordance with strict weight-bearing restrictions, which are often recommended by surgeons. Also, active motion devices can be used when the ankle joint or foot have to be offloaded. Further studies assessing intraarticular joint load conditions have to be performed to confirm the findings obtained in this study.

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“…8 Heel-unloading orthoses (HUOs) including the Settner shoe, Mars shoe, M ünchen shoe, and Graffin orthosis in Japan (Figure 1) make patients with calcaneus fractures walk after surgery by shifting the load to the forefoot and midfoot and achieve early mobilization. [9][10][11][12] A prior study also reported that the heelunloading brace for calcaneal fracture improved the range of motion (ROM) of the ankle joint. 13 However, few studies have validated the efficacy and biomechanics of the Graffin orthosis after surgery.…”

Section: Introductionmentioning

confidence: 99%

Do heel-unloading orthoses improve clinical outcomes in patients after surgical treatment of calcaneal fracture? A propensity-matched, multicenter analysis of the TRON database

Kagami

Tokutake

Takegami

et al. 2022

Prosthetics &Amp; Orthotics International

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Background:Postoperative protocols after surgical treatment of calcaneal fracture have not been standardized to date. There are only a few reports on the efficacy of heel-unloading orthoses (HUOs; Mars shoe, Graffin orthosis), and thier efficacy is uncertain.Objectives:The purpose of this study was to compare postoperative radiologic and clinical outcomes in patients with calcaneal fractures who used Graffin orthosis.Study design:Multicenter retrospective study.Methods:We finally extracted 182 patients from a database of the Trauma Research Group of Nagoya and divided them into two groups: group C (underwent casting or splinting only) and group O (Graffin orthosis was used). A propensity score algorithm was used to match group C to group O in a 1:1 ratio. We evaluated American Orthopaedic Foot and Ankle Society (AOFAS) score at three and six months after surgery and at final follow-up. Differences in reduction of the Böhler angle between the two groups were evaluated radiographically. All data were analyzed with a t-test or Fisher’s exact test. P < .05 was considered statistically significant.Results:The AOFAS score 3 months after surgery in group O was significantly higher than that in group C (69.57 vs. 77.22; P = .004). However, there were no statistically significant differences between group C vs. group O in AOFAS scores at 6 months after surgery and at final follow-up (81.92 vs. 85.67 and 89.18 vs. 88.13; P = .087 and 0.597, respectively). There was no significant statistical difference in the reduction of the Böhler angle (5.07 vs. 5.89; P = .529).Conclusions:At 3 months postoperatively, the orthosis group showed predominantly better functional results. We believe that heel-unloading orthoses are useful for patients who require an early return to work and to daily life.

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Assessment of Plantar Pressure in Hindfoot Relief Shoes of Different Designs

Cited by 6 publications

References 21 publications

Study on Impact of Hardness of Sole on Force on Feet during Active Falling

Study on Impact of Hardness of Sole on Force on Feet during Active Falling

Assessing Foot Loads in Continuous Passive Motion (CPM) and Active Knee Joint Motion Devices

Do heel-unloading orthoses improve clinical outcomes in patients after surgical treatment of calcaneal fracture? A propensity-matched, multicenter analysis of the TRON database

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