The ground reaction force thresholds for detecting postural stability in participants with and without flat foot

Sung, Paul S.

doi:10.1016/j.jbiomech.2015.11.004

Cited by 13 publications

(9 citation statements)

References 39 publications

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“…Morphologic and mechanical properties of the plantar fascia may be important factors affecting the plantar pressure distribution because the primary task of the plantar fascia is to stabilize the foot arches (McKeon et al, 2015). Studies (Tas and Cetin, 2019a) also show that there is a significant positive correlation between plantar pressure distribution and the thickness of plantar fascia. Higher plantar pressure may lead to plantar fascia hypertrophy.…”

Section: Discussionmentioning

confidence: 99%

“…Flatfoot is a common foot posture abnormality, with the highest incidence of 78% ( Sung, 2016 ), and is characterized by a low medial longitudinal arch ( Pehlivan et al, 2009 ). Flatfoot can be divided into rigid flatfoot and flexible flatfoot.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al (2019a,b) found that people who used forefoot strike were more likely to suffer from plantar fasciitis. Tas and Cetin (2019a) focused on the relationship between plantar pressure distribution and the morphology and mechanical properties of plantar fascia. Welte et al (2021) revealed the effect of plantar fascia extensibility on the windlass mechanism of plantar fascia.…”

Section: Introductionmentioning

confidence: 99%

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Morphology and Mechanical Properties of Plantar Fascia in Flexible Flatfoot: A Noninvasive In Vivo Study

Qian

Zheng

et al. 2021

Front. Bioeng. Biotechnol.

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Plantar fascia plays an important role in human foot biomechanics; however, the morphology and mechanical properties of plantar fascia in patients with flexible flatfoot are unknown. In this study, 15 flexible flatfeet were studied, each plantar fascia was divided into 12 positions, and the morphologies and mechanical properties in the 12 positions were measured in vivo with B-mode ultrasound and shear wave elastography (SWE). Peak pressures under the first to fifth metatarsal heads (MH) were measured with FreeStep. Statistical analysis included 95% confidence interval, intragroup correlation coefficient (ICC1,1), one-way analysis of variance (one-way ANOVA), and least significant difference. The results showed that thickness and Young’s modulus of plantar fascia were the largest at the proximal fascia (PF) and decreased gradually from the proximal end to the distal end. Among the five distal branches (DB) of the fascia, the thickness and Young’s modulus of the second and third DB were larger. The peak pressures were also higher under the second and third MH. This study found a gradient distribution in that the thickness and Young’s modulus gradient decreased from the proximal end to the distal end of plantar fascia in the longitudinal arch of flexible flatfeet. In the transverse arch, the thickness and Young’s modulus under the second and third DB were larger than those under the other three DB in flexible flatfoot, and the peak pressures under the second and third MH were also larger than those under the other three MH in patients with flexible flatfoot. These findings deepen our understanding of the changes of biomechanical properties and may be meaningful for the study of pathological mechanisms and therapy for flexible flatfoot.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphology and Mechanical Properties of Plantar Fascia in Flexible Flatfoot: A Noninvasive In Vivo Study

Qian

Zheng

et al. 2021

Front. Bioeng. Biotechnol.

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“…It is present in children, targets 10-25% of adults, and can be disastrous for patients as the foot problems prevalence has been reported to be from 46% to 80% in both clinical and institutional situations. This leads to several injuries, often accompanied by pain affecting gait pattern and speed, balance, and decreasing function, consequently increasing fall risk [1- 3,33,[36][37][38] The purpose of the present study was to characterize the gait kinematics during the entire gait cycle of subjects with FF conditions. Comparative observations of lower extremity kinematics during a walking task were performed between individuals with FF compared to those with NF.…”

Section: Discussionmentioning

confidence: 99%

Gait Kinematics Analysis of Flatfoot Adults

et al. 2021

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Background: Foot postural alignment has been associated with altered gait pattern. This study aims to investigate gait kinematic differences in flatfoot subjects’ regarding all lower limb segments compared to neutral foot subjects. Methods: A total of 31 participants were recruited (age: 23.26 yo ± 4.43; height: 1.70 m ± 0.98; weight: 75.14 kg ± 14.94). A total of 15 subjects were integrated into the flatfoot group, and the remaining 16 were placed in the neutral foot group. All of the particpants were screened using the Navicular Drop Test and Resting Calcaneal Stance Position test to characterize each group, and results were submitted to gait analysis using a MOCAP system. Results: Significant kinematic differences between groups were found for the ankle joint dorsiflexion, abduction, and internal and external rotation (p < 0.05). Additionally, significant differences were found for the knee flexion, extension, abduction, and external rotation peak values (p < 0.001). Significant differences were also found for the hip flexion, extension, external rotation, pelvis rotation values (p < 0.02). Several amplitude differences were found concerning ankle abduction/adduction, knee flexion/extension and abduction/adduction, hip flexion/extension and rotation, and pelvis rotation (p < 0.01). Conclusion: Flatfooted subjects showed kinematic changes in their gait patterns. The impact on this condition on locomotion biomechanical aspects is clinically essential, and 3D gait biomechanical analysis use could be advantageous in the early detection of health impairments related to foot posture.

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“…Individual variations between older adults might lead to different compensatory responses and should be elucidated to establish fall prevention strategies. Several studies reported that an analysis of the one-leg standing test via a motion capture system could be used to determine balance strategies in older adults with LBP [4][5][6][7][8]. However, a comprehensive tool for quantifying kinematic and kinetic changes during one-leg standing is still needed to enhance evidence-based practice, prevent fall injuries, and identify factors affecting proprioception and posture.…”

Section: Introductionmentioning

confidence: 99%

The Quantified Indices for Compensatory Patterns for Low Back Pain and Outcome Measures

Sung¹,

Danial²

2017

Innovations in Spinal Deformities and Postural Disorders

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The quantification of balance stability is valuable to a number of populations, including older adults with low back pain (LBP). Investigations into postural stability and oneleg standing should be performed to integrate balance performance using kinematic and kinetic indices. The comparison of postural control between older adults with LBP and healthy older adults might contribute to a further understanding of postural adaptations, especially when considering visual condition. The one-leg standing test would highlight the differences in kinematic and kinetic stabilities between groups. Because the eyes-closed condition results in significantly decreased spinal stability, the normalized kinematic and kinetic indices could be utilized to compare postural integration as well as proprioceptive responses. Older adults with LBP demonstrated higher lumbar spine stability in the eyes-open condition, which might be due to a possible pain avoiding strategy from the standing limb. Clinicians need to consider both kinetic and kinematic indices and visual condition when addressing lumbar spine stability. Quantified indices for compensatory patterns might provide further understanding of optimal injury prevention and rehabilitation strategies for individuals with LBP.

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The ground reaction force thresholds for detecting postural stability in participants with and without flat foot

Cited by 13 publications

References 39 publications

Morphology and Mechanical Properties of Plantar Fascia in Flexible Flatfoot: A Noninvasive In Vivo Study

Morphology and Mechanical Properties of Plantar Fascia in Flexible Flatfoot: A Noninvasive In Vivo Study

Gait Kinematics Analysis of Flatfoot Adults

The Quantified Indices for Compensatory Patterns for Low Back Pain and Outcome Measures

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