scholarly journals Effect of Plano-Valgus Foot on Lower-Extremity Kinematics and Spatiotemporal Gait Parameters in Children of Age 5–9

Diagnostics ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 2
Author(s):  
Anna Boryczka-Trefler ◽  
Małgorzata Kalinowska ◽  
Ewa Szczerbik ◽  
Jolanta Stępowska ◽  
Anna Łukaszewska ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Sagittal Plane ◽  
Dynamic Condition ◽  
Reaction Force ◽  
Vertical Component ◽  
Dynamic Correction ◽  
Flat Foot ◽  
Gait Parameters ◽  
Flat Feet ◽  
Arch Index

Aim of the study was to see how a definition of the flexible flat foot (FFF) influences the results of gait evaluation in a group of 49 children with clinically established FFF. Objective gait analysis was performed using VICON system with Kistler force platforms. The gait parameters were compared between healthy feet and FFF using two classifications: in static and dynamic conditions. In static condition, the ink footprints with Clarke’s graphics were used for classification, and in dynamic condition, the Arch Index from Emed pedobarograph while walking was used for classification. When the type of the foot was based on Clarke’s graphics, no statistically significant differences were found. When the division was done according to the Arch Index, statistically significant differences between flat feet and normal feet groups were found for normalized gait speed, normalized cadence, pelvic rotation, ankle range of motion in sagittal plane, range of motion of foot progression, and two parameters of a vertical component of the ground reaction force: FZ2 (middle of stance phase) and FZ3 (push-off). Some statically flat feet function well during walking due to dynamic correction mechanisms.

The evaluation of modified foot orthosis on muscle activity and kinetic in a subject with flexible flat foot : Single case study

2013 ◽  
Vol 38 (2) ◽  
pp. 160-166 ◽  
Author(s):  
Hassan Saeedi ◽  
Mohammad E Mousavi ◽  
Basir Majddoleslam ◽  
Mehdi Rahgozar ◽  
Gholamreza Aminian ◽  
...  
Keyword(s):  
Ground Reaction Force ◽  
Muscle Activity ◽  
Sagittal Plane ◽  
Single Case ◽  
Reaction Force ◽  
Vertical Ground Reaction Force ◽  
Flat Foot ◽  
Case Evaluation ◽  
The University ◽  
Foot Orthosis

Background:Due to blocking of pronation/dorsiflexion in flexible flat foot and restriction of these movements in using the University of California Berkeley Laboratory orthosis, provided pressures in sole by the orthosis were increased. Therefore, this article describes the evaluation of modified foot orthosis with flexible structure in the management of individuals with flexible flat foot.Case description and method:The patient was a 21-year-old male who had symptomatic flat foot. The modified foot orthosis included movable surface and the outside structure. The modified foot orthosis was evaluated by standing foot X-ray, comfort rate, electromyography of leg muscle and vertical ground reaction force during walking.Findings and outcomes:The modified foot orthosis improved the foot alignment and decreased the symptoms of flat foot with more comfort. Subtalar position by sub-maximum supination had higher position than neutral in sagittal plane. It may increase the muscle activity of peroneus longus by 7% compared to barefoot, and there was a decrease of 11% ground reaction force in mid stance.Conclusion:The result of this single case evaluation only proposed the feasibility of this modified insole as the orthotic treatment in flexible flat foot.Clinical relevanceThe modified foot orthosis, which is mobile in the midfoot, is an orthosis for walking and standing in subjects with flexible flat foot.

scholarly journals Estimating Minimal Clinically Important Differences for Knee Range of Motion after Stroke

2020 ◽  
Vol 9 (10) ◽  
pp. 3305
Author(s):  
Agnieszka Guzik ◽  
Mariusz Drużbicki ◽  
Andżelina Wolan-Nieroda ◽  
Andrea Turolla ◽  
Pawel Kiper
Keyword(s):  
Range Of Motion ◽  
Roc Curve ◽  
Sagittal Plane ◽  
Linear Regression Analysis ◽  
Unaffected Side ◽  
Point Change ◽  
Post Stroke ◽  
Gait Parameters ◽  
Flexion Extension ◽  
Estimate Method

The importance of knee sagittal kinematic parameters, as a predictor of walking performance in post-stroke gait has been emphasised by numerous researchers. However, no studies so far were designed to determine the minimal clinically important differences (MCID), i.e., the smallest difference in the relevant score for the kinematic gait parameters, which are perceived as beneficial for patients with stroke. Studies focusing on clinically important difference are useful because they can identify the clinical relevance of changes in the scores. The purpose of the study was to estimate the MCID for knee range of motion (ROM) in the sagittal plane for the affected and unaffected side at a chronic stage post-stroke. Fifty individuals were identified in a database of a rehabilitation clinic. We estimated MCID values using: an anchor-based method, distribution-based method, linear regression analysis and specification of the receiver operating characteristic (ROC) curve. In the anchor-based study, the mean change in knee flexion/extension ROM for the affected/unaffected side in the MCID group amounted to 8.48°/6.81° (the first MCID estimate). In the distribution-based study, the standard error of measurement for the no-change group was 1.86°/5.63° (the second MCID estimate). Method 3 analyses showed 7.71°/4.66° change in the ROM corresponding to 1.85-point change in the Barthel Index. The best cut-off point, determined with ROC curve, was the value corresponding to 3.9°/3.8° of change in the knee sagittal ROM for the affected/unaffected side (the fourth MCID estimate). We have determined that, in chronic stroke, MCID estimates of knee sagittal ROM for the affected side amount to 8.48° and for the unaffected side to 6.81°. These findings will assist clinicians and researchers in interpreting the significance of changes observed in kinematic sagittal plane parameters of the knee. The data are part of the following clinical trial: Australian New Zealand Clinical Trials Registry: ACTRN12617000436370

scholarly journals Effects of Artificial Texture Insoles and Foot Arches on Improving Arch Collapse in Flat Feet

Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3667 ◽  
Author(s):  
Yao-Te Wang ◽  
Jong-Chen Chen ◽  
Ying-Sheng Lin
Keyword(s):  
Pressure Distribution ◽  
Vital Role ◽  
Foot Pressure ◽  
Flat Foot ◽  
Pressure Sensing ◽  
Plantar Pressure Distribution ◽  
Flat Feet ◽  
Reaction Forces ◽  
Arch Index ◽  
The Impact

The arches of the foot play a vital role in cushioning the impact and pressure generated from ground reaction forces due to body weight. Owing to a lack of normal human arch structure, people diagnosed as having flat feet often have discomfort in the soles of their feet. The results may not only cause inappropriate foot pressure distribution on the sole but also further cause foot injuries. This study heavily relies on a homemade foot pressure sensing device equipped with textured insoles of different heights and artificial arches. This was to explore the extent to which the pressure distribution of the foot in people with flat feet could be improved. A further comparison was made of the effects of using the textured insoles with different heights on two different groups of people diagnosed with flat and normal feet respectively. Sixty-five undergraduate and postgraduate volunteers were invited to receive the ink footprint test for measuring their degrees of arch index. Nine of these 65 had 2 flat feet, 3 had a left flat foot, 5 had a right flat foot, and 48 had 2 normal feet. To ensure the same number of subjects in both the control and the experimental groups, 9 of the 48 subjects who had normal feet were randomly selected. In total, 26 subjects (Male: 25, Female: 1; Age: 22 ± 1 years; height: 173.6 ± 2.5 cm; body mass: 68.3 ± 5.4 kg; BMI: 22.6 ± 1.2) were invited to participate in this foot pressure sensing insoles study. The experimental results showed that the use of textured insoles designed with different heights could not effectively improve the plantar pressure distribution and body stability in subjects with flat feet. Conversely, the use of an artificial arch effectively improved the excessive peak in pressure and poor body stability, and alleviated the problem of plantar collapse for patients with flat feet, especially in the inner part of their hallux and forefoot.

Comparison of Barefoot Walking and Shod Walking Between Children with and Without Flat Feet

2015 ◽  
Vol 105 (3) ◽  
pp. 218-225 ◽  
Author(s):  
Jiann-Perng Chen ◽  
Meng-Jung Chung ◽  
Chao-Yin Wu ◽  
Kai-Wen Cheng ◽  
Mao-Jiun Wang
Keyword(s):  
Range Of Motion ◽  
Pelvic Tilt ◽  
Reaction Force ◽  
Ankle Dorsiflexion ◽  
Heel Strike ◽  
Shoe Condition ◽  
Joint Range Of Motion ◽  
Flat Feet ◽  
Hip Flexion ◽  
Joint Range

Background We sought to investigate the effect of wearing shoes on joint range of motion, ground reaction force (GRF), and muscle activity (electromyography) in children with flat and normal feet during walking. Methods Nine children with flat feet and 12 children with normal feet aged 5 to 11 years were recruited. Each child was instructed to walk on a walkway in the barefoot and shod conditions. Joint range of motion, GRF, and electromyographic data within one gait cycle were collected simultaneously. Two-way analysis of variance was performed to evaluate the effects of foot type and shoe condition on the response measures. Results Children with flat feet had greater joint motion and higher muscle activities in the lower extremity, as well as lower vertical GRF and longer duration of the first peak forces in vertical and mediolateral GRFs than children with normal feet while walking. Compared with the barefoot condition, shoe wearing in both groups of children showed an increase in ankle dorsiflexion at heel strike, a decrease in anteroposterior GRF and its duration, and an increase in leg muscle electromyographic activities. Pelvic tilt range of motion was affected by the interaction of foot type and shoe condition. Conclusions Gait performance in pelvic tilt, hip flexion, and ankle dorsiflexion were different between the two groups of children. Wearing shoes increased the muscle activities of the shin. This finding can provide important information for clinical assessment of and shoe design for children with flat feet.

Sagittal Fluoroscopy for the Assessment of Hindfoot Kinematics

2016 ◽  
Vol 138 (3) ◽  
Author(s):  
Benjamin D. McHenry ◽  
Emily Exten ◽  
Jason T. Long ◽  
Gerald F. Harris
Keyword(s):  
Range Of Motion ◽  
Sagittal Plane ◽  
Reaction Force ◽  
Alternative Methods ◽  
Joint Motion ◽  
Plane Model ◽  
Foot Kinematics ◽  
Analysis System ◽  
Anatomic Locations ◽  
Joint Motions

Current methods of quantifying foot kinematics during gait typically use markers placed externally on bony anatomic locations. These models are unable to analyze talocrural or subtalar motion because the talus lacks palpable landmarks to place external markers. Alternative methods of measuring these clinically relevant joint motions are invasive and have been limited to research purposes only. This study explores the use of fluoroscopy to noninvasively quantify talocrural and subtalar sagittal plane kinematics. A fluoroscopy system (FS) was designed and built to synchronize with an existing motion analysis system (MAS). Simultaneous fluoroscopic, marker motion, and ground reaction force (GRF) data were collected for five subjects to demonstrate system application. A hindfoot sagittal plane model was developed to evaluate talocrural and subtalar joint motion. Maximum talocrural plantar and dorsiflexion angles averaged among all the subjects occur at 12% and 83% of stance, respectively, with a range of motion of 20.1 deg. Maximum talocrural plantar and dorsiflexion angles averaged among all the subjects occur at toe-off and 67% of stance, respectively, with a range of motion of 8.7 deg. Based on the favorable comparison between the current fluoroscopically measured kinematics and previously reported results from alternative methods, it is concluded that fluoroscopic technology is well suited for measuring the sagittal plane hindfoot motion.

scholarly journals Assessment of flat foot using plantar arch index in young adults

Biomedicine ◽  
2021 ◽  
Vol 41 (3) ◽  
pp. 535-538
Author(s):  
Amith Ramos ◽  
Shannon Fernandes ◽  
. Pooja ◽  
Pooja J. Panicker ◽  
Pooja Krishnan
Keyword(s):  
Age Groups ◽  
Young Student ◽  
Age Group ◽  
Flat Foot ◽  
Medical College ◽  
Flat Feet ◽  
Age Dependent ◽  
Male Preponderance ◽  
Arch Index ◽  
A Prospective Study

Introduction and Aim: Flat foot or pes planus results from collapse of the arches of the foot. Etiology, however varies in different age groups. As anthropometric measurements are age dependent, their correlation with different foot postures should be age specific. Our study aimed at using Plantar arch Index (PAI) to identify prevalence of flat foot in a young student population and find any association of obesity with flat foot.   Methods: A prospective study was conducted on 150 medical students of a medical college. Staheli’s method was used to calculate PAI after collecting the footprints of students by ink method.   Results: Prevalence of type III flat foot deformity was 6%, with a male preponderance. The PAI values ranged from 0 to 1.818. No association was found between obesity and PAI.   Conclusion: Obesity was not associated with flat foot in the age group 18-25 years probably indicating different etiology for acquired flat foot in this age group. Our study also suggests that simple ink print method is a simpler method to diagnose flat feet deformity clinically using PAI.

INFLUENCE OF FOOT INSOLE ON THE GAIT PERFORMANCE IN SUBJECTS WITH FLAT FOOT DISORDER

2019 ◽  
Vol 19 (06) ◽  
pp. 1950050
Author(s):  
M. T. KARIMI ◽  
R. B. TAHMASEBI ◽  
B. SATVATI ◽  
F. FATOYE
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Lower Limb ◽  
Walking Speed ◽  
Force Plate ◽  
Flat Foot ◽  
Gait Performance ◽  
Positive Effects ◽  
Significant Difference ◽  
Foot Disorder

Flat foot is the most common foot disorder that influences the alignment of the lower limb structure. It is controversial whether the use of foot insole influences kinetic and kinematic of the leg or not. Therefore, this study investigated the influence of foot insole on the gait performance in subjects with flat foot disorder. A group of flat foot subject was recruited into this study (the number of subjects was 15). The motion of the leg joints was determined using the Qualysis motion analysis system. Moreover, the force applied on the lower limb was recorded by a Kistler force plate. The range of motion of the lower limb joints, the moments applied on the lower limb joints and force transmitted through the leg were the parameters used in this study. The difference between these parameters during walking with and without insole was evaluated using the paired [Formula: see text]-test. Significant value was set at [Formula: see text]. There was no significant difference between the range of motion of ankle joint while walking with and without insole. However, the medial directed force applied on the leg decreased significantly [Formula: see text]. The use of foot insole did not influence the moments transmitted through the hip and knee joints. The walking speed of the subjects improved while walking with foot insole. Use of foot insole influenced the magnitude of the force applied on the leg and the adductor moment of ankle joint due to its influence on foot alignment. As the walking speed of the improved subjects follows the use of insole, it can be concluded that it may have a positive effects on the performance of flat foot subjects.

scholarly journals DOES BRAIN ACTIVATION DURING FUNCTIONAL MOVEMENT TASKS DIFFERENTIATE BETWEEN GOOD AND BAD MOVERS? AN INTEGRATED NEUROIMAGING ASSESSMENT OF MOTOR CONTROL IN YOUNG ATHLETES

2021 ◽  
Vol 9 (7_suppl3) ◽  
pp. 2325967121S0013
Author(s):  
Manish Anand ◽  
Jed A. Diekfuss ◽  
Dustin R. Grooms ◽  
Alexis B. Slutsky-Ganesh ◽  
Scott Bonnette ◽  
...  
Keyword(s):  
Motor Control ◽  
Range Of Motion ◽  
Brain Function ◽  
Sagittal Plane ◽  
Brain Activity ◽  
Frontal Plane ◽  
Acl Injury ◽  
Timing Error ◽  
Lingual Gyrus ◽  
Increased Activity

Background: Aberrant frontal and sagittal plane knee motor control biomechanics contribute to increased anterior cruciate ligament (ACL) injury risk. Emergent data further indicates alterations in brain function may underlie ACL injury high risk biomechanics and primary injury. However, technical limitations have limited our ability to assess direct linkages between maladaptive biomechanics and brain function. Hypothesis/Purpose: (1) Increased frontal plane knee range of motion would associate with altered brain activity in regions important for sensorimotor control and (2) increased sagittal plane knee motor control timing error would associate with altered activity in sensorimotor control brain regions. Methods: Eighteen female high-school basketball and volleyball players (14.7 ± 1.4 years, 169.5 ± 7 cm, 65.8 ± 20.5 kg) underwent brain functional magnetic resonance imaging (fMRI) while performing a bilateral, combined hip, knee, and ankle flexion/extension movements against resistance (i.e., leg press) Figure 1(a). The participants completed this task to a reference beat of 1.2 Hz during four movement blocks of 30 seconds each interleaved in between 5 rest blocks of 30 seconds each. Concurrent frontal and sagittal plane range of motion (ROM) kinematics were measured using an MRI-compatible single camera motion capture system. Results: Increased frontal plane ROM was associated with increased brain activity in one cluster extending over the occipital fusiform gyrus and lingual gyrus ( p = .003, z > 3.1). Increased sagittal plane motor control timing error was associated with increased brain activity in multiple clusters extending over the occipital cortex (lingual gyrus), frontal cortex, and anterior cingulate cortex ( p < .001, z > 3.1); see Figure 1 (b). Conclusion: The associations of increased knee frontal plane ROM and sagittal plane timing error with increased activity in regions that integrate visuospatial information may be indicative of an increased propensity for knee injury biomechanics that are, in part, driven by reduced spatial awareness and an inability to adequately control knee abduction motion. Increased activation in these regions during movement tasks may underlie an impaired ability to control movements (i.e., less neural efficiency), leading to compromised knee positions during more complex sports scenarios. Increased activity in regions important for cognition/attention associating with motor control timing error further indicates a neurologically inefficient motor control strategy. [Figure: see text]

scholarly journals Static Range of Motion of the First Metatarsal in the Sagittal and Frontal Planes

2018 ◽  
Vol 7 (11) ◽  
pp. 456 ◽  
Author(s):  
Sandra Tavara-Vidalón ◽  
Manuel Monge-Vera ◽  
Guillermo Lafuente-Sotillos ◽  
Gabriel Domínguez-Maldonado ◽  
Pedro Munuera-Martínez
Keyword(s):  
Range Of Motion ◽  
Least Squares Method ◽  
Sagittal Plane ◽  
Frontal Plane ◽  
Neutral Position ◽  
Future Design ◽  
First Metatarsal ◽  
Medial Cuneiform ◽  
First Ray ◽  
Degree Equation

The first metatarsal and medial cuneiform form an important functional unit in the foot, called “first ray”. The first ray normal range of motion (ROM) is difficult to quantify due to the number of joints that are involved. Several methods have previously been proposed. Controversy exists related to normal movement of the first ray frontal plane accompanying that in the sagittal plane. The objective of this study was to investigate the ROM of the first ray in the sagittal and frontal planes in normal feet. Anterior-posterior radiographs were done of the feet of 40 healthy participants with the first ray in a neutral position, maximally dorsiflexed and maximally plantarflexed. They were digitalized and the distance between the tibial malleolus and the intersesamoid crest in the three positions mentioned was measured. The rotation of the first ray in these three positions was measured. A polynomic function that fits a curve describing the movement observed in the first ray was obtained using the least squares method. ROM of the first ray in the sagittal plane was 6.47 (SD 2.59) mm of dorsiflexion and 6.12 (SD 2.55) mm of plantarflexion. ROM in the frontal plane was 2.69 (SD 4.03) degrees of inversion during the dorsiflexion and 2.97 (SD 2.72) degrees during the plantarflexion. A second-degree equation was obtained, which represents the movement of the first ray. Passive dorsiflexion and plantarflexion of the first ray were accompanied by movements in the frontal plane: 0.45 degrees of movement were produced in the frontal plane for each millimeter of displacement in the sagittal plane. These findings might be useful for the future design of instruments for clinically quantifying first ray mobility.

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