scholarly journals Validation of Plantar Pressure and Reaction Force Measured by Moticon Pressure Sensor Insoles on a Concept2 Rowing Ergometer

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2418
Author(s):  
Georgina Kate Barratt ◽  
Clint Bellenger ◽  
Eileen Yule Robertson ◽  
Jason Lane ◽  
Robert George Crowther
Keyword(s):  
Plantar Pressure ◽  
Reaction Force ◽  
Reliability And Validity ◽  
Significant Difference ◽  
Rowing Ergometer ◽  
Peak Plantar Pressure ◽  
Ergometer Rowing ◽  
Multiple Trials ◽  
Test Retest Reliability ◽  
User Friendly

The purpose of this study was to determine the reliability and validity of plantar pressure and reaction force measured using the Moticon and Pedar-x sensor insoles while rowing on a Concept2 ergometer. Nineteen participants performed four 500 m trials of ergometer rowing at 22–24 strokes/min; two trials wearing Moticon insoles and two wearing Pedar-x insoles in a randomised order. Moticon and Pedar-x insoles both showed moderate to strong test–retest reliability (ICC = 0.57–0.92) for mean and peak plantar pressure and reaction force. Paired t-test demonstrated a significant difference (p < 0.001) between Moticon and Pedar-x insoles, effect size showed a large bias (ES > 1.13), and Pearson’s correlation (r < 0.37) showed poor agreement for all plantar pressure and reaction force variables. Compared to Pedar-x, the Moticon insoles demonstrated poor validity, however, the Moticon insoles had strong reliability. Due to poor validity, caution should be used when considering Moticon insoles to assess changes in pressure and force reliably over time, across multiple trials or sessions. Moticon’s wireless and user-friendly application would be beneficial for assessing and monitoring biomechanical parameters in rowing if validity between measures of interest and Moticon’s results can be established.

Tactile Functions in Learning-Disabled and Normal Children: Reliability and Validity Considerations

1989 ◽  
Vol 9 (1) ◽  
pp. 3-15 ◽  
Author(s):  
Moya Kinnealey
Keyword(s):  
Sensory Integration ◽  
Concurrent Validity ◽  
Southern California ◽  
Reliability And Validity ◽  
Learning Disabled ◽  
Neuropsychological Battery ◽  
Normal Children ◽  
Significant Difference ◽  
Two Measures ◽  
Test Retest Reliability

This study compared tactile functions of learning-disabled and normal children as measured by the tactile portions of the Southern California Sensory Integration Tests and the Luria-Nebraska Neuropsychological Battery, Children's revision, to explore the reliability and validity of the two measures and to determine to what extent they are able to discriminate between normal and learning-disabled children. The subjects were sixty 8-year-old children: 30 normal children and 30 children with learning disabilities. The results showed a significant difference between the tactile scores of learning-disabled and normal children. The internal consistency of both tests was .80. A test-retest reliability coefficient of .86 was obtained for both measures. The construct validity for both measures was good. Furthermore, a discriminant analysis correctly classified 90% of the children. Concurrent validity between the two measures was .73. The study also showed that individual tests of the tactile section of the Southern California tests and of the tactile section of the Luria-Nebraska battery (which was artificially divided into subsections for the purposes of this study) are less reliable than the tests given together.

Assessing Plantar Pressure Distribution in Children with Flatfoot Arch

2014 ◽  
Vol 104 (6) ◽  
pp. 622-632 ◽  
Author(s):  
Jolanta Pauk ◽  
Mikhail Ihnatouski ◽  
Bijan Najafi
Keyword(s):  
Mathematical Model ◽  
Pressure Distribution ◽  
Body Mass ◽  
Plantar Pressure ◽  
Reaction Force ◽  
Retest Reliability ◽  
Plantar Pressure Distribution ◽  
Foot Posture ◽  
Test Retest Reliability ◽  
Pressure Magnitude

Background Flatfoot, or pes planus, is one of the most common foot posture problems in children that may lead to lower-extremity pain owing to a potential increase in plantar pressure. First, we compared plantar pressure distribution between children with and without flatfoot. Second, we examined the reliability and accuracy of a simple metric for characterization of foot posture: the Clarke angle. Third, we proposed a mathematical model to predict plantar pressure magnitude under the medial arch using body mass and the Clarke angle. Methods Sixty children with flatfoot and 33 aged-matched controls were recruited. Measurements included in-shoe plantar pressure distribution, ground reaction force, Clarke angle, and radiography assessment. The measured Clarke angle was compared with radiographic measurements, and its test-retest reliability was determined. A mathematical model was fitted to predict plantar pressure distribution under the medial arch using easy-to-measure variables (body mass and the Clarke angle). Results A high correlation was observed between the Clarke angle and radiography measurements (r &gt; 0.9; P &lt; 10−6). Excellent between- and within-day test-retest reliability for Clarke angle measurement (intraclass correlation coefficient, &gt;0.9) was observed. Results also suggest that pressure magnitude under the medial arch can be estimated using the Clarke angle and body mass (R2 = 0.95; error, &lt;0.04 N/cm2 [2%]). Conclusions This study suggests that the Clarke angle is a practical, reliable, and sensitive metric for quantification of medial arch height in children and could be recommended for research and clinical applications. It can also be used to estimate plantar pressure under the medial arch, which, in turn, may assist in the timely intervention and prognosis of prospective problems associated with flatfoot posture.

The Validity, Reliability and Internal Consistency of the Cross-Cultural Adaptation of the FIL-DASH (Filipino Version of the Disability of the Arm, Shoulder and Hand) Questionnaire in Patients with Traumatic Brachial Plexus Injuries

2019 ◽  
Vol 24 (04) ◽  
pp. 456-461 ◽  
Author(s):  
Emmanuel P. Estrella ◽  
Nathaniel S. Orillaza ◽  
Nina T. Castillo-Carandang ◽  
Cynthia P. Cordero ◽  
Noel R. Juban
Keyword(s):  
Brachial Plexus ◽  
Internal Consistency ◽  
Reliability And Validity ◽  
Brief Pain Inventory ◽  
Dash Score ◽  
Retest Reliability ◽  
Sf 36 ◽  
Significant Difference ◽  
Test Retest Reliability ◽  
Dash Questionnaire

Background: The objective of this paper was to determine the validity, reliability and internal consistency of the translated FILIPINO DASH (FIL-DASH) questionnaire in patients with traumatic brachial plexus injuries. Methods: Thirty-five adult patients with traumatic brachial plexus injury were enrolled in the validation stage. The same questionnaire was given to the patient between 7 to 14 days for the test-retest reliability. The validated Filipino version of the SF-36 was used as the gold standard to determine the construct validity of the translated DASH. We also compared the DASH score with the SF-36 total and subscale, validated Brief Pain Inventory Severity and Interference Scale and the Visual Acuity Scale (VAS) for Pain. Results: The internal consistency was adequate, with Cronbach’s Alpha for the 30 items of 0.93 and an average inter-item covariance of 0.399. The test-retest reliability was 0.87 (p < 0.001). There was no significant difference in establising the validity of the translated DASH against SF-36 total and Subscale, validated Brief Pain Inventory Severity and Interference Scale and the Visual Analogue Scale (VAS). Conclusions: The translated DASH (FIL-DASH) questionnaire was internally consistent and showed no difference in testing for test-retest reliability and validity against functional outcome measures and pain scales validated for adult Filipinos.

Study on Plantar Pressure of Male Adults during Walking with Single-Shoulder Weight

2013 ◽  
Vol 694-697 ◽  
pp. 3063-3066 ◽  
Author(s):  
Guo Qiang Li ◽  
Hao Chen ◽  
Jiang Guo Zhang
Keyword(s):  
Body Weight ◽  
Plantar Pressure ◽  
Reaction Force ◽  
Human Movement ◽  
Biped Robot ◽  
Three Dimension ◽  
Foot Pressure ◽  
Significant Difference ◽  
Platform System ◽  
Male Subjects

The purpose of this study was to investigate plantar pressure of male adults under different sing-shoulder weight during walking. Experiments were conducted at single-shoulder load styles in four different weight conditions by three-dimension force platform system. Four weight conditions were 5%, 10%, 15% and 20% of body weight. Seven characteristic parameters were selected and analyzed by statistical methods. The results showed a significant difference for the male subjects at 13% of body weight loads comparing with natural walk. Ground reaction force was employed to analyze human movement. This study was designed to obtain the data of foot pressure, which was important to the balance of control of biped robot.

scholarly journals The effect of taping on maximum plantar pressure and ground reaction force in people with flat foot after applying a fatigue protocol

2021 ◽  
Author(s):  
Fatemeh Aghakeshizadeh ◽  
Amir Letafatkar ◽  
Peyman Aghaei Ataabadi ◽  
Mahdi Hosseinzadeh
Keyword(s):  
Ground Reaction Force ◽  
Plantar Pressure ◽  
Reaction Force ◽  
External Support ◽  
Lateral Side ◽  
Flat Foot ◽  
Fatigue Protocol ◽  
Medial Side ◽  
Significant Difference ◽  
Before And After

Abstract Background: People suffering from flat foot show more movements in hindfoot and midfoot joints as compared to the others. The anti-pronation tapings are supposed to provide temporary external support for the medial longitudinal arch. The aim of this study was to examine the effects of two types of anti-pronation taping on the lower limb kinetics in flat foot people before and after performing a physical fatigue protocol. Methods: 20 male and female with flat foot aged 22.39 ± 2.02 years old were studied under three conditions (untaping, reverse-6 taping and low-dye taping) either before or after fatigue states. The maximum plantar pressure and ground reaction force were measured by an RSscan foot scan system during walking. Results: A statistically significant difference was observed after applying two types of taping (reverse-6 vs. low-dye taping) in the maximum plantar pressure perceived in metatarsus 1 (P = 0.016) and lateral heel (P = 0.044). In the post-fatigue conditions, there were significant differences between the two taping types in metatarsus 4 (P = 0.024). The maximum ground reaction force in toe 1 (P = 0.001), toe 2-5 (P = 0.001), metatarsus 5 (P = 0.001), and medial heel (P = 0.001) was significantly different between reverse-6 and Low-dye tapings. Conclusions: The results indicated that the low-dye and reverse-6 taping types can reduce the pressure on the medial side of the foot, and push it towards the lateral side. It is therefore suggested using taping as an effective treatment for redistribution of the pressure and force in sole of the foot in people with flat foot.

scholarly journals Shoe Cushioning Effects on Foot Loading and Comfort Perception during Typical Basketball Maneuvers

2019 ◽  
Vol 9 (18) ◽  
pp. 3893 ◽  
Author(s):  
Xini Zhang ◽  
Zhen Luo ◽  
Xi Wang ◽  
Yang Yang ◽  
Jiaxin Niu ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Loading Rate ◽  
Reaction Force ◽  
Basketball Players ◽  
Pressure System ◽  
Significant Difference ◽  
Comfort Perception ◽  
Force Peak ◽  
Foot Loading ◽  
The Relationship

Purpose: This study aimed to explore the relationship between foot loading and comfort perception in two basketball shoes during basketball-specific maneuvers. Methods: Twelve male collegiate basketball players were required to complete three basketball maneuvers (i.e., side-step cutting, 90° L-direction running, and lay-up jumping) in two basketball shoe conditions (shoe L and shoe N, with different midsole cushioning types). Two Kistler force plates and a Medilogic insole plantar pressure system were used to collect kinetic data (i.e., impact force, peak loading rate, and plantar pressure variables). Perception scales were used to evaluate comfort perception. Results: No significant difference was observed between the two shoes during maneuvers in terms of ground reaction force. However, the plantar pressure of shoe L in the midfoot and lateral foot regions was significantly greater than that of shoe N during side-step cutting and lay-up jumping. Shoe N was significantly superior to shoe L, especially in dynamic scale in terms of the perception of comfort. The plantar pressure and perception characteristics in the two shoes were significantly different but inconsistent with each other. Conclusion: The biomechanical characteristics of the shoes themselves and the perception evaluation of the athletes should be considered in comprehensive shoe-cushioning design and evaluation.

scholarly journals Cross-cultural Adaptation and Psychometric Properties of the Indonesian Version of the Self-Regulation for Dental Home Care Questionnaire

2018 ◽  
Vol 25 (3) ◽  
Author(s):  
Yuanita L. Rachmawati ◽  
◽  
Jolanta E. Loster ◽  
Bartłomiej W. Loster ◽  
Diah A. Maharani ◽  
...  
Keyword(s):  
Home Care ◽  
Discriminant Validity ◽  
Patient Adherence ◽  
Self Regulation ◽  
Reliability And Validity ◽  
The Self ◽  
Oral Disease ◽  
Significant Difference ◽  
Dental Home ◽  
Test Retest Reliability

Few studies have reported the role of motivation in patient adherence to dental-care programmes or dental home care and prevention of oral disease, particularly in Indonesia. Objective: To cross-adapt the Self-Regulation for Dental Home Care Questionnaire (SRDHCQ) to the Indonesian version, and to study self-regulation for dental home care among adolescents. Methods: The SRDHCQ was cross culturally adapted to the Indonesian adolescents aged 12-13 years old to test its reliability and validity. Intraoral examination was conducted by a single examiner to analyse the number of decayed teeth. The SRDHCQ contains 22 questions with a 7-point scale, which comprises of integrated, identified, introjected, external regulation and amotivation domains. Respondents were randomly selected from 11 junior high schools at six districts in Jakarta. Results: Total respondents studied were 317 students, with prevalence of 71% of the students having decayed teeth, and average number decayed teeth was 2.1. The test and test-retest reliability and Cronbach’s alpha for internal consistency were 0.838 and 0.929, respectively. No significant difference was observed in total SRDHCQ scores between genders. Construct and discriminant validity analysis showed significant results. Conclusions: Our results support the reliability and validity of the Indonesian SRDHCQ for adolescents in Indonesia.

scholarly journals CORRELATIONS BETWEEN PLANTAR PRESSURE AND JOINT KINEMATICS IN FEMALE RECREATIONAL RUNNERS

2021 ◽  
Vol 57 (2) ◽  
pp. 100-105
Author(s):  
Janelle A. Cross ◽  
◽  
Fadumo Mohamud ◽  
Carolyn Meinerz ◽  
Gerald F. Harris ◽  
...  
Keyword(s):  
Plantar Pressure ◽  
Sagittal Plane ◽  
Reaction Force ◽  
Three Dimensional ◽  
Plane Motion ◽  
Joint Kinematics ◽  
Ankle Inversion ◽  
Peak Plantar Pressure ◽  
Pressure Peak ◽  
Recreational Runners

performed simultaneous assessments of plantar pressure and joint kinematics; however, they have not investigated correlations between these parameters. The goal of this study was to assess relationships between joint kinematics and plantar pressure metrics during stance phase of running. Fifteen female recreational runners participated in this study. Three-dimensional motion analysis and plantar pressure data were collected simultaneously as the subjects ran on an instrumented treadmill. Participants ran at a self-selected speed while maintaining a heart rate (HR) at 70-80% of their maximum HR (max HR = 220 – age). Sagittal and coronal plane motion of the ankle and hip and sagittal plane motion of the knee, along with peak plantar pressure, peak ground reaction force (GRF), force impulse, and pressure impulse were examined. Spearman rho correlation tests were performed to determine correlations among lower extremity joint kinematics and plantar pressure metrics. Positive correlations were found between peak plantar pressure and ankle dorsiflexion, knee flexion, and ankle inversion as well as between running speed and peak GRF. These correlations gave insight into risk factors for injury based on the relationship between plantar pressure metrics and joint kinematics.

Reliability and Validity of a Reactive Agility Test for Australian Football

2010 ◽  
Vol 5 (2) ◽  
pp. 239-248 ◽  
Author(s):  
James P. Veale ◽  
Alan J. Pearce ◽  
John S. Carlson
Keyword(s):  
Construct Validity ◽  
Reliability And Validity ◽  
Nonparametric Tests ◽  
Control Group ◽  
Reactive Component ◽  
Significant Difference ◽  
Reactive Agility ◽  
Australian Football ◽  
Discriminant Analyses ◽  
Test Retest Reliability

Purpose:The aim of this study was to test the reliability and construct validity of a reactive agility test (RAT), designed for Australian Football (AF).Methods:Study I tested the reliability of the RAT, with 20 elite junior AF players (17.44 ± 0.55 y) completing the test on two occasions separated by 1 wk. Study II tested its construct validity by comparing the performance of 60 participants (16.60 ± 0.50 y) spread over three aged-matched population groups: 20 athletes participating in a State Under-18 AF league who had represented their state at national competitions (elite), 20 athletes participating in the same league who had not represented their state (subelite), and 20 healthy males who did not play AF (controls).Results:Test-retest reliability reported a strong correlation (0.91), with no significant difference (P = .22) between the mean results (1.74 ± 0.07 s and 1.76 ± 0.07 s) obtained (split 2+3). Nonparametric tests (Kruskal-Wallis and Mann-Whitney) revealed both AF groups performed significantly faster on all measures than the control group (ranging from P = .001 to .005), with significant differences also reported between the two AF groups (ranging from P = .001 to .046). Stepwise discriminant analyses found total time discriminated between the groups, correctly classifying 75% of the participants.Conclusions:The RAT used within this study demonstrates evidence of reliability and construct validity. It further suggests the ability of a reactive component within agility test designs to discriminate among athletes of different competition levels, highlighting its importance within training activities.

scholarly journals Reliability and Validity of the Korean Version of Somatic Symptom Scale-8

2020 ◽  
Vol 17 (8) ◽  
pp. 814-821
Author(s):  
Chan-Mo Yang ◽  
Kyu-Sic Hwang ◽  
Sang-Yeol Lee ◽  
Jeong Seok Seo ◽  
Seung-Ho Jang
Keyword(s):  
Factor Analysis ◽  
Somatic Symptom ◽  
Factor Model ◽  
Reliability And Validity ◽  
Symptom Scale ◽  
Retest Reliability ◽  
Korean Version ◽  
Significant Difference ◽  
Test Retest Reliability ◽  
Scale 8

Objective Somatic symptoms in psychiatry include underlying depression, anxiety, or other psychiatric disorders. This study aimed to conduct a validation study of a Korean version of the Somatic Symptom Scale-8 (K-SSS-8), and to utilize the K-SSS-8 effectively in clinical settings.Methods For reliabilty, test-retest reliability and internal consistency were analyzed. For construct validity, exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were conducted. Known-group validity was verified, Jonckheere-Terpstra test (J-T statistic) were used.Results Maternal Cronbach’s alpha was 0.85 and r value of test-retest reliability was 0.777. In the EFA, 2-, 3- and 4-factor model showed cumulative percentile for variance of 60% or more. In the CFA, the 3-factor model was found to be the most appropriated and simplest (χ<sup>2</sup>=10.992, df=17, CFI=1.000, TLI=1.022, RMSEA=0.000). The verifying the difference in K-SSS-8 also showed significant difference. (J-T statistic=-2.510, p<0.05).Conclusion K-SSS-8 can be useful for exploring symptoms such as panic symptoms, physical pain, and physiological symptoms experienced by patients in a short time. In addition, the K-SSS-8 is expected to be very useful for determining the current severity by using the severity categories and for establish additionally required assessment plans for depression and anxiety symptoms.

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