The better way to determine the validity, reliability, objectivity and accuracy of measuring devices

Pazira, Parvin; Haji-Abadi, Mahdi Rostami; Zolaktaf, Vahid; Sabahi, Mohamad Farzan; Pazira, Toomaj

doi:10.3233/wor-162310

Cited by 4 publications

(5 citation statements)

References 9 publications

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“…Sbj1 Sbj2 Sbj3 Sbj4 Sbj5 Sbj6 Sbj7 Sbj8 Sbj9 Sbj10 Sbj11 Sbj12 Sbj13 Sbj14 Sbj16 Sbj17 Sbj18 Sbj19 Sbj20 Sbj21 Sbj22 Sbj23 Sbj24 Sbj25 Sbj26 sEMG during a standardised lifting situation has a fair to substantial relative reliability of 89% and 73% of the lifting situations in absolute sEMG and normalised sEMG, respectively. However, reliability studies do not address the question of validity or accuracy (Pazira et al 2016). The current study is part of the method development for an intervention study in the construction industry measuring the construction workers' physical loading and body positions using sEMG and accelerometers, respectively (Brandt et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Accuracy of identification of low or high risk lifting during standardised lifting situations

et al. 2017

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The aim was to classify lifting activities into low and high risk categories (according to The Danish Working Environment Authority guidelines) based on surface electromyography (sEMG) and trunk inclination (tri-axial accelerometer) measurements. Lifting tasks with different weights, horizontal distance and technique were performed. The lifting tasks were characterised by a feature vector composed of either the 90th, 95th or 99th percentile of sEMG activity level and trunk inclinations during the task. Linear Discriminant Analysis and a subject-specific threshold scheme were applied and lifting tasks were classified with an accuracy of 65.1-65.5%. When lifts were classified based on the subject-specific threshold scheme from low and upper back accelerometers, the accuracy reached 52.1-58.1% and 72.7-78.1%, respectively. In conclusion, the use of subject-specific thresholds from sEMG from upper trapezius and erector spinae as well as inclination of the upper trunk enabled us to identify low and high risk lifts with an acceptable accuracy.Practitioner Summary: This study contributes to the development of a method enabling the automatic detection of high risk lifting tasks, i.e. exposure to high biomechanical loads, based on individual sEMG and kinematics from an entire working day. These methods may be more costeffective and may complement observations commonly used by practitioners.

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Section: Discussionmentioning

confidence: 99%

Accuracy of identification of low or high risk lifting during standardised lifting situations

et al. 2017

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“…When physical trainers or coaches introduce a new technique for clinical assessment, an appropriate rationale for their proposals is crucial [13]. This is the first study to use an FM to determine the validity and intra-and inter-rater reliability of SLR and HA.…”

Section: Discussionmentioning

confidence: 99%

“…Hence, accurate and reliable measurement instruments are therefore essential to objectively monitor progression, outcomes, and mobility impairments. ROM can be assessed using various quantification methods [11][12][13]. Measurements vary in complexity and include observation, tape measurement (TM), electrical, electromagnetic and mechanical goniometry, electrical and mechanical inclinometry, flexible curve linear, and roentgenographic or radiographic analysis [11,[14][15][16][17], and, more recently, an iPhone app was validated to measure ankle dorsiflexion [18].…”

Section: Introductionmentioning

confidence: 99%

“…The universal goniometer remains the most documented device for measuring ROM in these tests [22], although the reliability of the goniometric technique may be reduced when measuring hip ROM and may be highly variable depending on the movement assessed [23]. However, physical trainers and coaches commonly prioritize the capability to conduct widely accessible, cost-effective, and minimally invasive tests for analyzing athletes' performance [13,24]. In this regard, field-based tests are generally used.…”

Section: Introductionmentioning

confidence: 99%

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A New Flexometric Method to Evaluate Range of Movement: A Validity and Reliability Study

Moras Feliu,

Gisbert-Orozco,

González

et al. 2024

Applied Sciences

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Hip range of movement (ROM) impairments could affect individuals’ quality of life. The aim of this study is to describe a new flexometric method (FM) as a means to estimate hip ROM and to determine its concurrent validity and inter-rater and intra-rater reliability. Hip ROM was measured by performing the straight leg raise test (SLR) and hip abduction test (HA). The WIMU system is the gold standard. ROM was calculated in degrees using a trigonometric function based on values derived from measurements with a flexometer. The SLR and the HA showed high concurrent validity and good inter- and intra-rater reliability with an interclass correlation coefficient value that was at all times > 0.9. The minimal detectable change at the 90% confidence level for inter- and intra-rater reliability was equal to or greater than 5.7° in SLR-Right, 5.6° in SLR-Left, 5.1° in HA, 6.3° in SLR-Right, 4.9° in SLR-Left, and 5.4° in HA, respectively. This study suggests that the FM is a valid and reliable tool for assessing hip ROM. Due to its convenience and cost-effectiveness, this method could be widely used to measure the ROM of several joints in field-based tests.

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“…Goniometer was used to measure movement of the joints; the mean value of three measurements was documented for further calculation. Goniometry plays an essential role in the clinical measurement of range of motion (Gajdosik and Bohannon 1987;Pazira et al 2016). It is apparent from several papers that traditional plastic goniometer evaluates hip and knee joint angles efficiently and reliably; however, use of goniometer requires careful attention in evaluation (Kim 2018;Marques et al 2017;Charbonnier et al 2015;Gajdosik and Bohannon 1987;Rheault et al 1988).…”

Section: Outcome Parametersmentioning

confidence: 99%

Evidence for the therapeutic effect of the organic content in Szigetvár thermal water on osteoarthritis: a double-blind, randomized, controlled clinical trial

Hanzel

Berényi

Horváth³

et al. 2019

Int J Biometeorol

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The therapeutic effects of mineral waters have been attributed to the inorganic components alone; however, biologically active organic components are also present. We aimed to investigate whether the healing effect of Szigetvár thermal mineral water could relate to the organic matter in patients suffering from osteoarthritis of the hips and the knees. XAD macroreticular resins were used to prepare the organic fraction. Patients received a 30-min thermal water (34°C) treatment in a bath tub, five times a week for 3 weeks. After randomization, patients were divided into three groups: tap water, mineral water, and organic fraction group. Primary outcomes were range of movement (ROM), Western Ontario and McMaster University Osteoarthritis Index (WOMAC), and visual analog scale (VAS) for pain severity, and the Short Form 36 (SF-36) questionnaire was used. These scores and indices were measured at baseline, after the last treatment, and at the end of the 3-month follow-up period. Seventy-four patients (age 67.3 ± 4.48 years) were enrolled: tap water n = 24, mineral water n = 26, and organic fraction n = 24. Treatment with the redissolved organic fraction significantly improved ROM, WOMAC, and SF-36 scores compared to the tap water. Our clinical trial provided evidence for the beneficial health effects of the organic fraction of Szigetvár medicinal water.

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The better way to determine the validity, reliability, objectivity and accuracy of measuring devices

Cited by 4 publications

References 9 publications

Accuracy of identification of low or high risk lifting during standardised lifting situations

Accuracy of identification of low or high risk lifting during standardised lifting situations

A New Flexometric Method to Evaluate Range of Movement: A Validity and Reliability Study

Evidence for the therapeutic effect of the organic content in Szigetvár thermal water on osteoarthritis: a double-blind, randomized, controlled clinical trial

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