Determining Meaningful Changes in Pelvic-On-Femoral Position during the Trendelenburg Test

2007 ◽  
Vol 16 (4) ◽  
pp. 326-335 ◽  
Author(s):  
James W. Youdas ◽  
Sara T. Mraz ◽  
Barbara J. Norstad ◽  
Jennifer J. Schinke ◽  
John H. Hollman
Keyword(s):  
Outcome Measures ◽  
Simple Procedure ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Lower Extremity Injuries ◽  
Single Leg Stance ◽  
Hip Abductor ◽  
Extremity Injuries ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Context:Hip abductor muscle weakness is related to many lower extremity injuries. A simple procedure, the Trendelenburg test, may be used to assess hip abductor performance in patient populations.Objective:To describe the minimal detectable change (MDC) in pelvic-on-femoral (P-O-F) position of the stance limb during the Trendelenburg test.Setting:Laboratory.Participants:45 healthy women (28 ± 8 years) and 45 healthy men (33 ± 11 years).Main Outcome Measures:P-O-F position in degrees in single-leg stance. Results: Baseline P-O-F position (hip adduction) was 83° ± 3° with a range from 76° to 94°. The intratester reliability (ICC3,1 for measurement of P-O-F position using a universal goniometer was 0.58 with a standard error of measurement (SEM) of 2°. The minimal detectable change (MDC) was calculated to be 4°.Conclusions:If a person’s P-O-F position changes less than 4° between measurements, then the P-O-F position is within measurement error and it can be determined that there has been no change in the performance of the hip abductor muscles when examined by the Trendelenburg test.

scholarly journals Cross-cultural adaptation and psychometric evaluation of the Yoruba version of Oswestry disability index

2019 ◽  
Author(s):  
Chidozie Emmanuel Mbada ◽  
Oluwabunmi Esther Oguntoyinbo ◽  
Francis Oluwafunso Fasuyi ◽  
Opeyemi Ayodiipo Idowu ◽  
Adesola Christiana Odole ◽  
...  
Keyword(s):  
Back Pain ◽  
Psychometric Properties ◽  
Factor Structure ◽  
Minimal Detectable Change ◽  
Low Back ◽  
Detectable Change ◽  
Intra Class Correlation ◽  
Test Retest Reliability ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

AbstractIntroductionLow Back Pain is a common public health problem worsened by maladaptive beliefs and incongruent back pain behaviour. It is imperative to develop outcome measures to assess these beliefs among patients with chronic LBP. This study aimed to cross-culturally adapt and determine the psychometric properties of the Yoruba version of the ODI (ODI-Y).MethodsThe ODI-Y was cross-culturally adapted following the process involving forward translation, synthesis, backward translation, expert review, and pilot testing. One hundred and thirty-six patients with chronic LBP took part in the validation of the ODI-Y; 86 of these individuals took part in the test-retest reliability (within 1-week interval) of the translated instrument. Internal consistency and test-retest reliability of the ODI-Y were determined using the Cronbach’s alpha and intra-class correlation. Other psychometric properties explored included the factor structure and fit, convergent validity, standard error of measurement and the minimal detectable change.ResultsThe mean age of the respondents was 50.5±10.6years. The ODI-Y showed a high internal consistency, with a Cronbach’s alpha (α) of 0.81. Test-retest of the Yoruba version of the ODI within 1-week interval yielded an Intra-Class Correlation coefficient of 0.89. The ODI-Y yielded a two-factor structure which accounted for 51.7% of the variance but showed poor fit. Convergent of ODI-Y with the visual analogue scale was moderate (r=0.30; p=0.00). The standard error of measurement and minimal detectable change of the ODI-Y were 2.0 and 5.5.ConclusionsThe ODI was adapted into the Yoruba language and proved to have a good factor structure and psychometric properties that replicated the results of other obtainable versions. We recommend it for use among Yoruba speaking patients with low-back pain.

scholarly journals Development of a Self-Report Measure of Fearful Activities for Patients With Low Back Pain: The Fear of Daily Activities Questionnaire

2009 ◽  
Vol 89 (9) ◽  
pp. 969-979 ◽  
Author(s):  
Steven Z. George ◽  
Carolina Valencia ◽  
Giorgio Zeppieri ◽  
Michael E. Robinson
Keyword(s):  
Factor Analysis ◽  
Confidence Interval ◽  
Self Report ◽  
Daily Activities ◽  
Physical Impairment ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Standard Error Of Measurement ◽  
Report Measure ◽  
Error Of Measurement

Background Self-report measures for assessing specific fear of activities have not been reported in the peer-reviewed literature, but are necessary to adequately test treatment hypotheses related to fear-avoidance models. Objective This study described psychomotor properties of a novel self-report measure, the Fear of Daily Activities Questionnaire (FDAQ). Design A prospective cohort design was used. Methods Reliability and validity cohorts were recruited from outpatient physical therapy clinics. Analyses for the reliability cohort included internal consistency and 48-hour test-retest coefficients, as well as standard error of measurement and minimal detectable change estimates. Analyses for the validity cohort included factor analysis for construct validity and correlation and multiple regression analyses for concurrent and predictive validity. Four-week responsiveness was assessed by paired t test, effect size calculation, and percentage of patients meeting or achieving MDC criterion. Results The FDAQ demonstrated adequate internal consistency (Cronbach alpha=.91, 95% confidence interval=.87–.95) and 48-hour test-retest properties (intraclass correlation coefficient=.90, 95% confidence interval=.82–.94). The standard error of measurement for the FDAQ was 6.6, resulting in a minimal detectable change of 12.9. Factor analysis suggested a 2- or 3-factor solution consisting of loaded spine, postural, and spinal movement factors. The FDAQ demonstrated concurrent validity by contributing variance to disability (baseline and 4 weeks) and physical impairment (baseline) scores. In predictive validity analyses, baseline FDAQ scores did not contribute variance to 4-week disability and physical impairment scores, but changes in FDAQ scores were associated with changes in disability. The FDAQ scores significantly decreased over a 4-week treatment period, with an effect size of .86 and 55% of participants meeting the minimal detectable change criterion. Limitations The validity cohort was a secondary analysis of a clinical trial, and additional research is needed to confirm these findings in other samples. Conclusions The FDAQ is a potentially viable measure for fear of specific activities in physical therapy settings. These analyses suggest the FDAQ may be appropriate for determining graded exposure treatment plans and monitoring changes in fear levels, but is not appropriate as a screening tool.

scholarly journals Reliability of a Smartphone Goniometric Application in the Measurement of Hip Range of Motion Among Experienced and Novice Clinicians

2020 ◽  
pp. 1-4
Author(s):  
Enda Whyte ◽  
Tiarnán O. Doinn ◽  
Miriam Downey ◽  
Siobhán O’Connor
Keyword(s):  
Confidence Interval ◽  
Range Of Motion ◽  
Standard Error ◽  
External Rotation ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Hip Range Of Motion ◽  
Goniometric Measurements ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Context: Deficits in the hip range of motion are associated with hip and groin injuries. Accurate and reliable goniometric measurements are important in identifying those at risk of injury and determining the efficacy of treatment interventions. Smartphone goniometric applications are regularly used to assess joint ranges of motion; however, there is limited knowledge on the reliability of this method in relation to the hip, particularly between clinicians with different levels of experience. Objective: To determine the intratester and intertester reliability of a smartphone clinometer application for the assessment of hip goniometric measurements in healthy volunteers by an experienced and novice clinician. Design: Reliability study. Setting: University Athletic Therapy facility. Participants: Physically active, university students. Main Outcome Measures: The study determined the intra- and intertester (experienced vs novice clinician) reliability of goniometric measurements of the hip joint (modified Thomas test and seated hip internal and external rotation) using a smartphone goniometric application. Intraclass correlation coefficients (ICCs), standard error of measurement, and minimal detectable change at a 95% confidence interval were used to assess reliability. Results: Goniometric measurements demonstrated good to excellent relative intratester reliability for the modified Thomas test (ICC = .94), external rotation (ICC = .93–.95), and internal rotation (ICC = .80–.81). Intertester reliability for expert and novice clinicians was also excellent for the modified Thomas test (ICC = .98), external rotation (ICC = .95), and internal rotation (ICC = .92). Intratester and intertester standard error of measurement and minimal detectable change at 95% confidence interval values were similar for both testers and ranged from 1.9° to 3.6° and 5° to 10.1° and from 1.1° to 2.3° and 2.9° to 6.5°, respectively. Conclusion: Smartphone-based goniometric measurements of hip range of motion have high intratester and intertester reliability for novice and expert clinicians. It may be a useful, simple, and inexpensive resource for clinicians.

scholarly journals Reliability of three-dimensional kinematic gait data in adults with spinal cord injury

2017 ◽  
Vol 4 ◽  
pp. 205566831772999 ◽  
Author(s):  
Pia Wedege ◽  
Kathrin Steffen ◽  
Vegard Strøm ◽  
Arve Isak Opheim
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Cord Injury ◽  
Hip Rotation ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Objectives Three-dimensional gait analysis has been recommended as part of standardized gait assessment in people with spinal cord injury. The aim was to investigate inter- and intra-session reliabilities of gait kinematics in people with spinal cord injury. Methods Fifteen adults with spinal cord injury performed two test sessions on separate days. Six infrared cameras, 16 reflective markers and the Plug-in gait model were used. For each subject, five gait trials from both sessions were included. The Gait Profile Score and the Gait Variable Score were used as kinematic outcome measures. Reliability was assessed with intraclass correlation coefficient, standard error of measurement, minimal detectable change, and Bland–Altman plots. Results Inter-session intraclass correlation coefficient for all variables was >0.82 and standard error of measurement <1.8°, except for hip rotation. Intra-session reliability was found to be high (≥0.78) and slightly better than that for inter-session. Minimal detectable change for all variables was <4.7°, except for hip rotation. Conclusions The high inter- and intra-session reliabilities indicate small intrinsic variation of gait. Thus, three-dimensional gait analysis seems to be a reliable tool to evaluate kinematic gait in adults with spinal cord injury, but caution is warranted especially for hip rotation evaluation.

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