scholarly journals Reliability of a Measurement of Neck Flexor Muscle Endurance

2005 ◽  
Vol 85 (12) ◽  
pp. 1349-1355 ◽  
Author(s):  
Kevin D Harris ◽  
Darren M Heer ◽  
Tanja C Roy ◽  
Diane M Santos ◽  
Julie M Whitman ◽  
...  
Keyword(s):  
Neck Pain ◽  
Repeated Measures ◽  
Interrater Reliability ◽  
Intraclass Correlation ◽  
Test Session ◽  
Muscle Endurance ◽  
Flexor Muscle ◽  
Endurance Test ◽  
Initial Session ◽  
Standard Error Of Measurement

Abstract Background and Purpose. Neck flexor muscle endurance has been negatively correlated with cervical pain and dysfunction. The purposes of this study were to determine rater reliability in subjects both withand without neck pain and to determine whether there was a difference in neck flexor muscle endurance between the 2 groups. Subjects. Forty-one subjects with and without neck pain were enrolled in this repeated-measures reliability study. Methods. Two raters used an isometric neck retraction test to assess neck flexor muscle endurancefor all subjects during an initial session, and subjects without neck pain returned for testing 1 week later. Results. For the group without neck pain, intrarater reliability was good to excellent (intraclass correlation coefficient [ICC(3,1)]=.82–.91), and interrater reliability was moderate to good (ICC[2,1]=.67–.78). The associated standard error of measurement (SEM) ranged from 8.0 to 11.0 seconds and from 12.6 to 15.3 seconds, respectively. For the group with neck pain, interrater reliability was moderate(ICC[2,1]=.67, SEM=11.5). Neck flexor muscle endurance test results for the group without neck pain (X̄=38.95 seconds, SD=26.4) and the group with neck pain (X̄=24.1 seconds, SD=12.8) were significantly different. Discussion and Conclusion. Reliability coefficients differed between the 2 groups and ranged from moderate to excellent and improved after the first test session. The interrater reliability of data obtained with the neck flexor muscle endurance test in people with neck pain must be improved in order for clinicians to distinguish a clinically meaningful change from measurement error. Neck flexor muscle endurance was both statistically and clinically greater for subjects without neck pain than for those with neck pain.

scholarly journals Teleassessment of Gait and Gait Aids: Validity and Interrater Reliability

2020 ◽  
Vol 100 (4) ◽  
pp. 708-717
Author(s):  
Kavita Venkataraman ◽  
Kristopher Amis ◽  
Lawrence R Landerman ◽  
Kevin Caves ◽  
Gerald C Koh ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Interrater Reliability ◽  
Video Quality ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Slow Motion ◽  
Frame Rate ◽  
Normal Speed ◽  
Lower Frame ◽  
Rehabilitation Needs

Abstract Background Gait and mobility aid assessments are important components of rehabilitation. Given the increasing use of telehealth to meet rehabilitation needs, it is important to examine the feasibility of such assessments within the constraints of telerehabilitation. Objective The objective of this study was to examine the reliability and validity of the Tinetti Performance-Oriented Mobility Assessment gait scale (POMA-G) and cane height assessment under various video and transmission settings to demonstrate the feasibility of teleassessment. Design This repeated-measures study compared the test performances of in-person, slow motion (SM) review, and normal-speed (NS) video ratings at various fixed frame rates (8, 15, and 30 frames per second) and bandwidth (128, 384, and 768 kB/s) configurations. Methods Overall bias, validity, and interrater reliability were assessed for in-person, SM video, and NS video ratings, with SM video rating as the gold standard, as well as for different frame rate and bandwidth configurations within NS videos. Results There was moderate to good interrater reliability for the POMA-G (intraclass correlation coefficient [ICC] = 0.66–0.77 across all configurations) and moderate validity for in-person (β = 0.62; 95% confidence interval [CI] = 0.37–0.87) and NS video (β = 0.74; 95% CI = 0.67–0.80) ratings compared with the SM video rating. For cane height, interrater reliability was good (ICC = 0.66–0.77), although it was significantly lower at the lowest frame rate (8 frames per second) (ICC = 0.66; 95% CI = 0.54–0.76) and bandwidth (128 kB/s) (ICC = 0.69; 95% CI = 0.57–0.78) configurations. Validity for cane height was good for both in-person (β = 0.80; 95% CI = 0.62–0.98) and NS video (β = 0.86; 95% CI = 0.81–0.90) ratings compared with SM video rating. Limitations Some lower frame rate and bandwidth configurations may limit the reliability of remote cane height assessments. Conclusions Teleassessment for POMA-G and cane height using typically available internet and video quality is feasible, valid, and reliable.

scholarly journals Reliability of Safe Maximum Lifting Determinations of a Functional Capacity Evaluation

2002 ◽  
Vol 82 (4) ◽  
pp. 364-371 ◽  
Author(s):  
Douglas P Gross ◽  
Michele C Battié
Keyword(s):  
Functional Capacity ◽  
Repeated Measures ◽  
Interrater Reliability ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Functional Capacity Evaluation ◽  
Measurement Variability ◽  
Retest Reliability ◽  
Repeated Measures Design ◽  
Test Retest Reliability

Abstract Background and Purpose. Functional capacity evaluations (FCEs) are measurement tools used in predicting readiness to return to work following injury. The interrater and test-retest reliability of determinations of maximal safe lifting during kinesiophysical FCEs were examined in a sample of people who were off work and receiving workers' compensation. Subjects. Twenty-eight subjects with low back pain who had plateaued with treatment were enrolled. Five occupational therapists, trained and experienced in kinesiophysical methods, conducted testing. Methods. A repeated-measures design was used, with raters testing subjects simultaneously, yet independently. Subjects were rated on 2 occasions, separated by 2 to 4 days. Analyses included intraclass correlation coefficients (ICCs) and 95% confidence intervals. Results. The ICC values for interrater reliability ranged from .95 to .98. Test-retest values ranged from .78 to .94. Discussion and Conclusion. Inconsistencies in subjects' performance across sessions were the greatest source of FCE measurement variability. Overall, however, test-retest reliability was good and interrater reliability was excellent.

Reliability of an assessment of deep neck flexor muscle endurance test: A cross-sectional study

2014 ◽  
Vol 21 (5) ◽  
pp. 227-231 ◽  
Author(s):  
Jai Prakash Painkra ◽  
Suraj Kumar ◽  
Shahnawaz Anwer ◽  
Ratnesh Kumar ◽  
Mohammad Nezamuddin ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
Muscle Endurance ◽  
Sectional Study ◽  
Flexor Muscle ◽  
Endurance Test ◽  
Cross Sectional

scholarly journals A New Method of Isometric Dynamometry for the Craniocervical Flexor Muscles

2005 ◽  
Vol 85 (6) ◽  
pp. 556-564 ◽  
Author(s):  
Shaun P O'Leary ◽  
Bill T Vicenzino ◽  
Gwendolen A Jull
Keyword(s):  
Neck Pain ◽  
Intraclass Correlation ◽  
New Method ◽  
Muscle Performance ◽  
Neutral Position ◽  
Flexor Muscle ◽  
Maximal Voluntary Isometric Contraction ◽  
Good Reliability ◽  
Flexor Muscles ◽  
History Of

Abstract Background and Purpose. A new method of dynamometry has been developed to measure the performance of the craniocervical (CC) flexor muscles by recording the torque that these muscles exert on the cranium around the CC junction. This report describes the method, the specifications of the instrument, and the preliminary reliability data. Subjects and Methods. For the reliability study, 20 subjects (12 subjects with a history of neck pain, 8 subjects without a history of neck pain) performed, on 2 occasions, maximal voluntary isometric contraction (MVIC) tests of CC flexion in 3 positions within the range of CC flexion and submaximal sustained tests (20% and 50% of MVIC) in the middle range of CC flexion (craniocervical neutral position). Reliability coefficients were calculated to establish the test-retest reliability of the measurements. Results. The method demonstrated good reliability over 2 sessions in the measurement of MVIC (intraclass correlation coefficient [ICC]=.79–.93, SEM=0.6–1.4 N·m) and in the measurement of steadiness (standard deviation of torque amplitude) of a sustained contraction at 20% of MVIC (ICC=.74–.80, SEM=0.01 N·m), but not at 50% of MVIC (ICC=.07–.76, SEM=0.04–0.13 N·m). Discussion and Conclusion. The new dynamometry method appears to have potential clinical application in the measurement of craniocervical flexor muscle performance.

scholarly journals Agreement between the Open Barbell and Tendo Linear Position Transducers for Monitoring Barbell Velocity during Resistance Exercise

Sports ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 125
Author(s):  
Adam M. Gonzalez ◽  
Gerald T. Mangine ◽  
Robert W. Spitz ◽  
Jamie J. Ghigiarelli ◽  
Katie M. Sell
Keyword(s):  
Repeated Measures ◽  
Peak Velocity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Moderate Intensity ◽  
Mean Velocity ◽  
Intraclass Correlation Coefficients ◽  
Coefficients Of Variation ◽  
Repeated Measures Analysis ◽  
Standard Error Of Measurement

To determine the agreement between the Open Barbell (OB) and Tendo weightlifting analyzer (TWA) for measuring barbell velocity, eleven men (19.4 ± 1.0 y) performed one set of 2–3 repetitions at four sub-maximal percentage loads, [i.e., 30, 50, 70, and 90% one-repetition maximum (1RM)] in the back (BS) and front squat (FS) exercises. During each repetition, peak and mean barbell velocity were recorded by OB and TWA devices, and the average of the 2–3 repetitions was used for analyses. Although the repeated measures analysis of variance revealed significantly (p ≤ 0.005) greater peak and mean velocity scores from OB across all intensities, high intraclass correlation coefficients (ICC2,K = 0.790–0.998), low standard error of measurement (SEM2,K = 0.040–0.119 m·s−1), and coefficients of variation (CV = 2–4%) suggested consistency between devices. Positive (r = 0.491–0.949) Pearson correlations between averages and differences (between devices) in peak velocity, as well as associated Bland-Altman plots, showed greater differences occurred as the velocity increased, particularly at low-moderate intensity loads. OB consistently provides greater barbell velocity scores compared to TWA, and the differences between devices were more apparent as the peak velocity increased with low-to-moderate loads. Strength coaches and athletes may find better agreement between devices if the mean velocity scores are only considered.

scholarly journals Reliability of the endurance test for the erector spinae muscle

2016 ◽  
Vol 29 (2) ◽  
pp. 369-375 ◽  
Author(s):  
Cíntia Pereira de Souza ◽  
Renato Sobral Monteiro-Junior ◽  
Elirez Bezerra da Silva
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Erector Spinae ◽  
Muscle Endurance ◽  
Low Back ◽  
Endurance Test ◽  
Erector Spinae Muscle ◽  
Standard Error Of Measurement ◽  
Sedentary Women

Abstract Introduction: The low resistance of the erector spinae has been seen as a risk factor for developing chronic low back pain. The test of the erector spinae muscle endurance advocated by Biering-Sorensen has been used to assess the strength of the erector spinae muscle. Modifications of the measuring instrument require reliability studies. Objective: To evaluate the measurement of the erector spinae muscle endurance and the standard error of measurement (SEM) of the modified Biering-Sorensen test of erector spinae in women with chronic low back pain. Methods: Forty-eight sedentary women, aged 52 ±7, suffering from chronic low back pain, were tested. The position adopted was the prone position without the trunk on the examining table. Fixations were performed with straps at the ankles, knees and pelvis. The patient was instructed to maintain the shoulder blades in contact with the stadiometer as long as possible. The measurement was repeated, with measures 15 minutes apart. Results: Considering the confidence limits of Bland & Altman, - 40 and 68 seconds, the SEM was13 seconds and SEM% was 22. The ICC = 0.87 with p = 0.001. The first test was equal to 54 ± 36 seconds, and the retest = 67 ± 40 seconds. Conclusion: The endurance test of the erector spinae showed moderate reliability. Therefore, we suggest that, despite its applicability in clinical practice, the results should be interpreted carefully because the differences in mean erector spinae endurance of up to 13 seconds may be related to measurement error.

scholarly journals Pennation angle of vastus laterallis during isometric contractions performed at two knee angles

2017 ◽  
Vol 30 (suppl 1) ◽  
pp. 75-83
Author(s):  
Felipe Torres Miranda de Oliveira ◽  
Carlos Gomes de Oliveira ◽  
Paulo Farinatti
Keyword(s):  
Repeated Measures ◽  
Vastus Lateralis ◽  
Intraclass Correlation ◽  
Voluntary Contraction ◽  
Pennation Angle ◽  
Isokinetic Dynamometer ◽  
Full Extension ◽  
The Subject ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Abstract Introduction: The pennation angle (PA) of a muscle is not static value, but it adapts to the conditions imposed by the contraction intensity required. Objective: This study investigates the effect of knee angle (KA) and intensity of contraction (IC) on PA of vastus lateralis (VL). Methods: Eight women and nine men executed isometric torques lasting 5s at the maximal voluntary contraction (MVC), 25%, 50% and 75% of MVC, on an isokinetic dynamometer with the KA at 90° and 120° (full extension = 180°). The PA was measured in each test, and with the subject relaxed. The effect of IC on PA was tested by means of repeated measures ANOVA and effect size (ES), and of the KA on PA by paired t test, employed on each IC, together with the statistics: intraclass correlation (ICC), standard error of measurement (SEM) and ES, all calculated with the PAs measured at both KAs. Results: The PA increased significantly and successively with the IC (p < 0.05; ES between 1.11 and 3.04), but was not influenced by KA (p > 0.05; ICC between 0.70 and 0.81; SEM between 0.7° and 1.4°; ES between 0.02 and 0.2). Conclusion: The successive increase of PA with the IC supports the existence of relation between these variables. While studies advocate the effect of PA on joint angle this was not observed in this study, probable because the 30o of between KA difference employed was not enough to provide change in PA.

Intrarater and Interrater Reliability of First Metatarsophalangeal Joint Dorsiflexion

2012 ◽  
Vol 102 (4) ◽  
pp. 290-298 ◽  
Author(s):  
Angela M. Jones ◽  
Sarah A. Curran
Keyword(s):  
Standard Error ◽  
Interrater Reliability ◽  
Intraclass Correlation ◽  
Metatarsophalangeal Joint ◽  
Visual Estimation ◽  
First Metatarsophalangeal Joint ◽  
Real Size ◽  
Continued Use ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Background: Visual estimation (VE) and goniometric measurement (GM) are commonly used to assess first metatarsophalangeal joint dorsiflexion. The purposes of this study were to determine the intrarater and interrater reliability of VE and GM and to establish whether reliability was influenced by the experience of the examiner. Methods: Ten experienced and ten inexperienced examiners evaluated three real-size photographs of a first metatarsophalangeal joint positioned in various degrees of dorsiflexion on two separate occasions. Results: Experienced examiners demonstrated excellent intrarater and interrater reliability for GM (intraclass correlation coefficient [ICC], &gt;0.953; standard error of measurement [SEM], 1.8°–2.5°) compared with inexperienced examiners, who showed fair-to-good intrarater and interrater reliability (ICC, 0.322–0.597; SEM, 2.0°–3.0°). For VE, inexperienced examiners demonstrated fair-to-good interrater and excellent intra-rater reliability (ICC, 0.666–0.808), which was higher compared with experienced examiners (ICC, 0.167–0.672). The SEM (2.8°–4.4°) was less varied than that of experienced examiners (SEM, 3.8°–6.4°) for VE, but neither group’s SEMs were clinically acceptable. Conclusions: Although minimal differences between intrarater and interrater reliability of GM and VE are noted, this study suggests that GM is more reliable than VE is when used by experienced examiners. These findings support the continued use of GM for first metatarsophalangeal joint dorsiflexion assessment. (J Am Podiatr Med Assoc 102(4): 290–298, 2012)

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