Intratester Reliability for Determining an 8-Repetition Maximum for 3 Shoulder Exercises Using Elastic Bands

2005 ◽  
Vol 14 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Craig J. Newsam ◽  
Cindy Leese ◽  
Jennifer Fernandez-Silva
Keyword(s):  
Outcome Measures ◽  
External Rotation ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Training Load ◽  
Elastic Band ◽  
Repetition Maximum ◽  
Intraclass Correlation Coefficients ◽  
Elastic Bands ◽  
Very High

Context:Standardization of training load using the 1-repetition maximum (1RM) test cannot be directly applied when using elastic bands as resistance.Objective:To determine the intratester reliability for establishing an 8-repetition maximum (8RM) using elastic bands.Design:Test–retest.Participants:5 men, 10 women, 23–29 years.Intervention:An 8RM test was established for 3 shoulder exercises using the Dura-Band® exercise system.Main Outcome Measures:The length of the elastic band was recorded. An analysis of variance was performed, and intraclass correlation coefficients (ICC) were calculated for each exercise.Results:Intratester reliability for determining the elastic-band length required to establish an 8RM was very high for internal rotation (ICC = .91) and high for external rotation (ICC = .77). The diagonal pull-down 8RM test had moderate reliability (ICC = .65).Conclusion:Training load can be reliably standardized in healthy young adults using moderate-to high-resistance elastic bands with a goal-based multiple-RM test.

scholarly journals Is there a relationship between the overhead press and split jerk maximum performance? Influence of sex

2021 ◽  
pp. 174795412110204
Author(s):  
Marcos A Soriano ◽  
G Gregory Haff ◽  
Paul Comfort ◽  
Francisco J Amaro-Gahete ◽  
Antonio Torres-González ◽  
...  
Keyword(s):  
Confidence Intervals ◽  
Body Mass ◽  
Upper Limb ◽  
High Reliability ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Training Experience ◽  
Maximum Performance ◽  
Repetition Maximum ◽  
Intraclass Correlation Coefficients

The aims of this study were to (I) determine the differences and relationship between the overhead press and split jerk performance in athletes involved in weightlifting training, and (II) explore the magnitude of these differences in one-repetition maximum (1RM) performances between sexes. Sixty-one men (age: 30.4 ± 6.7 years; height: 1.8 ± 0.5 m; body mass 82.5 ± 8.5 kg; weightlifting training experience: 3.7 ± 3.5 yrs) and 21 women (age: 29.5 ± 5.2 yrs; height: 1.7 ± 0.5 m; body mass: 62.6 ± 5.7 kg; weightlifting training experience: 3.0 ± 1.5 yrs) participated. The 1RM performance of the overhead press and split jerk were assessed for all participants, with the overhead press assessed on two occasions to determine between-session reliability. The intraclass correlation coefficients (ICC) and 95% confidence intervals showed a high reliability for the overhead press ICC = 0.98 (0.97 – 0.99). A very strong correlation and significant differences were found between the overhead press and split jerk 1RM performances for all participants (r = 0.90 [0.93 – 0.85], 60.2 ± 18.3 kg, 95.7 ± 29.3 kg, p ≤ 0.001). Men demonstrated stronger correlations between the overhead press and split jerk 1RM performances (r = 0.83 [0.73-0.90], p ≤ 0.001) compared with women (r = 0.56 [0.17-0.80], p = 0.008). These results provide evidence that 1RM performance of the overhead press and split jerk performance are highly related, highlighting the importance of upper-limb strength in the split jerk maximum performance.

scholarly journals Reliability of the ForceFrame With and Without a Fixed Upper-Limb Mold in Shoulder Rotation Strength Assessments Compared With Traditional Hand-Held Dynamometry

2021 ◽  
pp. 1-4
Author(s):  
Jamon Couch ◽  
Marc Sayers ◽  
Tania Pizzari
Keyword(s):  
Upper Limb ◽  
External Rotation ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Shoulder Abduction ◽  
Minimal Detectable Change ◽  
Retest Reliability ◽  
Intraclass Correlation Coefficients ◽  
Shoulder Strength ◽  
Test Retest Reliability

Context: An imbalance between shoulder internal rotation (IR) and external rotation (ER) strength in athletes is proposed to increase the risk of sustaining a shoulder injury. Hand-held (HHD) and externally fixed dynamometry are reliable forms of assessing shoulder IR and ER strength. A new externally fixed device with an attachable fixed upper-limb mold (The ForceFrame) exists; however, its reliability in measuring shoulder strength is yet to be investigated. Objective: To determine the test–retest reliability of the ForceFrame, with and without the fixed upper-limb mold, in the assessment of shoulder IR and ER strength, as compared with HHD. Design: Test–retest reliability study. Setting: Laboratory, clinical. Participants: Twenty-two healthy and active individuals were recruited from the university community and a private physiotherapy practice. Main Outcome Measures: Maximal isometric shoulder IR and ER strength was measured using the ForceFrame and traditional HHD in neutral and at 90° shoulder abduction. Mean (SD) strength measures were calculated. Test–retest reliability was analyzed using intraclass correlation coefficients (3, 1). The SEM and minimal detectable change were calculated. Results: Good to excellent test–retest reliability was found for all shoulder strength tests across Hand-held dynamometry (HHD) and externally fixed dynamometry (EFD) are reliable forms (intraclass correlation coefficients [3, 1] = .854–.916). The minimal detectable changes ranged between 25.61 and 41.84 N across tests. Test–retest reliability was not affected by the dynamometer or testing position. Conclusions: The results from this study indicate that both the ForceFrame and HHD are suitable for measuring shoulder strength in clinical practice. The use of the fixed upper-limb mold with the ForceFrame does not improve reliability.

Are PROMs passing the message? A reflection with real-life migraine patients

Cephalalgia ◽  
2021 ◽  
pp. 033310242110345
Author(s):  
Raquel Gil-Gouveia ◽  
António Gouveia Oliveira
Keyword(s):  
Clinical Practice ◽  
Outcome Measures ◽  
Intraclass Correlation ◽  
Real Life ◽  
Correlation Coefficients ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Intraclass Correlation Coefficients ◽  
Patient Reported ◽  
Repeated Applications

Background Several patient-reported outcome measures are available to monitor headache impact, but are those reliable in real-life clinical practice? Methods Two identical patient-reported outcome measures (HALT-90 and MIDAS) were applied simultaneously in each clinical visit to a series of patients treated with monoclonal antibodies for migraine and intra-individual agreement was evaluated using the intraclass correlation coefficients. Results Our sample included 92 patients, 92.4% females, 45 years old on average. Moderate (0.50 to 0.75) and even poor (<0.50) ICC were observed in all but the first item of these patient-reported outcome measures in at least one evaluation. Over time, missing data were more frequent and no learning effect was detected. Discussion We observed intra-personal variation in reliability when answering patient-reported outcome measures, persisting in repeated applications, and a decrease in the motivation to respond, which should alert clinicians for these additional challenges in real-life clinical practice.

scholarly journals Reliability of a standing isokinetic shoulder rotators strength test using a functional electromechanical dynamometer: effects of velocity

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9951
Author(s):  
Dario Martinez-Garcia ◽  
Angela Rodriguez-Perea ◽  
Paola Barboza ◽  
David Ulloa-Díaz ◽  
Daniel Jerez-Mayorga ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Glenohumeral Joint ◽  
External Rotation ◽  
New Technology ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Relative Reliability ◽  
Intraclass Correlation Coefficients ◽  
Repeated Measures Analysis ◽  
Male Patients

Background The evaluation of the force in internal rotation (IR) and external rotation (ER) of the shoulder is commonly used to diagnose possible pathologies or disorders in the glenohumeral joint and to assess patient’s status and progression over time. Currently, there is new technology of multiple joint isokinetic dynamometry that allows to evaluate the strength in the human being. The main purpose of this study was to determine the absolute and relative reliability of concentric and eccentric internal and external shoulder rotators with a functional electromechanical dynamometer (FEMD). Methods Thirty-two male individuals (21.46 ±  2.1 years) were examined of concentric and eccentric strength of shoulder internal and external rotation with a FEMD at velocities of 0.3 m s−1 and 0.6 m s−1. Relative reliability was determined by intraclass correlation coefficients (ICC). Absolute reliability was quantified by standard error of measurement (SEM) and coefficient of variation (CV). Systematic differences across velocities testing circumstances, were analyzed with dependent t tests or repeated-measures analysis of variance in case of 2 or more than 2 conditions, respectively. Results Reliability was high to excellent for IR and ER on concentric and eccentric strength measurements, regardless of velocity used (ICC: 0.81–0.98, CV: 5.12–8.27% SEM: 4.06–15.04N). Concentric outcomes were more reliable than eccentric due to the possible familiarization of the population with the different stimuli. Conclusion All procedures examined showed high to excellent reliability for clinical use. However, a velocity of 0.60 m s−1 should be recommended for asymptomatic male patients because it demands less time for evaluation and patients find it more comfortable.

The reliability of a linear position transducer and commercially available accelerometer to measure punching velocity in junior boxing athletes

2020 ◽  
pp. 174795412095257
Author(s):  
Dale M Harris ◽  
Kevin Caillaud ◽  
Saumya Khullar ◽  
G Gregory Haff ◽  
Christopher Latella
Keyword(s):  
Peak Velocity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Dominant Hand ◽  
Maximum Peak ◽  
Intraclass Correlation Coefficients ◽  
Direct Measures ◽  
Fixed Bias ◽  
Maximal Effort ◽  
Very High

Limited evidence exists demonstrating reliability of using direct measures to quantify punching velocity. The aim of this study was to establish the intra- and inter-day reliability of a linear positional transducer (GymAware) and accelerometer (PUSH Band 2.0) for the quantification of peak punching velocity in trained junior boxing athletes. Eighteen males aged 16.7 years (±1.2) with at least two years of boxing experience participated in the study. On two separate days, participants performed five dominant-hand crosses with maximal effort. Ordinary least-products regression analysis was used to compare mean and maximum peak velocity scores between devices within each day of testing. Two-way mixed intraclass correlation coefficients (ICC3,1) and Pearson’s r with 95% confidence intervals (95%CI) were also used to compare mean and maximum peak velocity within devices across days. Maximum peak (∼7.5 ms vs. ∼6.2 ms) and mean peak (∼7.0 ms vs. 5.4 ms) velocity was higher when measured via GymAware compared to PUSH Band 2.0 on both days (all P ≤ 0.012). The within-device mean (ICC3,1 = 0.871, 95%CI  =  0.689, 0.950) and maximum (ICC3,1 =  0.853 95%CI  =  0.650, 0.942) peak velocity scores for the GymAware across Days 1 and 2 demonstrated very high reliabilities. Mean (ICC3,1 = 0.309, 95%CI = –0.170, 0.670) and maximum (ICC3,1 = 0.227, 95%CI = –0.173, 0.637) peak velocity for PUSH Band 2.0 demonstrated weak reliabilities. Proportional bias was found for Day 2 mean and maximum peak velocity and when both days were pooled. Fixed bias was observed for mean (Day 1) and maximum peak velocity when both days were pooled. These results may provide useful information for professionals working with boxing or combat-sport athletes.

scholarly journals Evaluation of the inter and intraobserver reproducibility of the GRASP method: a goniometric method to measure the isolated glenohumeral range of motion in the shoulder joint

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Miguel Angel Ruiz Ibán ◽  
Susana Alonso Güemes ◽  
Raquel Ruiz Díaz ◽  
Cristina Victoria Asenjo Gismero ◽  
Alejandro Lorente Gomez ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Internal Rotation ◽  
Glenohumeral Joint ◽  
External Rotation ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Outpatient Setting ◽  
Interobserver Reproducibility ◽  
Level Of Evidence ◽  
Intraclass Correlation Coefficients

Abstract Purpose To evaluate the intra and interobserver reproducibility of a new goniometric method for evaluating the isolated passive range of motion of the glenohumeral joint in an outpatient setting. Methods This is a prospective observational study on healthy subjects. The Glenohumeral ROM Assessment with Scapular Pinch (GRASP) method is a new method for assessing the isolated range of motion (ROM) of the glenohumeral joint (GH) by a single examiner with a clinical goniometer. It measures the isolated glenohumeral passive abduction (GH-AB), passive external rotation (GH-ER) and internal rotation (GH-IR) with the arm at 45º of abduction. These three GH ROM parameters were measured in both shoulders of 30 healthy volunteers (15 males/15 females, mean age:41.6[SD = 10.3] years). The full shoulder passive abduction, passive external rotation and internal rotation 45º of abduction were measured by the same examiners with a goniometer for comparison. One examiner made two evaluations and a second examiner made a third one. The primary outcome was the intra- and interobserver reproducibility of the measurements assessed with intraclass correlation coefficients (ICC) and the Bland–Altman plot. Results The intra-observer ICC for isolated glenohumeral ROM were: 0.84 ± 0.07 for GH-ABD, 0.63 ± 0.09 for GH-ER, and 0.61 ± 0.14 for GH-IR. The inter-observer ICC for isolated glenohumeral ROM were: 0.86 ± 0.06 for GH-ABD, 0.68 ± 0.12 for GH-ER, and 0.62 ± 0.14 for GH-IR. These results were similar to those obtained for full shoulder ROM assessment with a goniometer. Conclusion The GRASP method is reproducible for quick assessment of isolated glenohumeral ROM. Level of evidence III

scholarly journals Normalization of Early Isometric Force Production as a Percentage of Peak Force During Multijoint Isometric Assessment

2020 ◽  
Vol 15 (4) ◽  
pp. 478-482
Author(s):  
Paul Comfort ◽  
Thomas Dos’Santos ◽  
Paul A. Jones ◽  
John J. McMahon ◽  
Timothy J. Suchomel ◽  
...  
Keyword(s):  
Coefficient Of Variation ◽  
Intraclass Correlation ◽  
Force Production ◽  
Correlation Coefficients ◽  
Collegiate Athletes ◽  
Peak Force ◽  
Specific Force ◽  
Intraclass Correlation Coefficients ◽  
Time Specific ◽  
Very High

Purpose: To determine the reliability of early force production (50, 100, 150, 200, and 250 ms) relative to peak force (PF) during an isometric mid-thigh pull and to assess the relationships between these variables. Methods: Male collegiate athletes (N = 29; age 21.1 [2.9] y, height 1.71 [0.07] m, body mass 71.3 [13.6] kg) performed isometric mid-thigh pulls during 2 separate testing sessions. Net PF and net force produced at each epoch were calculated. Within- and between-session reliabilities were determined using intraclass correlation coefficients and coefficient of variation percentages. In addition, Pearson correlation coefficients and coefficient of determination were calculated to examine the relationships between PF and time-specific force production. Results: Net PF and time-specific force demonstrated very high to almost perfect reliability both within and between sessions (intraclass correlation coefficients .82–.97; coefficient of variation percentages 0.35%–1.23%). Similarly, time-specific force expressed as a percentage of PF demonstrated very high to almost perfect reliability both within and between sessions (intraclass correlation coefficients .76–.86; coefficient of variation percentages 0.32%–2.51%). Strong to nearly perfect relationships (r = .615–.881) exist between net PF and time-specific net force, with relationships improving over longer epochs. Conclusion: Based on the smallest detectable difference, a change in force at 50 milliseconds expressed relative to PF > 10% and early force production (100, 150, 200, and 250 ms) expressed relative to PF of >2% should be considered meaningful. Expressing early force production as a percentage of PF is reliable and may provide greater insight into the adaptations to the previous training phase than PF alone.

Test–Retest Reliability of the Standing Heel-Rise Test

2000 ◽  
Vol 9 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Michael D. Ross ◽  
Elizabeth G. Fontenot
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Muscle Performance ◽  
Retest Reliability ◽  
Intraclass Correlation Coefficients ◽  
Reliable Assessment ◽  
Repeated Measures Analysis ◽  
Test Retest Reliability

Context:The standing heel-rise test has been recommended as a means of assessing calf-muscle performance. To the authors' knowledge, the reliability of the test using intraclass correlation coefficients (ICCs) has not been reported.Objective:To determine the test-retest reliability of the standing heel-rise test.Design:Single-group repeated measures.Participants:Seventeen healthy subjects.Settings and Infevention:Each subject was asked to perform as many standing heel raises as possible during 2 testing sessions separated by 7 days.Main Outcome Measures:Reliability data for the standing heel-rise test were studied through a repeated-measures analysis of variance, ICC2, 1 and SEMs.Results:The ICC2,1 and SEM values for the standing heel-rise test were .96 and 2.07 repetitions, respectively.Conclusions:The standing heel-rise test offers clinicians a reliable assessment of calfmuscle performance. Further study is necessary to determine the ability of the standing heel-rise test to detect functional deficiencies in patients recovering from lower leg injury or surgery

Interobserver Reliability Using the Phonetic Level Evaluation With Severely and Profoundly Hearing-Impaired Children

1991 ◽  
Vol 34 (5) ◽  
pp. 989-999 ◽  
Author(s):  
Stephanie Shaw ◽  
Truman E. Coggins
Keyword(s):  
Interrater Reliability ◽  
Interobserver Reliability ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Hearing Impaired ◽  
Intraclass Correlation Coefficients ◽  
Assessment Measure ◽  
Impaired Children ◽  
Speech Assessment ◽  
Hearing Impaired Children

This study examines whether observers reliably categorize selected speech production behaviors in hearing-impaired children. A group of experienced speech-language pathologists was trained to score the elicited imitations of 5 profoundly and 5 severely hearing-impaired subjects using the Phonetic Level Evaluation (Ling, 1976). Interrater reliability was calculated using intraclass correlation coefficients. Overall, the magnitude of the coefficients was found to be considerably below what would be accepted in published behavioral research. Failure to obtain acceptably high levels of reliability suggests that the Phonetic Level Evaluation may not yet be an accurate and objective speech assessment measure for hearing-impaired children.

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