scholarly journals The Validity and Reliability of Two Commercially Available Load Sensors for Clinical Strength Assessment

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8399
Author(s):  
Kohle Merry ◽  
Christopher Napier ◽  
Vivian Chung ◽  
Brett C. Hannigan ◽  
Megan MacPherson ◽  
...  
Keyword(s):  
Gold Standard ◽  
Cost Effective ◽  
Validity And Reliability ◽  
Concordance Correlation ◽  
Retest Reliability ◽  
Strength Assessment ◽  
Interclass Correlation ◽  
Intraclass Correlations ◽  
Cost Effective Alternative ◽  
Test Retest Reliability

Objective: Handheld dynamometers are common tools for assessing/monitoring muscular strength and endurance. Health/fitness Bluetooth load sensors may provide a cost-effective alternative; however, research is needed to evaluate the validity and reliability of such devices. This study assessed the validity and reliability of two commercially available Bluetooth load sensors (Activ5 by Activbody and Progressor by Tindeq). Methods: Four tests were conducted on each device: stepped loading, stress relaxation, simulated exercise, and hysteresis. Each test type was repeated three times using the Instron ElectroPuls mechanical testing device (a gold-standard system). Test–retest reliability was assessed through intraclass correlations. Agreement with the gold standard was assessed with Pearson’s correlation, interclass correlation, and Lin’s concordance correlation. Results: The Activ5 and Progressor had excellent test–retest reliability across all four tests (ICC(3,1) ≥ 0.999, all p ≤ 0.001). Agreement with the gold standard was excellent for both the Activ5 (ρ ≥ 0.998, ICC(3,1) ≥ 0.971, ρc ≥ 0.971, all p’s ≤ 0.001) and Progressor (ρ ≥ 0.999, ICC(3,1) ≥ 0.999, ρc ≥ 0.999, all p’s ≤ 0.001). Measurement error increased for both devices as applied load increased. Conclusion: Excellent test–retest reliability was found, suggesting that both devices can be used in a clinical setting to measure patient progress over time; however, the Activ5 consistently had poorer agreement with the gold standard (particularly at higher loads).

Validity and reliability of the Mandarin version of the Treatment Burden Questionnaire among stroke patients in Mainland China

2021 ◽  
Author(s):  
Qi Zhang ◽  
Ke Zhang ◽  
Miao Li ◽  
Jiaxin Gu ◽  
Xintong Li ◽  
...  
Keyword(s):  
Internal Consistency ◽  
Convergent Validity ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Therapeutic Interventions ◽  
Treatment Burden ◽  
Validity And Reliability ◽  
Stroke Patients ◽  
Retest Reliability ◽  
Test Retest Reliability

Abstract Objectives To examine the validity and reliability of the Mandarin version of the Treatment Burden Questionnaire (TBQ) among stroke patients. Background Stroke patients need long-term management of symptoms and life situation, and treatment burden has recently emerged as a new concept that can influence the health outcomes during the rehabilitation process. Methods The convenience sampling method was used to recruit 187 cases of stroke patients in a tertiary grade hospital in Tianjin for a formal investigation. Item analysis, reliability and validity tests were carried out. The reliability test included internal consistency and test–retest reliability. And as well as content, structure and convergent validity were performed for the validity test. Results Of the 187 completed questionnaires, only 180 (96.3%) were suitable for analysis. According to the experts’ evaluation, the I-CVI of each item was from 0.833 to 1.000, and the S-CVI was 0.967. The exploratory factor analysis yielded three-factor components with a cumulative variation of 53.054%. Convergent validity was demonstrated using measures of Morisky’s Medication Adherence Scale 8 (r = –0.450, P < 0.01). All correlations between items and global scores ranged from 0.403 to 0.638. Internal consistency reliability and test–retest reliability were found to be acceptable, as indicated by a Cronbach’s α of 0.824 and an intraclass correlation coefficient of 0.846, respectively. Conclusions The Mandarin TBQ had acceptable validity and reliability. The use of TBQ in the assessment of treatment burden of stroke survivor may benefit health resources allocation and provide tailor therapeutic interventions to construct minimally disruptive care.

Validity and reliability of the Turkish version of the Patient Dignity Inventory

2021 ◽  
pp. 1-8
Author(s):  
Yasemin Eskigülek ◽  
Sultan Kav
Keyword(s):  
Palliative Care ◽  
Factor Analysis ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Turkish Version ◽  
Retest Reliability ◽  
Significant Difference ◽  
Test Retest Reliability ◽  
Fit Index ◽  
Turkish Society

Abstract Objective The aim of this study was to investigate the validity and reliability of the Patient Dignity Inventory (PDI) in the Turkish society, which was developed to evaluate dignity-related distress in palliative care patients. Methods One hundred and twenty-seven adults with advanced cancer hospitalized in several clinics of two university hospitals were included in the study. The patients whose Palliative Performance Scale score was at least 40% were recruited to study. The data were collected with a patient demographic form, the Turkish version of Hospital Anxiety and Depression Scale (HADS-TR), and the Turkish version of the PDI (PDI-TR). The PDI-TR was finalized and back-translated after translating into Turkish and obtaining 10 expert opinions. Exploratory and confirmatory factor analysis, internal consistency, concurrent validity, and test–retest reliability analysis were performed. Results The Cronbach's α coefficient of PDI-TR was 0.94. Factor analysis resulted in a five-factor solution, and all items were loaded on factors. Factors were labeled as symptom distress, existential distress, self-confidence, dependency, and supportive care needs and accounted for 68.70% of the overall variance. The model's normed fit index, comparative fit index, and X2/SD were found between acceptable range (0.90, 0.93, and 2.64, respectively). A positive and strong correlation was found between subdimension scores of HADS-TR and the total score of PDI-TR (r = 0.70 for anxiety subdimension; r = 0.73 for depression subdimension). The test–retest reliability was conducted with 32 patients within the sample two weeks after the first application, and no significant difference was found between the two application scores as the result of paired-sample t-test (p > 0.05). An intraclass correlation coefficient of test–retest reliability was r = 0.855. Significance of results PDI-TR was found to be a valid and reliable tool in palliative care patients in Turkish society.

scholarly journals Criterion validity and reliability of the International Physical Activity Questionnaire – Hungarian short form against the RM42 accelerometer

2021 ◽  
Vol 21 (S1) ◽  
Author(s):  
Pongrác Ács ◽  
Réka Veress ◽  
Paulo Rocha ◽  
Tamás Dóczi ◽  
Bence László Raposa ◽  
...  
Keyword(s):  
Physical Activity ◽  
Concurrent Validity ◽  
International Physical Activity Questionnaire ◽  
Short Form ◽  
Sitting Time ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Physical Activity Questionnaire ◽  
Test Retest Reliability ◽  
Activity Questionnaire

Abstract Background Physical inactivity is a global phenomenon in European welfare countries. Proper monitoring is essential to measure the physical activity level of the population. Methods In the Hungarian cohort of the European Physical Activity and Sport Monitoring System (EUPASMOS) project, our participants (N = 598) completed sociodemographic questions and the International Physical Activity Questionnaire – short form (IPAQ-SF) survey. The validity and reliability of the subjective measurement tool were examined, IPAQ-SF outcomes were contrasted against triaxial RM42 accelerometer wore for 7 consecutive days. Results The IPAQ-SF showed moderate internal consistency (Cronbach Alpha = 0.647). The concurrent validity of the IPAQ-SF to triaxial accelerometer indicated a significant weak-to-moderate correlation (R = 0.111–0.338, p = 0.042; p < 0.001). The test-retest reliability showed a significant correlation between two measurements (R = 0.788–0.981, p < 0.001). Conclusion The Hungarian version of the IPAQ-SF had excellent test-retest reliability, but low-to-fair concurrent validity for moderate and vigorous physical activity, walking and sitting time, as compared to the objective criterion measure among Hungarian adults.

scholarly journals Finnish version of the Childbirth Experience Questionnaire (CEQ-FI): validity and reliability assessment

2020 ◽  
Author(s):  
Elli Toivonen ◽  
Anna Dencker ◽  
Jukka Uotila ◽  
Heini Huhtala ◽  
Outi Palomäki
Keyword(s):  
Internal Consistency ◽  
University Hospital ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Childbirth Experience ◽  
Multiple Dimensions ◽  
Reliable Instrument ◽  
Childbirth Experience Questionnaire ◽  
Test Retest Reliability ◽  
Experience Questionnaire

Abstract BackgroundChildbirth Experience Questionnaire (CEQ) was developed in Sweden to assess the childbirth experience in multiple dimensions. It has been translated and validated in English, Spanish, Chinese and Persian with the aim to evaluate childbirth experience reliably. This study aimed to validate the Finnish version of the questionnaire, CEQ-FI.MethodsPrimiparous women who had given birth in Tampere University Hospital between January and May 2019 were included in the study. Women planning a cesarean delivery, delivering preterm, or women whose children were transferred to neonatal care were excluded. Eligible 450 women were mailed the questionnaire one month postpartum, and those who completed the questionnaire were mailed it again six weeks postpartum. Test-retest reliability was evaluated by computing kappa coefficients for the two responses. Background data was collected from patient records and used to perform known-groups validation. Internal consistency was assessed by calculating Cronbach’s alpha.ResultsOne hundred seventy-five women returned the questionnaire. Internal consistency and test-retest reliability were good. Women with known risk factors for a negative childbirth experience scored lower in the questionnaire, as expected.ConclusionCEQ-FI is a valid and reliable instrument in measuring childbirth experience also among Finnish-speaking women.

Measurement of Social Engagement of Nursing Home Residents During an Exercise Program

2021 ◽  
pp. 1-9
Author(s):  
Jean Neils-Strunjas ◽  
K. Jason Crandall ◽  
Brian Weiler ◽  
Annika Gabbard ◽  
Caroline Wood ◽  
...  
Keyword(s):  
Health Care ◽  
Nursing Home ◽  
Social Engagement ◽  
Nursing Home Residents ◽  
Exercise Program ◽  
Self Report ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Bivariate Correlation ◽  
Test Retest Reliability

Purpose The purpose of this article was to describe the validity and reliability of the Fun and Social Engagement Evaluation (FUSE) developed to evaluate and measure social engagement displayed by nursing home residents during Bingocize. The FUSE combines health care worker observation and a resident self-report measure to produce a score that represents a resident's total engagement. Method To describe validity, trained health care workers who implement Bingocize were surveyed about the items on the FUSE. Visual inspection of bar graphs of responses to survey questions were used to determine content validity. To assess reliability of the FUSE, nursing home residents were evaluated by trained research assistants. Test–retest reliability of the participant scores 1 week apart was determined with the bivariate correlation (Pearson product–moment correlation coefficient). Results For validity, the majority of survey respondents indicated that the behaviors were representative of nursing home residents during Bingocize. For reliability, there was moderate–strong test–retest reliability over 1 week ( r = .60). Interrater reliability between two raters observing eight participants across two sessions was significant, κ = .68 (95% CI [.504,.848]), p < .0001. Conclusion Results offer evidence that the FUSE is a valid and reliable method for determining social engagement during Bingocize.

Validity and Reliability of Gifted Rating Scales-School Form in Sample of Teachers and Parents – A Czech Contribution

2020 ◽  
pp. 073428292097071
Author(s):  
Michal Jabůrek ◽  
Adam Ťápal ◽  
Šárka Portešová ◽  
Steven I. Pfeiffer
Keyword(s):  
Factor Structure ◽  
Concurrent Validity ◽  
Rating Scales ◽  
Teacher Rating ◽  
Halo Effect ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Alternative Models ◽  
Teachers And Parents ◽  
Test Retest Reliability

The factor structure, the concurrent validity, and test–retest reliability of the Czech translation of the Gifted Rating Scales-School Form [GRS-S; Pfeiffer, S. I., & Jarosewich, T. (2003). GRS (gifted rating scales) - manual. Pearson] were evaluated. Ten alternative models were tested. Four models were found to exhibit acceptable fit and interpretability. The factor structure was comparable for both parent ( n = 277) and teacher raters ( n = 137). High correlations between the factors suggest that raters might be subject to a halo effect. Ratings made by teachers show a closer relationship with criteria (WJ IE II COG, CFT 20-R, and TIM3–5) than ratings made by parents. Test–retest reliability of teacher rating (with median 93 days) was quite high for all GRS-S subscales ( r = .84–.87).

A Novel Tool for the Assessment of Sport Climbers’ Movement Performance

2020 ◽  
Vol 15 (6) ◽  
pp. 795-800 ◽  
Author(s):  
Nicola Taylor ◽  
David Giles ◽  
Micha Panáčková ◽  
James Mitchell ◽  
Joel Chidley ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Assessment Tool ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Consultation Process ◽  
Retest Reliability ◽  
Performance Factors ◽  
Sport Climbing ◽  
Movement Performance ◽  
Test Retest Reliability

Purpose: To assess the validity and reliability of a novel movement-performance assessment tool for climbing/sport climbing. Methods: First, salient climbing movement-performance factors were identified through an iterative consultation process with 10 expert climbing coaches; the resulting Climber’s Movement Performance Assessment Tool (CM-PAT) contained 14 items in 5 categories. Second, 61 intermediate to advanced climbers ascended a single route, which was video recorded. Subsequently, 4 experienced (>10 y coaching) coaches used the CM-PAT to observe and score the climbers’ performance. Interrater reliability and comparisons with existing measures of climbing performance (6-mo self-reported ability, success and failure, climbing pace [m·min−1], and geometric entropy) were made. Results: Intraclass correlation coefficient (2,k) for the 4 raters demonstrated excellent reliability (>.81) between observers and good to excellent test–retest reliability (.71–.91). Pearson correlations between self-reported ability and CM-PAT scores explained 61% of the variance in self-reported climbing performance compared with 16% for geometric entropy and 52% for climbing pace. Considering differences in successful and unsuccessful climbers, the CM-PAT (P < .0005; d = 2.14), geometric entropy (P = .014; d = 0.67), and pace (P < .0005; d = 1.88) were able to differentiate between groups. Conclusions: The CM-PAT is the first sport climbing performance observational instrument to be developed through a thorough iterative process with expert coaches. Excellent interrater and test–retest reliability and excellent agreement with self-reported ability and with existing quantitative measures of performance support its recommendation for use in coaching and research contexts. Notably, a key advantage over existing measures is the identification of coachable elements of performance.

Test–Retest Reliability and the Effects of Walking Speed on Stride Time Variability During Continuous, Overground Walking in Healthy Young Adults

2020 ◽  
pp. 1-7
Author(s):  
Nicholas S. Ryan ◽  
Paul A. Bruno ◽  
John M. Barden
Keyword(s):  
Young Adults ◽  
Walking Speed ◽  
Time Variability ◽  
Clinical Settings ◽  
Stride Time ◽  
Real Difference ◽  
Overground Walking ◽  
Retest Reliability ◽  
Intraclass Correlations ◽  
Test Retest Reliability

Studies have investigated the reliability and effect of walking speed on stride time variability during walking trials performed on a treadmill. The objective of this study was to investigate the reliability of stride time variability and the effect of walking speed on stride time variability, during continuous, overground walking in healthy young adults. Participants completed: (1) 2 walking trials at their preferred walking speed on 1 day and another trial 2 to 4 days later and (2) 1 trial at their preferred walking speed, 1 trial approximately 20% to 25% faster than their preferred walking speed, and 1 trial approximately 20% to 25% slower than their preferred walking speed on a separate day. Data from a waist-mounted accelerometer were used to determine the consecutive stride times for each trial. The reliability of stride time variability outcomes was generally poor (intraclass correlations: .167–.487). Although some significant differences in stride time variability were found between the preferred walking speed, fast, and slow trials, individual between-trial differences were generally below the estimated minimum difference considered to be a real difference. The development of a protocol to improve the reliability of stride time variability outcomes during continuous, overground walking would be beneficial to improve their application in research and clinical settings.

Arabic version of the Back Pain Attitudes Questionnaire: Translation, cross-cultural adaptation, and psychometric properties

2020 ◽  
pp. 1-9
Author(s):  
Saddam F. Kanaan ◽  
Hana’a Khraise ◽  
Khader A. Almhdawi ◽  
Ben Darlow ◽  
Alaa O. Oteir ◽  
...  
Keyword(s):  
Back Pain ◽  
Psychometric Properties ◽  
Cultural Adaptation ◽  
Arabic Language ◽  
Cross Cultural ◽  
Arabic Version ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Cross Cultural Adaptation ◽  
Test Retest Reliability

BACKGROUND: The Back Pain Attitudes Questionnaire (Back-PAQ) is a tool developed for the assessment of attitudes about back pain. However, this tool is not available in the Arabic language. The availability of the Arabic version of the questionnaire will enable clinicians and researchers in Arabic-speaking countries to assess patients’ attitudes towards back pain. OBJECTIVE: We aimed to translate and cross-culturally adapt the English version of the Back-PAQ into Arabic and study its psychometric properties. METHODS: The translation and cross-cultural adaptation processes were performed according to published guidelines. The translated Arabic version was tested for face and content validity on 40 participants. The psychometric properties of the final Arabic version were tested on 110 participants. Participants completed the Arabic version of the Back-PAQ and Fear-Avoidance Beliefs Questionnaire (FABQ). A subgroup of 50 participants completed the questionnaire twice in a week interval to determine the Back-PAQ test-retest reliability. RESULTS: The majority of participants found the questionnaire understandable and the questions relevant and appropriate for their back problem. There was a fair correlation between the Back-PAQ-Arabic and the FABQ physical activity scale (rho = 0.283, p= 0.001), and little to no correlation with total FABQ (rho = 0.186, p= 0.026) and education level (rho =-0.162, p= 0.045). The Arabic Back-PAQ-Arabic showed moderate internal consistency with Cronbach’s α of 0.601, and excellent test-retest reliability (ICC2,1= 0.963). The Back-PAQ standard error of measurement was 3.57 and minimum detectable changes was 9.90. CONCLUSION: The Arabic version of the Back-PAQ has adequate validity and reliability properties.

scholarly journals Gait Asymmetry Post-Stroke: Determining Valid and Reliable Methods Using a Single Accelerometer Located on the Trunk

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 37 ◽  
Author(s):  
Christopher Buckley ◽  
M. Encarna Micó-Amigo ◽  
Michael Dunne-Willows ◽  
Alan Godfrey ◽  
Aodhán Hickey ◽  
...  
Keyword(s):  
Concurrent Validity ◽  
Intraclass Correlation ◽  
Future Research ◽  
Validity And Reliability ◽  
Gait Symmetry ◽  
Retest Reliability ◽  
Post Stroke ◽  
Gait Asymmetry ◽  
Test Retest Reliability ◽  
Cardinal Symptom

Asymmetry is a cardinal symptom of gait post-stroke that is targeted during rehabilitation. Technological developments have allowed accelerometers to be a feasible tool to provide digital gait variables. Many acceleration-derived variables are proposed to measure gait asymmetry. Despite a need for accurate calculation, no consensus exists for what is the most valid and reliable variable. Using an instrumented walkway (GaitRite) as the reference standard, this study compared the validity and reliability of multiple acceleration-derived asymmetry variables. Twenty-five post-stroke participants performed repeated walks over GaitRite whilst wearing a tri-axial accelerometer (Axivity AX3) on their lower back, on two occasions, one week apart. Harmonic ratio, autocorrelation, gait symmetry index, phase plots, acceleration, and jerk root mean square were calculated from the acceleration signals. Test–retest reliability was calculated, and concurrent validity was estimated by comparison with GaitRite. The strongest concurrent validity was obtained from step regularity from the vertical signal, which also recorded excellent test–retest reliability (Spearman’s rank correlation coefficients (rho) = 0.87 and Intraclass correlation coefficient (ICC21) = 0.98, respectively). Future research should test the responsiveness of this and other step asymmetry variables to quantify change during recovery and the effect of rehabilitative interventions for consideration as digital biomarkers to quantify gait asymmetry.

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