Relative validity and reliability of a novel diet quality assessment tool for athletes: the Athlete Diet Index

2020 ◽  
pp. 1-13
Author(s):  
Louise Capling ◽  
Janelle A. Gifford ◽  
Kathryn L. Beck ◽  
Victoria M. Flood ◽  
Fiona Halar ◽  
...  
Keyword(s):  
Diet Quality ◽  
Assessment Tool ◽  
Intraclass Correlation ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Systematic Bias ◽  
Validity And Reliability ◽  
Food Record ◽  
Good Reliability ◽  
Relative Validity

Abstract Diet quality indices are a practical, cost-effective method to evaluate dietary patterns, yet few have investigated diet quality in athletes. This study describes the relative validity and reliability of the recently developed Athlete Diet Index (ADI). Participants completed the electronic ADI on two occasions, 2 weeks apart, followed by a 4-d estimated food record (4-dFR). Relative validity was evaluated by directly comparing mean scores of the two administrations (mAdm) against scores derived from 4-dFR using Spearman’s rank correlation coefficient and Bland–Altman (B–A) plots. Construct validity was investigated by comparing mAdm scores and 4-dFR-derived nutrient intakes using Spearman’s coefficient and independent t test. Test–retest reliability was assessed using paired t test, intraclass correlation coefficients (ICC) and B–A plots. Sixty-eight elite athletes (18·8 (sd 4·2) years) from an Australian sporting institute completed the ADI on both occasions. Mean score was 84·1 (sd 15·2; range 42·5–114·0). The ADI had good reliability (ICC = 0·80, 95 % CI 0·69, 0·87; P < 0·001), and B–A plots (mean 1·9; level of agreement −17·8, 21·7) showed no indication of systematic bias (y = 4·57–0·03 × x) (95 % CI −0·2, 0·1; P = 0·70). Relative validity was evaluated in fifty athletes who completed all study phases. Comparison of mAdm scores with 4-dFR-derived scores was moderate (rs 0·69; P < 0·001) with no systematic bias between methods of measurement (y = 6·90–0·04 × x) (95 % CI −0·3, 0·2; P = 0·73). Higher scores were associated with higher absolute nutrient intake consistent with a healthy dietary pattern. The ADI is a reliable tool with moderate validity, demonstrating its potential for application to investigate the diet quality of athletes.

scholarly journals Valid and Reliable Barbell Velocity Estimation Using an Inertial Measurement Unit

2021 ◽  
Vol 18 (17) ◽  
pp. 9170
Author(s):  
Steffen Held ◽  
Ludwig Rappelt ◽  
Jan-Philip Deutsch ◽  
Lars Donath
Keyword(s):  
Inertial Measurement Unit ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Velocity Estimation ◽  
Measurement Unit ◽  
Systematic Bias ◽  
Validity And Reliability ◽  
Inertial Measurement ◽  
Intraclass Correlation Coefficients ◽  
Reliability Indicators

The accurate assessment of the mean concentric barbell velocity (MCV) and its displacement are crucial aspects of resistance training. Therefore, the validity and reliability indicators of an easy-to-use inertial measurement unit (VmaxPro®) were examined. Nineteen trained males (23.1 ± 3.2 years, 1.78 ± 0.08 m, 75.8 ± 9.8 kg; Squat 1-Repetition maximum (1RM): 114.8 ± 24.5 kg) performed squats and hip thrusts (3–5 sets, 30 repetitions total, 75% 1RM) on two separate days. The MCV and displacement were simultaneously measured using VmaxPro® and a linear position transducer (Speed4Lift®). Good to excellent intraclass correlation coefficients (0.91 < ICC < 0.96) with a small systematic bias (p < 0.001; ηp2 < 0.50) for squats (0.01 ± 0.04 m·s−1) and hip thrusts (0.01 ± 0.05 m·s−1) and a low limit of agreement (LoA < 0.12 m·s−1) indicated an acceptable validity. The within- and between-day reliability of the MCV revealed good ICCs (0.55 < ICC < 0.91) and a low LoA (<0.16 m·s−1). Although the displacement revealed a systematic bias during squats (p < 0.001; ηp2 < 0.10; 3.4 ± 3.4 cm), no bias was detectable during hip thrusts (p = 0.784; ηp2 < 0.001; 0.3 ± 3.3 cm). The displacement showed moderate to good ICCs (0.43 to 0.95) but a high LoA (7.8 to 10.7 cm) for the validity and (within- and between-day) reliability of squats and hip thrusts. The VmaxPro® is considered to be a valid and reliable tool for the MCV assessment.

scholarly journals Relative validity of a 3 d estimated food record in German toddlers

2012 ◽  
Vol 16 (4) ◽  
pp. 645-652 ◽  
Author(s):  
Guo Cheng ◽  
Annett Hilbig ◽  
Claudia Drossard ◽  
Ute Alexy ◽  
Mathilde Kersting
Keyword(s):  
Ascorbic Acid ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Reference Method ◽  
Assessment Instrument ◽  
Dietary Intakes ◽  
Food Record ◽  
Nutrient Intakes ◽  
Relative Validity ◽  
Acid Intake

AbstractObjectiveTo determine the relative validity of a 3 d estimated food record (EFR) used to assess energy and nutrient intakes in toddlers, using a 3 d weighed food record (WDR) as the reference method.DesignParents reported the food and beverage intakes of their children using an EFR concurrently with a WDR over three consecutive days. Estimation of mean differences, Spearman correlation coefficients, cross-classifications and Bland–Altman plots were used to assess the agreement between the intakes of energy and fourteen nutrients obtained from the EFR and the WDR.SettingData obtained from a representative sample of infants or toddlers in Germany.SubjectsSixty-seven toddlers aged 10–36 months who had completed an EFR for a 3 d recording period that corresponded to the WDR were included in the present analysis.ResultsEnergy and nutrient intakes did not differ between the EFR and the WDR, except for linoleic acid and retinol. For all dietary intakes, Spearman rank correlation coefficients between the EFR and the WDR ranged from 0·35 to 0·80 (P ≤ 0·004). The proportion of participants correctly classified into quartiles ranged from 75 % for ascorbic acid intake to 96 % for Fe intake, and the percentage of misclassification was 9 % or less. The weighed κ values ranking the participants ranged from 0·23 for ascorbic acid intake to 0·59 for Fe intake. The Bland–Altman plots indicated a good agreement for all dietary intakes estimated from the EFR.ConclusionsOur study suggests that this EFR is a valid assessment instrument for estimating the energy and nutrient intakes among toddlers at the group level.

Test–Retest Reliability of Soccer Dribbling Tests in Children

2021 ◽  
pp. 1-7
Author(s):  
Michael J. Duncan ◽  
Darren Richardson ◽  
Rhys Morris ◽  
Emma Eyre ◽  
Neil D. Clarke
Keyword(s):  
Coefficient Of Variation ◽  
Pediatric Population ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Systematic Bias ◽  
Limits Of Agreement ◽  
Good Reliability ◽  
Retest Reliability ◽  
Intraclass Correlation Coefficients ◽  
Test Retest Reliability

The present study examined the test–retest reliability of the Ghent University dribbling test and short dribble test in a pediatric population. Fifty-four boys aged 9–14 years (mean ± SD = 11 ± 2 years) undertook the Ghent University and dribbling tests on two occasions separated by 2 weeks. Intraclass correlation coefficients, coefficient of variation, and 95% limits of agreement were conducted for each test. Intraclass correlation coefficients and coefficient of variation indicated good to excellent reliability, and relatively small variability for both dribbling tests. The 95% limits of agreement indicated relatively little bias Ghent University dribbling test for both running alone and running with the ball components, and the Bangsbo and Mohr short dribble test. The results of the present study suggest both dribbling tests examined in the present study demonstrate good reliability and low levels of systematic bias.

scholarly journals Evaluating Teamwork in a Simulated Obstetric Environment

2007 ◽  
Vol 106 (5) ◽  
pp. 907-915 ◽  
Author(s):  
Pamela J. Morgan ◽  
Richard Pittini ◽  
Glenn Regehr ◽  
Carol Marrs ◽  
Michèle F. Haley
Keyword(s):  
Rating Scale ◽  
Assessment Tool ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Obstetric Care ◽  
Global Rating Scale ◽  
Global Rating ◽  
Good Reliability ◽  
Domain Specific ◽  
Team Assessment

Background The National Confidential Enquiry into Maternal Deaths identified "lack of communication and teamwork" as a leading cause of substandard obstetric care. The authors used high-fidelity simulation to present obstetric scenarios for team assessment. Methods Obstetric nurses, physicians, and resident physicians were repeatedly assigned to teams of five or six, each team managing one of four scenarios. Each person participated in two or three scenarios with differently constructed teams. Participants and nine external raters rated the teams' performances using a Human Factors Rating Scale (HFRS) and a Global Rating Scale (GRS). Interrater reliability was determined using intraclass correlations and the Cronbach alpha. Analyses of variance were used to determine the reliability of the two measures, and effects of both scenario and rater profession (R.N. vs. M.D.) on scores. Pearson product-moment correlations were used to compare external with self-generated assessments. Results The average of nine external rater scores showed good reliability for both HFRS and GRS; however, the intraclass correlation coefficients for a single rater was low. There was some effect of rater profession on self-generated HFRS but not on GRS. An analysis of profession-specific subscores on the HFRS revealed no interaction between profession of rater and profession being rated. There was low correlation between externally and self-generated team assessments. Conclusions This study does not support the use of the HFRS for assessment of obstetric teams. The GRS shows promise as a summative but not a formative assessment tool. It is necessary to develop a domain specific behavioral marking system for obstetric teams.

Validity and Reliability of a New Device (WIMU®) for Measuring Hamstring Muscle Extensibility

2017 ◽  
Vol 38 (09) ◽  
pp. 691-695 ◽  
Author(s):  
José Muyor
Keyword(s):  
Standard Error ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Systematic Bias ◽  
Hamstring Muscle ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
New Device ◽  
Test Retest Reliability ◽  
Straight Leg Raise

AbstractThe aims of the current study were 1) to evaluate the validity of the WIMU® system for measuring hamstring muscle extensibility in the passive straight leg raise (PSLR) test using an inclinometer for the criterion and 2) to determine the test-retest reliability of the WIMU® system to measure hamstring muscle extensibility during the PSLR test. 55 subjects were evaluated on 2 separate occasions. Data from a Unilever inclinometer and WIMU® system were collected simultaneously. Intraclass correlation coefficients (ICCs) for the validity were very high (0.983–1); a very low systematic bias (−0.21°–−0.42°), random error (0.05°–0.04°) and standard error of the estimate (0.43°–0.34°) were observed (left–right leg, respectively) between the 2 devices (inclinometer and the WIMU® system). The R2 between the devices was 0.999 (p<0.001) in both the left and right legs. The test-retest reliability of the WIMU® system was excellent, with ICCs ranging from 0.972–0.995, low coefficients of variation (0.01%), and a low standard error of the estimate (0.19–0.31°). The WIMU® system showed strong concurrent validity and excellent test-retest reliability for the evaluation of hamstring muscle extensibility in the PSLR test.

scholarly journals Validity and Reliability of an Alternative Method for Measuring Power Output During Six-Second All-out Cycling

2014 ◽  
Vol 30 (4) ◽  
pp. 598-603 ◽  
Author(s):  
Martin Watson ◽  
Daniele Bibbo ◽  
Charles R. Duffy ◽  
Philip E. Riches ◽  
Silvia Conforto ◽  
...  
Keyword(s):  
Power Output ◽  
Angular Displacement ◽  
Exercise Physiology ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Force Transducer ◽  
Systematic Bias ◽  
Validity And Reliability ◽  
Maximal Power Output ◽  
The Difference

In a laboratory setting where both a mechanically-braked cycling ergometer and a motion analysis (MA) system are available, flywheel angular displacement can be estimated by using MA. The purpose of this investigation was to assess the validity and reliability of a MA method for measuring maximal power output (Pmax) in comparison with a force transducer (FT) method. Eight males and eight females undertook three identical sessions, separated by 4 to 6 days; the first being a familiarization session. Individuals performed three 6-second sprints against 50% of the maximal resistance to complete two pedal revolutions with a 3-minute rest between trials. Power was determined independently using both MA and FT analyses. Validity: MA recorded significantly higher Pmaxthan FT (P< .05). Bland–Altman plots showed that there was a systematic bias in the difference between the measures of the two systems. This difference increased as power increased. Repeatability: Intraclass correlation coefficients were on average 0.90 ± 0.05 in males and 0.85 ± 0.08 in females. Measuring Pmaxby MA, therefore, is as appropriate for use in exercise physiology research as Pmaxmeasured by FT, provided that a bias between these measurements methods is allowed for.

scholarly journals Validity and Reliability of a Short Diet Questionnaire to Estimate Dietary Intake in Older Adults in a Subsample of the Canadian Longitudinal Study on Aging

Nutrients ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1522 ◽  
Author(s):  
Anne Gilsing ◽  
Alexandra Mayhew ◽  
Hélène Payette ◽  
Bryna Shatenstein ◽  
Sharon Kirkpatrick ◽  
...  
Keyword(s):  
Longitudinal Study ◽  
Assessment Tool ◽  
Dietary Assessment ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Food Groups ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
System Usability Scale ◽  
Test Retest Reliability

This study assessed test-retest reliability and relative validity of the Short Diet Questionnaire (SDQ) and usability of an online 24 h recall among 232 participants (62 years ± 9.1; 49.6% female) from the Canadian Longitudinal Study on Aging (CLSA). Participants were asked to complete four 24 h dietary recalls (24HRs) using the Automated Self-Administered 24-h Dietary Assessment Tool (ASA24-Canada-2014), two SDQ administrations (prior to recalls one and four), and the System Usability Scale (SUS) for ASA24. For the SDQ administrations, Intraclass Correlation Coefficients ranged from 0.49 to 0.57 for nutrients and 0.35 to 0.72 for food groups. Mean intakes estimated from the SDQ were lower compared than those from the 24HRs. For nutrients, correlation coefficients were highest for fiber, calcium, and vitamin D (45–64 years: 0.59, 0.50, 0.51; >65 years: 0.29, 0.38, 0.49, p < 0.01); Kappas ranged from 0.14 to 0.37 in those 45–64 years and 0.17 to 0.32 in participants >65 years. Among the 70% who completed all recalls independently, the SUS indicated poor usability, though the majority reported feeling confident using ASA24. Overall, the SDQ captures intake with varying test-retest reliability and accuracy by nutrient and age. Further research is needed to inform use of a more comprehensive dietary measure in the CLSA.

scholarly journals Development and Relative Validity of a Semiquantitative Food Frequency Questionnaire to Estimate Dietary Intake among a Multi-Ethnic Population in the Malaysian Cohort Project

Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1163
Author(s):  
Suzana Shahar ◽  
Mohd Razif Shahril ◽  
Noraidatulakma Abdullah ◽  
Boekhtiar Borhanuddin ◽  
Mohd Arman Kamaruddin ◽  
...  
Keyword(s):  
Vitamin C ◽  
Correlation Coefficient ◽  
Food Frequency Questionnaire ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Weighted Kappa ◽  
Dietary Intakes ◽  
Food Frequency ◽  
Relative Validity ◽  
Spearman’S Correlation

Measuring dietary intakes in a multi-ethnic and multicultural setting, such as Malaysia, remains a challenge due to its diversity. This study aims to develop and evaluate the relative validity of an interviewer-administered food frequency questionnaire (FFQ) in assessing the habitual dietary exposure of The Malaysian Cohort (TMC) participants. We developed a nutrient database (with 203 items) based on various food consumption tables, and 803 participants were involved in this study. The output of the FFQ was then validated against three-day 24-h dietary recalls (n = 64). We assessed the relative validity and its agreement using various methods, such as Spearman’s correlation, weighed Kappa, intraclass correlation coefficient (ICC), and Bland–Altman analysis. Spearman’s correlation coefficient ranged from 0.24 (vitamin C) to 0.46 (carbohydrate), and almost all nutrients had correlation coefficients above 0.3, except for vitamin C and sodium. Intraclass correlation coefficients ranged from −0.01 (calcium) to 0.59 (carbohydrates), and weighted Kappa exceeded 0.4 for 50% of nutrients. In short, TMC’s FFQ appears to have good relative validity for the assessment of nutrient intake among its participants, as compared to the three-day 24-h dietary recalls. However, estimates for iron, vitamin A, and vitamin C should be interpreted with caution.

scholarly journals Relative validity and reliability of a diet risk score (DRS) for clinical practice

2020 ◽  
pp. bmjnph-2020-000134
Author(s):  
Emily A Johnston ◽  
Kristina S Petersen ◽  
Jeannette M Beasley ◽  
Tobias Krussig ◽  
Diane C Mitchell ◽  
...  
Keyword(s):  
Risk Score ◽  
Assessment Tool ◽  
High Reliability ◽  
Clinical Care ◽  
Random Order ◽  
Healthy Eating Index ◽  
Validity And Reliability ◽  
Relative Validity ◽  
Dietary Choices ◽  
Diet Assessment

IntroductionAdherence to cardioprotective dietary patterns can reduce risk for developing cardiometabolic disease. Rates of diet assessment and counselling by physicians are low. Use of a diet screener that rapidly identifies individuals at higher risk due to suboptimal dietary choices could increase diet assessment and brief counselling in clinical care.MethodsWe evaluated the relative validity and reliability of a 9-item diet risk score (DRS) based on the Healthy Eating Index (HEI)-2015, a comprehensive measure of diet quality calculated from a 160-item, validated food frequency questionnaire (FFQ). We hypothesised that DRS (0 (low risk) to 27 (high risk)) would inversely correlate with HEI-2015 score. Adults aged 35 to 75 years were recruited from a national research volunteer registry (ResearchMatch.org) and completed the DRS and FFQ in random order on one occasion. To measure reliability, participants repeated the DRS within 3 months.ResultsIn total, 126 adults (87% female) completed the study. Mean HEI-2015 score was 63.3 (95% CI: 61.1 to 65.4); mean DRS was 11.8 (95% CI: 10.8 to 12.8). DRS and HEI-2015 scores were inversely correlated (r=−0.6, p<0.001; R2=0.36). The DRS ranked 37% (n=47) of subjects in the same quintile, 41% (n=52) within ±1 quintile of the HEI-2015 (weighted κ: 0.28). The DRS had high reliability (n=102, ICC: 0.83). DRS mean completion time was 2 min.ConclusionsThe DRS is a brief diet assessment tool, validated against a FFQ, that can reliably identify patients with reported suboptimal intake. Future studies should evaluate the effectiveness of DRS-guided diet assessment in clinical care.Trial registration detailsClinicalTrials.gov (NCT03805373).

scholarly journals Reliability and Change in Erosion Measurements by High-Resolution peripheral Quantitative Computed Tomography in a Longitudinal Dataset of Rheumatoid Arthritis Patients

2020 ◽  
pp. jrheum.191391 ◽  
Author(s):  
Stephanie Finzel ◽  
Sarah L. Manske ◽  
Cheryl Barnabe ◽  
Andrew J. Burghardt ◽  
Hubert Marotte ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Computed Tomography ◽  
High Resolution ◽  
Intraclass Correlation ◽  
Quantitative Computed Tomography ◽  
Correlation Coefficients ◽  
Peripheral Quantitative Computed Tomography ◽  
Good Reliability ◽  
Change Over Time ◽  
Over Time

Objective The aim of this multi-reader exercise was to assess the reliability and change over time of erosion measurements in rheumatoid arthritis (RA) patients using high-resolution peripheral quantitative computed tomography (HR-pQCT). Methods HR-pQCT scans of 23 patients with RA were assessed at baseline and 12 months. Four experienced readers examined the dorsal, palmar, radial, and ulnar surfaces of the metacarpal head (MH) and phalangeal base (PB) of the 2nd and 3rd digits, blinded to time order. In total, 368 surfaces (23 patients x16 surfaces) were evaluated per time point to characterize cortical breaks as pathological (erosion) or physiological, and to quantify erosion width and depth. Reliability was evaluated by intraclass correlation coefficients (ICC), percentage agreement, and Light’s kappa; change over time was defined by means ± SD of erosion numbers and dimensions. Results ICCs for the mean measurements of width and depth of the pathological breaks ranged between 0.819 - 0.883, and 0.771 - 0.907 respectively. Most physiological cortical breaks were found at the palmar PB, whereas most pathological cortical breaks were located at the radial MH. There was a significant increase in both the numbers and the dimensions of erosions between baseline and follow-up (p=0.0001 for erosion numbers, width, and depth in axial plane, and p=0.001 for depth in perpendicular plane). Conclusion This exercise confirmed good reliability of HR-pQCT erosion measurements and their ability to detect change over time.

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