Maximal Cardiorespiratory Fitness Testing in Individuals With Chronic Stroke With Cognitive Impairment: Practice Test Effects and Test-Retest Reliability

AbstractDementia is a leading cause of morbidity and mortality without pharmacologic prevention or cure. Mounting evidence suggests that adherence to a Mediterranean dietary pattern may slow cognitive decline, and is important to characterise in at-risk cohorts. Thus, we determined the reliability and validity of the Mediterranean Diet and Culinary Index (MediCul), a new tool, among community-dwelling individuals with mild cognitive impairment (MCI). A total of sixty-eight participants (66 % female) aged 75·9 (sd 6·6) years, from the Study of Mental and Resistance Training study MCI cohort, completed the fifty-item MediCul at two time points, followed by a 3-d food record (FR). MediCul test–retest reliability was assessed using intra-class correlation coefficients (ICC), Bland–Altman plots and κ agreement within seventeen dietary element categories. Validity was assessed against the FR using the Bland–Altman method and nutrient trends across MediCul score tertiles. The mean MediCul score was 54·6/100·0, with few participants reaching thresholds for key Mediterranean foods. MediCul had very good test–retest reliability (ICC=0·93, 95 % CI 0·884, 0·954, P<0·0001) with fair-to-almost-perfect agreement for classifying elements within the same category. Validity was moderate with no systematic bias between methods of measurement, according to the regression coefficient (y=−2·30+0·17x) (95 % CI −0·027, 0·358; P=0·091). MediCul over-estimated the mean FR score by 6 %, with limits of agreement being under- and over-estimated by 11 and 23 %, respectively. Nutrient trends were significantly associated with increased MediCul scoring, consistent with a Mediterranean pattern. MediCul provides reliable and moderately valid information about Mediterranean diet adherence among older individuals with MCI, with potential application in future studies assessing relationships between diet and cognitive function.

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Test—retest reliability of the StepWatch Activity Monitor outputs in individuals with chronic stroke

Clinical Rehabilitation ◽

10.1177/0269215508092822 ◽

2008 ◽

Vol 22 (10-11) ◽

pp. 871-877 ◽

Cited By ~ 49

Author(s):

Suzie Mudge ◽

N. Susan Stott

Keyword(s):

Activity Monitor ◽

Chronic Stroke ◽

Retest Reliability ◽

Test Retest Reliability

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Validity and Reliability of Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS) in Indonesia and the Correlation with Quality of Life

Neurology Research International ◽

10.1155/2019/4290352 ◽

2019 ◽

Vol 2019 ◽

pp. 1-7

Author(s):

Riwanti Estiasari ◽

Yuhyi Fajrina ◽

Diatri Nari Lastri ◽

Syarli Melani ◽

Kartika Maharani ◽

...

Keyword(s):

Quality Of Life ◽

Multiple Sclerosis ◽

Cognitive Impairment ◽

Cognitive Function ◽

Cognitive Assessment ◽

Verbal Learning ◽

Retest Reliability ◽

Cognitive Evaluation ◽

Test Retest Reliability

Introduction. Multiple Sclerosis (MS) can affect cognitive function that might interfere with quality of life. Processing speed and memory are the most common area of cognitive impairment. Cognitive evaluation in daily practice is often difficult to be performed since it needs neuropsychological expert and is time-consuming. Brief International Cognitive Assessment for MS (BICAMS) is valid and practical for cognitive evaluation. This study aims to validate BICAMS in Indonesian MS patients and healthy controls (HC) and to analyse the effect of cognitive impairment on quality of life. Methods. BICAMS, which composes Symbol Digits Modalities Test (SDMT), California Verbal Learning Test-Second Edition (CVLT-II), and Brief Visuospatial Memory Test-Revised (BVMT-R), was translated and cross-culturally adapted to Indonesian from the original BICAMS and then administered to 40 Indonesian MS patients and 66 HC matched by sex, age, and education. Test-retest reliability was performed on 16-MS patients and 42 HC. Quality of life was measured using Multiple Sclerosis Quality of Life (MSQOL-54) instrument. Results. The SDMT, CVLT-II, and BVMT-R score in MS patients were significantly lower than those in HC (effect size, r: 0.61, 0.36, and 0.47, respectively). Test-retest reliability for all tests was satisfactory with correlation coefficient for SDMT, CVLT-II, and BVMT-R in MS subjects 0.86, 0.81, and 0.83, respectively. Using 5th percentile of HC score as cut-off, 15% MS subjects had impairment in one test, 27.5% in two tests, and 40% in three tests. BICAMS was moderately correlated with EDSS but was not correlated with disease duration and relapse rate. SDMT score correlated with physical function and physical and mental role limitation. Conclusion. BICAMS is valid and reliable for assessing cognitive function of Indonesia MS patients.

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The Reliability and Validity of the Safety Assessment of Function and the Environment for Rehabilitation (SAFER Tool)

British Journal of Occupational Therapy ◽

10.1177/030802269806100309 ◽

1998 ◽

Vol 61 (3) ◽

pp. 127-132 ◽

Cited By ~ 26

Author(s):

Lori Letts ◽

Sheri Scott ◽

Jill Burtney ◽

Linda Marshall ◽

Martha McKean

Keyword(s):

Cognitive Impairment ◽

Activities Of Daily Living ◽

Daily Living ◽

Safety Assessment ◽

Reliability And Validity ◽

Predictive Ability ◽

Retest Reliability ◽

Functional Activities ◽

Limited Variation ◽

Test Retest Reliability

The Safety Assessment of Function and the Environment for Rehabilitation (SAFER Too)) was developed to assess people's abilities to manage functional activities safety within their homes. The results of a study to evaluate the instruments inter-rater and test-retest reliability and construct validity are reported. Reliability was evaluated using kappa for each dichotomous item. For inter-rater reliability, 59 of 66 items had acceptable reliability. For test-retest reliability, 63 of 70 items had acceptable kappa scores. For items where kappa could not be calculated because of limited variation between raters, percentage agreement was over 80%. For validity, higher SAFER Tool scores (that is, more safety problems) were hypothesised to be associated with less independence in activities of daily living (ADL) and instrumental activities of daily living (IADL) and more cognitive impairment. The correlation between SAFER Tool scores and cognitive impairment supported this hypothesis. The results of the correlations with ADL and IADL scores were less clear. This could be attributed to caregivers' assistance with activities which might have reduced risk, and generally limited variation in ADL scores. The reliability results from this study are positive. Further research to assure the SAFER Tools validity and predictive ability are needed.

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P3-107: Test-retest reliability of task fMRI across three sessions in people with mild cognitive impairment

Alzheimer s & Dementia ◽

10.1016/j.jalz.2013.05.1178 ◽

2013 ◽

Vol 9 ◽

pp. P591-P592

Author(s):

Judy Pa ◽

Theodore Zanto ◽

Adam Gazzaley

Keyword(s):

Cognitive Impairment ◽

Mild Cognitive Impairment ◽

Retest Reliability ◽

Test Retest Reliability

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Validity and reliability of a clinical non-exercise method for assessment of cardiorespiratory fitness using seismocardiography

European Heart Journal ◽

10.1093/eurheartj/ehab724.3172 ◽

2021 ◽

Vol 42 (Supplement_1) ◽

Author(s):

M Thunestvedt Hansen ◽

T Roemer ◽

A Hoejgaard ◽

K Husted ◽

K Soerensen ◽

...

Keyword(s):

Cardiorespiratory Fitness ◽

Exercise Test ◽

Indirect Calorimetry ◽

Recording Device ◽

Private Company ◽

Retest Reliability ◽

Graded Exercise Test ◽

Graded Exercise ◽

Highly Correlated ◽

Test Retest Reliability

Abstract Introduction Low cardiorespiratory fitness expressed as a low maximal oxygen consumption (V̇O2max) is associated with cardiovascular disease and all-cause mortality (1). Thus, V̇O2max is recognised as an important clinical tool in the assessment of patients (1,2). However, assessment of V̇O2max by exercise testing is both physically demanding and methodologically challenging and hence the clinical applicability is limited. Purpose Therefore, the aim of this study was to investigate the accuracy and precision of a clinical non-exercise method for assessment of V̇O2max. Methods On three separate days 20 healthy men (n=10) and women (n=10) with varying age (22–72 years) and fitness levels performed two tests for determination of V̇O2max; (a) a non-exercise test using seismocardiography (SCG V̇O2max) and (b) a graded exercise test to voluntary exhaustion on a cycle ergometer based on indirect calorimetry (IC V̇O2max). These tests were performed in order to examine the day-to-day reliability and the validity of SCG V̇O2max, respectively. Furthermore, SCG V̇O2max was assessed twice on each test day to investigate test-retest reliability. The SCG V̇O2max was performed in prone position following a short resting period by placing the SCG recording device on the xiphisternal joint with double adhesive tape. V̇O2max was assessed during a 5-minute recording of the sternal movement using SCG in combination with demographic data of the participants (3). In addition, body composition was measured and a resting blood sample collected each test day. Results On average SCG V̇O2max was 3.3±2.4 ml/min/kg (mean ± 95% CI) lower than IC V̇O2max (p=0.013, SCG V̇O2max: 36.6±3.3 ml/min/kg, IC V̇O2max: 39.9±3.0 ml/min/kg). A significant positive correlation was found between SCG V̇O2max and IC V̇O2max (Pearson, r=0.72, p<0.001). Both SCG V̇O2max and IC V̇O2max was similar between test days (p=0.972) and the intra-individual coefficient of variation was 4.5±2.9% and 4.0±2.5%, respectively. Within each test day SCG V̇O2max was highly correlated (r=0.99, p<0.0001) and no difference was observed between tests (p=0.993). Conclusions The accuracy of the current non-exercise assessment of cardiorespiratory fitness based on seismocardiography is not optimal as SCG V̇O2max was systematically lower than the gold standard assessment applying indirect calorimetry during a graded exercise test. Despite the abovementioned difference, SCG V̇O2max and IC V̇O2max were highly correlated. Furthermore, the precision of SCG V̇O2max is very high as both day-to-day and test-retest reliability were high. FUNDunding Acknowledgement Type of funding sources: Private company. Main funding source(s): VentriJect ApS, Copenhagen, Denmark

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Test-retest reliability of physical activity questionnaires in Parkinson’s disease

BMC Neurology ◽

10.1186/s12883-021-02426-y ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Samuel Ånfors ◽

Ann-Sofi Kammerlind ◽

Maria H. Nilsson

Keyword(s):

Physical Activity ◽

Parkinson’S Disease ◽

Parkinson's Disease ◽

Cognitive Impairment ◽

Weighted Kappa ◽

Activity Level ◽

Single Item ◽

Retest Reliability ◽

Activity Questionnaires ◽

Test Retest Reliability

Abstract Background People with Parkinson’s disease are less physically active than controls. It is important to promote physical activity, which can be assessed using different methods. Subjective measures include physical activity questionnaires, which are easy and cheap to administer in clinical practice. Knowledge of the psychometric properties of physical activity questionnaires for people with Parkinson’s disease is limited. The aim of this study was to evaluate the test-retest reliability of physical activity questionnaires in individuals with Parkinson’s disease without cognitive impairment. Methods Forty-nine individuals with Parkinson’s disease without cognitive impairment participated in a test-retest reliability study. At two outpatient visits 8 days apart, the participants completed comprehensive questionnaires and single-item questions: International Physical Activity Questionnaire-Short Form (IPAQ-SF), Physical Activity Scale for the Elderly (PASE), Saltin-Grimby Physical Activity Level Scale (SGPALS) and Health on Equal Terms (HOET). Test-retest reliability was evaluated using the intraclass correlation coefficient (ICC), standard error of measurement (SEM), limits of agreement, weighted kappa or the Svensson method. Results Several of the physical activity questionnaires had relatively low test-retest reliability, including the comprehensive questionnaires (IPAQ-SF and PASE). Total physical activity according to IPAQ-SF had an ICC value of 0.46 (95% confidence interval [CI], 0.21–0.66) and SEM was 2891 MET-min/week. The PASE total score had an ICC value of 0.66 (95% CI, 0.46–0.79), whereas the SEM was 30 points. The single-item scales of SGPALS-past six months (SGPALS-6 m) and HOET question 1 (HOET-q1) with longer time frames (6 or 12 months, respectively) showed better results. Weighted kappa values were 0.64 (95% CI, 0.45–0.83) for SGPALS-6 m and 0.60 (95% CI, 0.39–0.80) for HOET-q1, whereas the single-item questions with a shorter recall period had kappa values < 0.40. Conclusions Single-item questions with a longer time frame (6 or 12 months) for physical activity were shown to be more reliable than multi-item questionnaires such as the IPAQ-SF and PASE in individuals with Parkinson’s disease without cognitive impairments. There is a need to develop a core outcome set to measure physical activity in people with Parkinson’s disease, and there might be a need to develop new physical activity questionnaires.

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A self-administered, artificial intelligence (AI) platform for cognitive assessment in multiple sclerosis (MS)

10.21203/rs.2.10768/v5 ◽

2020 ◽

Cited By ~ 1

Author(s):

Seyed-Mahdi Khaligh-Razavi ◽

Maryam Sadeghi ◽

Mahdiyeh Khanbagi ◽

Chris Kalafatis ◽

Seyed Massood Nabavi

Keyword(s):

Multiple Sclerosis ◽

Cognitive Impairment ◽

Cognitive Dysfunction ◽

Cognitive Assessment ◽

Cognitive Rehabilitation ◽

Convergent Validity ◽

Strong Association ◽

Therapeutic Interventions ◽

Retest Reliability ◽

Test Retest Reliability

Abstract Background Cognitive impairment is common in patients with multiple sclerosis (MS). Accurate and repeatable measures of cognition have the potential to be used as markers of disease activity. Methods We developed a 5-minute computerized test to measure cognitive dysfunction in patients with MS. The proposed test – named the Integrated Cognitive Assessment (ICA) – is self-administered and language-independent. 91 MS patients and 83 healthy controls (HC) took part in Substudy 1, in which each participant took the ICA test and the Brief International Cognitive Assessment for MS (BICAMS). We assessed ICA’s test-retest reliability, its correlation with BICAMS, its sensitivity to discriminate patients with MS from the HC group, and its accuracy in detecting cognitive dysfunction. In Substudy 2, we recruited 48 MS patients, 38 of which had received an 8-week physical and cognitive rehabilitation programme and 10 MS patients who did not. We examined the association between the level of serum neurofilament light (NfL) in these patients and their ICA scores and Symbol Digit Modalities Test (SDMT) scores pre- and post-rehabilitation. Results The ICA demonstrated excellent test-retest reliability (r=0.94), with no learning bias, and showed a high level of convergent validity with BICAMS. The ICA was sensitive in discriminating the MS patients from the HC group, and demonstrated high accuracy (AUC = 95%) in discriminating cognitively normal from cognitively impaired participants. Additionally, we found a strong association (r=-0.79) between ICA score and the level of NfL in MS patients before and after rehabilitation. Conclusions The ICA has the potential to be used as a digital marker of cognitive impairment and to monitor response to therapeutic interventions. In comparison to standard cognitive tools for MS, the ICA is shorter in duration, does not show a learning bias, and is independent of language.

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