scholarly journals Validity of Multisensor Array for Measuring Energy Expenditure of an Activity Bout in Early Stroke Survivors

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Sharon Flora Kramer ◽  
Liam Johnson ◽  
Julie Bernhardt ◽  
Toby Cumming
Keyword(s):  
Energy Expenditure ◽  
Correlation Coefficients ◽  
Stroke Survivors ◽  
Walking Ability ◽  
Validity And Reliability ◽  
Step Counts ◽  
Sit To Stand ◽  
Activity Bout ◽  
Test Retest Reliability ◽  
Early Stroke

Introduction. Stroke survivors use more energy than healthy people during activities such as walking, which has consequences for the way exercise is prescribed for stroke survivors. There is a need for wearable device that can validly measure energy expenditure (EE) of activity to inform exercise prescription early after stroke. We aimed to determine the validity and reliability of the SenseWear-Armband (SWA) to measure EE and step-counts during activity <1 month after stroke. Materials and Methods. EE was measured using the SWA and metabolic cart and steps-counts were measured using the SWA and direct observation. Based on walking ability, participants performed 2x six-minute walks or repeated sit-to-stands. Concurrent validity and test-retest reliability were determined by calculating intraclass and concordance correlation coefficients. Results and Discussion. Thirteen participants walked; nine performed sit-to-stands. Validity of the SWA measuring EE for both activities was poor (ICC/CCC < 0.40). The SWA overestimates EE during walking and underestimated EE during sit-to-stands. Test-retest agreement showed an ICC/CCC of <0.40 and >0.75 for walking and sit-to-stand, respectively. However, agreement levels changed with increasing EE levels (i.e., proportional bias). The SWA did not accurately measure step-counts. Conclusion. The SWA should be used with caution to measure EE of activity of mild to moderate stroke survivors <1 month after stroke.

scholarly journals Estimation of Metabolic Energy Expenditure during Short Walking Bouts

2021 ◽  
Author(s):  
Ilse Johanna Blokland ◽  
Jos J. de Koning ◽  
Thomas van Kan ◽  
Coen A. M. van Bennekom ◽  
Jaap H. van Dieen ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Steady State ◽  
Energy Expenditure ◽  
Correlation Coefficients ◽  
Metabolic Energy ◽  
Strongly Correlated ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Metabolic Energy Expenditure

AbstractAssessment of metabolic energy expenditure from indirect calorimetry is currently limited to sustained (>4 min) cyclic activities, because of steady-state requirements. This is problematic for patient populations who are unable to perform such sustained activities. Therefore, this study explores validity and reliability of a method estimating metabolic energy expenditure based on oxygen consumption (V̇O2) during short walking bouts. Twelve able-bodied adults twice performed six treadmill walking trials (1, 2 and 6 min at 4 and 5 km/h), while V̇O2 was measured. Total V̇O2 was calculated by integrating net V̇O2 over walking and recovery. Concurrent validity with steady-state V̇O2 was assessed with Pearson’s correlations. Test-retest reliability was assessed using intra-class correlation coefficients (ICC) and Bland-Altman analyses. Total V̇O2 was strongly correlated with steady-state V̇O2 (r=0.91–0.99), but consistently higher. Test-retest reliability of total V̇O2 (ICC=0.65–0.92) was lower than or comparable to steady-state V̇O2 (ICC=0.83–0.92), with lower reliability for shorter trials. Total V̇O2 discriminated between gait speeds. Total oxygen uptake provides a useful measure to estimate metabolic load of short activities from oxygen consumption. Although estimates are less reliable than steady-state measurements, they can provide insight in the yet unknown metabolic demands of daily activities for patient populations unable to perform sustained activities.

scholarly journals Comparison of Accuracy Among Pedometers from Five Japanese Manufacturers

2013 ◽  
Vol 6 (1) ◽  
pp. 56-61
Author(s):  
So Osawa ◽  
Hisaaki Tabuchi ◽  
Kenichi Nemoto ◽  
Shuhei Tokimasa ◽  
Shotaro Misaki ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Energy Expenditure ◽  
Body Mass ◽  
Correlation Coefficients ◽  
Step Counts ◽  
Actual Amount ◽  
Daily Exercise ◽  
All Speeds ◽  
Walking Speeds

The reliability of commercially available pedometers is not known in detail. Therefore, the present study examines the accuracy and reliability of the FS500 (Acos), HJ301 (Omron), EX700 (Yamax), FB727 (Tanita) and TW600 (Citizen) pedometers to count steps and measure energy expenditure at various walking speeds. Twenty individuals (age, 32.5 ± 15.3 years; body mass index, 22.0 ± 1.6 kg/m2) walked at three speeds for 6 min. Step-counts and energy expenditure determined by each pedometer were compared with actual values. All five pedometers accurately measured steps at all speeds, but tended to underestimate expended calories to within 50% of the actual amount of energy expenditure. The correlation coefficients (R) between actual energy expenditure and pedometer values were between 0.74 and 0.87. Thus, feedback about energy expenditure is somewhat inaccurate. In contrast, step counts are very accurate, and thus pedometers are useful tools with which to indicate daily exercise levels.

scholarly journals The Trojan Lifetime Champions Health Survey: Development, Validity, and Reliability

2015 ◽  
Vol 50 (4) ◽  
pp. 407-418 ◽  
Author(s):  
Shawn C. Sorenson ◽  
Russell Romano ◽  
Robin M. Scholefield ◽  
E. Todd Schroeder ◽  
Stanley P. Azen ◽  
...  
Keyword(s):  
Health Survey ◽  
Content Validity ◽  
Correlation Coefficients ◽  
Collegiate Athletes ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Parallel Form ◽  
Competitive Athletes ◽  
Clinical Interest ◽  
Test Retest Reliability

Context Self-report questionnaires are an important method of evaluating lifespan health, exercise, and health-related quality of life (HRQL) outcomes among elite, competitive athletes. Few instruments, however, have undergone formal characterization of their psychometric properties within this population. Objective To evaluate the validity and reliability of a novel health and exercise questionnaire, the Trojan Lifetime Champions (TLC) Health Survey. Design Descriptive laboratory study. Setting A large National Collegiate Athletic Association Division I university. Patients or Other Participants A total of 63 university alumni (age range, 24 to 84 years), including former varsity collegiate athletes and a control group of nonathletes. Intervention(s) Participants completed the TLC Health Survey twice at a mean interval of 23 days with randomization to the paper or electronic version of the instrument. Main Outcome Measure(s) Content validity, feasibility of administration, test-retest reliability, parallel-form reliability between paper and electronic forms, and estimates of systematic and typical error versus differences of clinical interest were assessed across a broad range of health, exercise, and HRQL measures. Results Correlation coefficients, including intraclass correlation coefficients (ICCs) for continuous variables and κ agreement statistics for ordinal variables, for test-retest reliability averaged 0.86, 0.90, 0.80, and 0.74 for HRQL, lifetime health, recent health, and exercise variables, respectively. Correlation coefficients, again ICCs and κ, for parallel-form reliability (ie, equivalence) between paper and electronic versions averaged 0.90, 0.85, 0.85, and 0.81 for HRQL, lifetime health, recent health, and exercise variables, respectively. Typical measurement error was less than the a priori thresholds of clinical interest, and we found minimal evidence of systematic test-retest error. We found strong evidence of content validity, convergent construct validity with the Short-Form 12 Version 2 HRQL instrument, and feasibility of administration in an elite, competitive athletic population. Conclusions These data suggest that the TLC Health Survey is a valid and reliable instrument for assessing lifetime and recent health, exercise, and HRQL, among elite competitive athletes. Generalizability of the instrument may be enhanced by additional, larger-scale studies in diverse populations.

Psychometric Properties of the IPAQ: A Validation Study in a Sample of Northern Franco-Ontarians

2009 ◽  
Vol 6 (s1) ◽  
pp. S54-S60 ◽  
Author(s):  
Alain P. Gauthier ◽  
Michel Lariviere ◽  
Nancy Young
Keyword(s):  
Physical Activity ◽  
Psychometric Properties ◽  
Convergent Validity ◽  
Correlation Coefficients ◽  
Total Activity ◽  
French Canadians ◽  
Northern Ontario ◽  
Step Counts ◽  
Canadian French ◽  
Test Retest Reliability

Background:The International Physical Activity Questionnaire (IPAQ) has received significant attention since the late 1990s. As it currently stands, its long version has been translated in English, German, Icelandic, Korean, Polish, Spanish, Turkish, and Vietnamese. However no data originating from the self-administered long version (last 7 days) of the IPAQ (IPAQ-SALV) is available for French Canadians. This study developed a self-administered long version (last 7 days) of the IPAQ in Canadian French (IPAQ-SALVCF) and assessed its psychometric properties.Methods:The original IPAQ-SALV was linguistically translated, back-translated, and then reviewed in a focus group to ensure its meaning had been retained. Data were collected on a sample of 34 Francophones from Northern Ontario, and the results compared with step counts assessed by 7-day pedometer recording. Test-retest reliability was examined with a 24-hour delay between questionnaire completion on day 8 and day 9 of the protocol. Convergent validity was assessed by comparing IPAQ-SALVCF (last 7 days) results to average step counts over a 7-day period.Results:Intra-class correlation coefficients (ICC) revealed that the IPAQ-SALVCF results were stable between days. The ICC for total activity scores was highest at 0.93 (CI: 0.86 to 0.97). Total activity scores were also significantly related to pedometer step counts (Pearson r = .66 P < .01). These results confirm those obtained in prior researchConclusion:The IPAQ-SALVCF is a reliable and valid measure of physical activity for French Canadians.

scholarly journals Validity and Reliability of a New Inertial Device for Monitoring Range of Motion at the Pelvis during Sexual Intercourse

2020 ◽  
Vol 17 (8) ◽  
pp. 2884 ◽  
Author(s):  
José M. Oliva-Lozano ◽  
Isabel Martín-Fuentes ◽  
José M. Muyor
Keyword(s):  
Range Of Motion ◽  
Sexual Intercourse ◽  
Gold Standard ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Validity And Reliability ◽  
Intraclass Correlation Coefficients ◽  
Non Invasive ◽  
Fast Pace ◽  
Test Retest Reliability

To understand the physical demands of sexual intercourse, it is necessary to monitor the kinematic parameters of this activity using relatively non-invasive technology. The aims of this study are to analyze the validity and reliability of an inertial device for monitoring the range of motion at the pelvis during simulated intercourse and compare the range of motion (ROM). Twenty-six adults were monitored during intercourse using an inertial device (WIMU) and a motion capture system (gold standard) in a test that consisted of 4 sets of 20 simulated in–out cycles (IOC) in missionary and cowgirl positions. Men and women were tested separately in a laboratory setting for simulated intercourse aims. There were no differences between the WIMU and the gold standard system at fast pace (p > 0.05), whereas there were differences at slow pace (~2.04°; p ≤ 0.05; d = 0.17). Intraclass correlation coefficients (ICCs) for the relationship between systems was very close to 1 at both paces (slow: 0.981; fast: 0.998). The test–retest reliability analysis did not show any difference between sets of measurements. In conclusion, WIMU could be considered as a valid and reliable device for IOC range of motion monitoring during sexual intercourse in missionary and cowgirl positions.

scholarly journals Validity and Reliability of the Community Balance and Mobility Scale in Individuals With Knee Osteoarthritis

2014 ◽  
Vol 94 (6) ◽  
pp. 866-874 ◽  
Author(s):  
Judit Takacs ◽  
S. Jayne Garland ◽  
Mark G. Carpenter ◽  
Michael A. Hunt
Keyword(s):  
Knee Osteoarthritis ◽  
Convergent Validity ◽  
Dynamic Balance ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Validity And Reliability ◽  
Cross Sectional ◽  
Retest Reliability ◽  
Knee Oa ◽  
Test Retest Reliability

Background There is a high incidence of falls in older adults with knee osteoarthritis (OA). Adequate dynamic balance and mobility reduce the risk of falls; however, there are currently no validated, advanced tests of dynamic balance and mobility for individuals with knee OA. Objective The purpose of this study was to determine the convergent validity, known-groups validity, and test-retest reliability of a dynamic test of balance and mobility, the Community Balance and Mobility Scale (CB&M), in a knee OA population. Design A cross-sectional design was used. Methods Twenty-five individuals aged 50 years and older with medial knee OA and an equal number of healthy controls completed the CB&M and other tests of balance and mobility, including the Berg Balance Scale, the Timed “Up & Go” Test, a test of maximal single-leg stance time, and the 10-Meter Walk Test (self-selected and fast walking speed). Convergent validity of balance tests with the CB&M was assessed using Pearson product moment correlation coefficients, and known-groups validity was assessed using independent t tests. Test-retest reliability of the CB&M was assessed using intraclass correlation coefficients (ICCs) and standard error of measurement (SEM). Results Scores on the CB&M were significantly correlated with all measures of balance and mobility for those with knee OA. There were significant differences in CB&M scores between groups. Scores on the CB&M were highly reliable in people with knee OA (ICC=.95, 95% confidence interval [95% CI]=0.70 to 0.99; SEM=3, 95% CI=2.68 to 4.67). Limitations Few participants had severe knee OA. Conclusions The CB&M displayed moderate convergent validity, excellent known-groups validity, and high test-retest reliability. The CB&M can be used as a valid and reliable tool to assess dynamic balance and mobility deficits in people with knee OA.

scholarly journals PO-211 Reliability and Validity of Measuring Energy Expenditure in Inline and Shuttle Running with Honor and Lifesense Fitness Wristbands

2018 ◽  
Vol 1 (5) ◽  
Author(s):  
Liankai Ge ◽  
Kaixuan Wang ◽  
Xiaotian Li ◽  
Lu Jin ◽  
Xinxin Wang ◽  
...  
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Human Activities ◽  
Respiratory Quotient ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Reliability Test ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Acceptable Reliability

Objective Energy expenditure is an indicator that comprehensively reflects the amount of physical activity. Fitness wristbands are used to monitor the energy expenditure of human activities in the fitness field. Among the fitness wristbands popular in China, Honor and Lifesense rank in the top list. However, there was no research on the reliability and validity of these two wristbands in measuring the energy expenditure. This study aims to evalute the reliability and validity of the two fitness wristbands (Honor and Lifesense) in measuring the energy expenditure in inline and shuttle running. Methods 18 male collegiate students (age: 22.4±2.5yrs, height: 177±7cm, mass: 69.3.±8.4kg) volunteered to participate in two four-stage incremental inline running tests (8km/h, 10km/h, 12km/h, 14km/h) and two 20m four-stage incremental shuttle running test (6km/h, 8km/h, 10km/h, 12km/h). The duration of each stage was 5 min, and intermittent per stage was 1 min. Honor B3（GMN-BX9, Honor, China） and Lifesense Mombo2（LS417-B, Lifesense, China）fitness wristbands was utilized to measure the energy expenditure of each stage in incremental inline and shuttle running. A portable spirometric system (K4b2, Cosmed, Italy) was utilized to measure the ventilator information during the test. The energy expenditure was converted into equivalent units (kcal) according to the measured respiratory quotient coefficient. The repeat measuremented reliability test was carried out on the energy expenditure indicators measured by the fitness wristbands in the twice incremental inline running and the shuttle running. The energy expenditure calculated by the portable gas metabolic instrument was comparedwith those  measured by Honor and Lifesense fitness wristbands. Results The result test-retest reliability found that the Honor and Lifesense fitness wristbands had well correlations between the two tests at a speed of 8km/h, 10km/h, 12km/h in inline running, and 8km/h, and 10km/h in shuttle running (r=0.44~0.93, P<0.05), but the correlation was not well at 6km/h in shuttle running (r<0.43, P>0.05). The Honor wristband correlation (r=0.83~0.93, P<0.05) was higher than the Lifesense fitness wristbands (r=0.44~0.60, P<0.05) at 8km/h, 10km/h, and 12km/h in inline running and at 8km/h, and 10km/h in shuttle running. The correlation coefficients of the two fitness wristbands at 8km/h and 10km/h in inline running (r=0.52~0.93, P<0.05) were both higher than those in shuttle running (r=0.44~0.83, P<0.05). The energy expenditure measured by K4b2 and the two kinds fitnees wristband was significantly different (P<0.05), except at 12km/h in inline running and 10km/h in shuttle running (P > 0.05).  Conclusions Honor and Lifesense wristbands have acceptable reliability in measuring energy expenditure at 8, 10, 12km/h in inline and shuttle running, with the fore slightly higher than the after. The two wristbands have higher reliability in measuring the energy expenditure in inline running than in shuttle running. The validity of measuring the energy expenditure with the two fitness wristbands is acceptable at 12km/h in inline running and at 10km/h in shuttle running, but not at other speed.

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 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.

Resourcing an evolution of roles in general-practice: a study to determine the validity and reliability of tools to assist nurses and patients to assess physical activity

2016 ◽  
Vol 22 (6) ◽  
pp. 505
Author(s):  
Shona N. Dutton ◽  
Adrian Bauman ◽  
Sarah M. Dennis ◽  
Nicholas Zwar ◽  
Mark F. Harris
Keyword(s):  
Physical Activity ◽  
General Practice ◽  
Intraclass Correlation ◽  
Management Strategies ◽  
Correlation Coefficients ◽  
Validity And Reliability ◽  
Physical Activity Questionnaire ◽  
Practice Nurses ◽  
Test Retest Reliability ◽  
Activity Questionnaire

Traditionally, GPs have been responsible for physical activity (PA) assessment within the general practice setting. Multiple questionnaires are available to support uptake of PA assessment but less than 30% of patients are assessed. A range of barriers hamper uptake. Evidence indicates that practice nurses (PNs) and patients are resourceful members of the general practice team but have been underutilised. This study assessed the validity and reliability of two instruments for assessing PA, administered by PNs and patients. The study aimed to identify robust tool(s) to support the evolving role of PNs and patients in prevention and management strategies in general practice. A purposive sample of PNs and patients from general practices in Sydney was invited to participate. The results of the PN- or patient-administered general practice physical activity questionnaire (GPPAQ) and the three-question physical activity questionnaire (3Q) were compared against accelerometer activity. The study examined agreement in classification of PA levels according to Australian PA recommendations. Validity showed low–moderate correlations between accelerometer and GPPAQ (rho=0.26), 3Q (rho=0.45). Seven-day test-retest reliability intraclass correlation coefficients (ICCs) were 0.82–0.95 for GGPAQ and 0.94–0.98 for 3Q. Agreement with PA recommendations was moderate for GPPAQ (kappa 0.73, 95% CI, 0.56–0.85) and fair for 3Q (kappa 0.62, 95% CI, 0.47–0.78). Although 3Q demonstrated higher correlation with accelerometry, GPPAQ demonstrated higher agreement with PA guidelines. Given GPPAQ showed reasonable rigour, it may prove useful for PN and patient use.

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