Reliability of the 7-Day Physical Activity Recall in a Biracial Group of Inactive and Active Adults

2006 ◽  
Vol 3 (4) ◽  
pp. 423-438 ◽  
Author(s):  
Leslie A. Pruitt ◽  
Abby C. King ◽  
Eva Obarzanek ◽  
Michael Miller ◽  
Mary O’Toole ◽  
...  
Keyword(s):  
Physical Activity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Intraclass Correlation Coefficients ◽  
Gender And Age ◽  
Diverse Groups ◽  
White Adults ◽  
Active Adults ◽  
Physical Activity Recall ◽  
Acceptable Reliability

Background:Physical activity recall (PAR) reliability was estimated in a three-site sample of African American and white adults. The sample was sedentary at baseline and more varied in physical activity 24 months later. Intraclass correlation coefficients (ICCs) were used to estimate the number of PAR assessments necessary to obtain a reliability of 0.70 at both timepoints.Methods:The PAR was administered ≤ 30 d apart at baseline (n = 547) and 24 months (n = 648). Energy expenditure ICC was calculated by race, gender, and age.Results:Baseline reliability was low for all groups with 4–16 PARs estimated to attain reliable data. ICCs at 24 months were similar (ICC = 0.54–0.55) for race and age group, with 2–3 PARs estimated to reach acceptable reliability. At 24 months, women were more reliable reporters than men.Conclusion:Low sample variability in activity reduced reliability, highlighting the importance of evaluating diverse groups. Despite evaluating a sample with greater physical activity variability, an estimated 2–3 PARs were necessary to obtain acceptable reliability.

scholarly journals Alberta Infant Motor Scale: Reliability and Validity When Used on Preterm Infants in Taiwan

2000 ◽  
Vol 80 (2) ◽  
pp. 168-178 ◽  
Author(s):  
Suh-Fang Jeng ◽  
Kuo-Inn Tsou Yau ◽  
Li-Chiou Chen ◽  
Shu-Fang Hsiao
Keyword(s):  
Preterm Infants ◽  
Interrater Reliability ◽  
Physical Therapist ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Intraclass Correlation Coefficients ◽  
Scale Reliability ◽  
Scale Scores ◽  
Acceptable Reliability

Abstract Background and Purpose. The goal of this study was to examine the reliability and validity of measurements obtained with the Alberta Infant Motor Scale (AIMS) for evaluation of preterm infants in Taiwan. Subjects. Two independent groups of preterm infants were used to investigate the reliability (n=45) and validity (n=41) for the AIMS. Methods. In the reliability study, the AIMS was administered to the infants by a physical therapist, and infant performance was videotaped. The performance was then rescored by the same therapist and by 2 other therapists to examine the intrarater and interrater reliability. In the validity study, the AIMS and the Bayley Motor Scale were administered to the infants at 6 and 12 months of age to examine criterion-related validity. Results. Intraclass correlation coefficients (ICCs) for intrarater and interrater reliability of measurements obtained with the AIMS were high (ICC=.97–.99). The AIMS scores correlated with the Bayley Motor Scale scores at 6 and 12 months (r=.78 and .90), although the AIMS scores at 6 months were only moderately predictive of the motor function at 12 months (r=.56). Conclusion and Discussion. The results suggest that measurements obtained with the AIMS have acceptable reliability and concurrent validity but limited predictive value for evaluating preterm Taiwanese infants.

Using Pedometers to Estimate Ambulatory Physical Activity in Vietnam

2011 ◽  
Vol 8 (1) ◽  
pp. 52-61 ◽  
Author(s):  
Au Bich Thuy ◽  
Leigh Blizzard ◽  
Michael Schmidt ◽  
Costan Magnussen ◽  
Emily Hansen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Concurrent Validity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Population Based ◽  
Work Activities ◽  
Intraclass Correlation Coefficients ◽  
Significant Difference ◽  
Day Of The Week ◽  
Population Based Survey

Background:Pedometer measurement of physical activity (PA) has been shown to be reliable and valid in industrialized populations, but its applicability in economically developing Vietnam remains untested. This study assessed the feasibility, stability and validity of pedometer estimates of PA in Vietnam.Methods:250 adults from a population-based survey were randomly selected to wear Yamax pedometers and record activities for 7 consecutive days. Stability and concurrent validity were assessed using intraclass correlation coefficients (ICC) and Spearman correlation coefficients.Results:Overall, 97.6% of participants provided at least 1 day of usable recordings, and 76.2% wore pedometers for all 7 days. Only 5.2% of the sample participants were involved in work activities not measurable by pedometer. The number of steps increased with hours of wear. There was no significant difference between weekday and weekend in number of steps, and at least 3 days of recordings were required (ICC of the 3 days of recordings: men 0.96, women 0.97). Steps per hour were moderately correlated (men r = .42, women r = .26) with record estimates of total PA.Conclusions:It is feasible to use pedometers to estimate PA in Vietnam. The measure should involve at least 3 days of recording irrespective of day of the week.

Measuring Physical Activity in Juvenile Idiopathic Arthritis: Activity Diary Versus Accelerometer

2017 ◽  
Vol 44 (8) ◽  
pp. 1249-1256 ◽  
Author(s):  
Wineke Armbrust ◽  
G.J.F. Joyce Bos ◽  
Jan H.B. Geertzen ◽  
Pieter J.J. Sauer ◽  
Pieter U. Dijkstra ◽  
...  
Keyword(s):  
Physical Activity ◽  
Juvenile Idiopathic Arthritis ◽  
Effect Size ◽  
Convergent Validity ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Accelerometer Data ◽  
Individual Level ◽  
Intraclass Correlation Coefficients ◽  
Activity Diary

Objective.(1) To determine convergent validity of an activity diary (AD) and accelerometer (Actical brand/Phillips-Respironics) in measuring physical activity (PA) in children with juvenile idiopathic arthritis (JIA). (2) To determine how many days give reliable results. (3) To analyze effects of correcting accelerometer data for non-wear.Methods.Patients with JIA (8–13 yrs) were recruited from 3 Dutch pediatric rheumatology centers. PA was assessed for 7 days with an AD and accelerometer, and was expressed as mean min/day of rest, light PA (LPA), moderate to vigorous PA (MVPA), and PA level (PAL). To analyze convergent validity, intraclass correlation coefficients (ICC) were calculated and paired sample Student t tests were performed. The required number of days to achieve reliable results was calculated using the Spearman-Brown prophecy formula.Results.Convergent validity between AD and accelerometer was moderate for rest and PAL (ICC 0.41). ICC for LPA and MVPA were < 0.24. AD overestimated PAL and MVPA compared with the accelerometer. Wearing the accelerometer 7–19 days gave reliable PA estimates on group and individual levels. For the AD, 13–36 days were needed. Adjusting accelerometer data for non-wear resulted in a clinically relevant higher mean number of min/day spent in LPA (effect size 1.12), but not in MVPA (effect size 0.44).Conclusion.Convergent validity between AD and accelerometer is moderate to poor. In children with JIA, 1-week assessment with an accelerometer is sufficient to measure PA (all levels) reliably. On an individual level and for clinical use, 3 weeks are required. Additional use of AD enables correction for non-wear of accelerometer data.

Accuracy of Pedometers and Walking Activity in Adults with Mental Retardation

2004 ◽  
Vol 21 (2) ◽  
pp. 167-179 ◽  
Author(s):  
Heidi I. Stanish
Keyword(s):  
Physical Activity ◽  
Gender Differences ◽  
Down Syndrome ◽  
Mental Retardation ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Step Counts ◽  
Intraclass Correlation Coefficients ◽  
Walking Activity ◽  
Individuals With Mental Retardation

Walking is a common physical activity reported by individuals with mental retardation (MR). This study examined the accuracy and feasibility of pedometers for monitoring walking in 20 adults with MR. Also, step counts and distance walked were recorded for one week. Pedometer counts were highly consistent with actual step counts during normal and fast paced walking on two ground surfaces. Intraclass correlation coefficients were above .95. A t-test revealed no gender differences in walking activity. A 2 × 2 ANOVA indicated that participants with Down Syndrome (DS) accumulated significantly fewer step counts than those without DS and participants walked more on weekdays than weekends.

Assessment of Physical Activity in Adults: A Review of Validated Questionnaires From a Nutritionist’s Point of View

2020 ◽  
Vol 43 (4) ◽  
pp. 235-254
Author(s):  
Angela Patricia Bacelis-Rivero ◽  
Anabel Vázquez-Rodríguez ◽  
Claudia E. Carrasco-Legleu ◽  
Lidia G. De León ◽  
Sandra Alicia Reza-López
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Epidemiological Studies ◽  
Point Of View ◽  
Eligibility Criteria ◽  
Good Reliability ◽  
Intraclass Correlation Coefficients

Physical activity (PA) is a component of total energy expenditure. PA and PA energy expenditure (PAEE) can be estimated by objective techniques (OTs). However, the use of questionnaires is frequent in clinical settings and epidemiological studies. We conducted a search on PubMed, Scopus, and Google Scholar databases to perform a review of studies reporting the reliability and validity of PA questionnaires validated against OTs—doubly labeled water (DLW) or accelerometers—in free-living adults. We selected original articles published between 2009 and 2019 that reported validation studies of PA questionnaires. We identified 53 studies that fulfilled the eligibility criteria. Four PA questionnaires were validated against DLW and the remaining against accelerometers. Three questionnaires were compared with both DLW and accelerometer results. The correlation between questionnaire-estimated PAEE and DLW results ranged from r = .22 to r = .46, while that between questionnaire-estimated total PA (TPA) and accelerometer results ranged from r = .11 to r = .54 The intraclass correlation coefficients were between .56 and .84. Despite having good reliability, most of the questionnaires included in this review have shown limited validity for estimating TPA in adults. OTs should be considered as a first option, when possible. Further research is warranted on techniques to obtain more accurate PA and PAEE estimates.

Reliability of an Audit Tool for Systematic Assessment of Urban Alleyways

2010 ◽  
Vol 7 (2) ◽  
pp. 214-223 ◽  
Author(s):  
Mona Seymour ◽  
Kim D. Reynolds ◽  
Jennifer Wolch
Keyword(s):  
Los Angeles ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Audit Tool ◽  
Substantial Agreement ◽  
Systematic Assessment ◽  
Intraclass Correlation Coefficients ◽  
Continuous Response ◽  
Promising Tool ◽  
Acceptable Reliability

Background:Reliable audit tools are needed to examine the potential of built environment features for physical activity.Methods:An audit tool for alley environments was developed with land use, substrate, and use, condition, and safety items. Two audit teams independently audited 29 Los Angeles alleys, and interteam reliability was calculated with Cohen’s and prevalence-adjusted, bias-adjusted kappa (PABAK) statistics; intraclass correlation coefficients; and percent observed agreement.Results:Forty-two of 47 dichotomous items analyzed for reliability had PABAK values ≥ 0.61 (“substantial agreement”). Sixteen of 23 ordinal and continuous response items analyzed had ICCs ≥ 0.61, and an additional 6 with lower ICC values had observed agreement ≥ 79%. Items concerning the presence or absence of use-related alley features demonstrated the lowest reliability.Conclusions:The instrument has acceptable reliability for most of its items and appears to be a promising tool for use by other researchers and professionals in the measurement of alley environments.

Development and Reliability and Validity Testing of an Audit Tool for Trail/Path Characteristics: The Path Environment Audit Tool (PEAT)

2006 ◽  
Vol 3 (s1) ◽  
pp. S158-S175 ◽  
Author(s):  
Philip J. Troped ◽  
Ellen K. Cromley ◽  
Maren S. Fragala ◽  
Steven J. Melly ◽  
Hope H. Hasbrouck ◽  
...  
Keyword(s):  
Gold Standard ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Correlation Coefficients ◽  
Audit Tool ◽  
Validity Testing ◽  
Intraclass Correlation Coefficients ◽  
Observer Reliability ◽  
Acceptable Reliability

Background:To determine how trail characteristics may influence use, reliable and valid audit tools are needed.Methods:The Path Environment Audit Tool (PEAT) was developed with design, amenity, and aesthetics/maintenance items. Two observers independently audited 185 trail segments at 6 Massachusetts facilities. GPS-derived items were used as a “gold standard.” Kappa (k) statistics, observed agreement and intraclass correlation coefficients (ICCs) were calculated to assess inter-observer reliability and validity.Results:Fifteen of 16 primary amenity items had k-values ≥ 0.49 (“moderate”) and all had observed agreement ≥ 81%. Seven binary design items had k-values ranging from 0.19 to 0.71 and three of 5 ordinal items had ICCs ≥ 0.52. Only two aesthetics/maintenance items (n = 7) had moderate ICCs. Observed agreement between PEAT and GPS items was ≥ 0.77; k-values were ≥ 0.57 for 7 out of 10 comparisons.Conclusions:PEAT has acceptable reliability for most of its primary items and appears ready for use by researchers and practitioners.

scholarly journals Knee Extensor Strength Measurement in Patients With Limited Physical Activity Using a Supine Dynamometer Anchoring Frame

2020 ◽  
Vol 44 (6) ◽  
pp. 502-509
Author(s):  
Min-Yong Lee ◽  
Kwan-Sik Sung ◽  
Hyungsuk Ham ◽  
You Gyoung Yi ◽  
Hyung-Ik Shin
Keyword(s):  
Physical Activity ◽  
Intraclass Correlation ◽  
Knee Extensor ◽  
Correlation Coefficients ◽  
Isometric Strength ◽  
Intraclass Correlation Coefficients ◽  
Knee Extensor Strength ◽  
Anchoring System ◽  
Seated Posture ◽  
Limited Physical Activity

Objective To investigate the reliability of knee extensor strength measurements using a supine hand-held dynamometer (HHD) anchoring frame in patients with limited physical activity. Although an HHD is suitable for bedside use, its inter-rater reliability is low because measurements can be influenced by tester strength.Methods Maximal knee extensor isometric strength was measured using an HHD anchored to the supine frame. Three trials of three maximal contractions were assessed by two raters.Results A total of 33 inpatients who were non-ambulatory due to acute illness participated in the study. The intraclass correlation coefficients were 0.974 (inter-rater) and 0.959 (intra-rater). The minimal detectable changes in intra- and inter-observer measurements were 29.46 N (24.10%) and 36.73 N (29.26%), respectively. The limits of agreement ranged from -19.79% to 24.81% for intra-rater agreement and from -21.45% to 37.07% for inter-rater agreement.Conclusion The portable dynamometer anchoring system can measure the isometric strength of the knee extensor reliably in the supine position, and could be used for measurements in patients who have difficulty visiting the laboratory and maintaining a seated posture.

Crime and Physical Activity: Development of a Conceptual Framework and Measures

2019 ◽  
Vol 16 (10) ◽  
pp. 818-829
Author(s):  
Christina M. Patch ◽  
Caterina G. Roman ◽  
Terry L. Conway ◽  
Ralph B. Taylor ◽  
Kavita A. Gavand ◽  
...  
Keyword(s):  
Physical Activity ◽  
Conceptual Framework ◽  
Intraclass Correlation ◽  
Age Groups ◽  
Correlation Coefficients ◽  
Major Barrier ◽  
Retest Reliability ◽  
Intraclass Correlation Coefficients ◽  
Test Retest Reliability ◽  
Middle Aged Adults

Background: A common hypothesis is that crime is a major barrier to physical activity, but research does not consistently support this assumption. This article advances research on crime-related safety and physical activity by developing a multilevel conceptual framework and reliable measures applicable across age groups. Methods: Criminologists and physical activity researchers collaborated to develop a conceptual framework. Survey development involved qualitative data collection and resulted in 155 items and 26 scales. Intraclass correlation coefficients (ICCs) were computed to assess test–retest reliability in a subsample of participants (N = 176). Analyses were conducted separately by age groups. Results: Test–retest reliability for most scales (63 of 104 ICCs across 4 age groups) was “excellent” or “good” (ICC ≥ .60) and only 18 ICCs were “poor” (ICC < .40). Reliability varied by age group. Adolescents (aged 12–17 y) had ICCs above the .40 threshold for 21 of 26 scales (81%). Young adults (aged 18–39 y) and middle-aged adults (aged 40–65 y) had ICCs above .40 for 24 (92%) and 23 (88%) scales, respectively. Older adults (aged 66 y and older) had ICCs above .40 for 18 of 26 scales (69%). Conclusions: The conceptual framework and reliable measures can be used to clarify the inconclusive relationships between crime-related safety and physical activity.

Measuring Physical Activity of Elementary School Children With Unsealed Pedometers: Compliance, Reliability, and Reactivity

2015 ◽  
Vol 23 (2) ◽  
pp. 271-286 ◽  
Author(s):  
Jiying Ling ◽  
Kristi M. King
Keyword(s):  
Physical Activity ◽  
Elementary School ◽  
School Children ◽  
Self Efficacy ◽  
Elementary School Children ◽  
Parental Influence ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Children's Perceptions ◽  
Intraclass Correlation Coefficients

Background and Purpose: Evidence of compliance, reliability, and reactivity of using pedometers in children remains inconsistent. This study aimed to examine these aspects of unsealed pedometers. Methods: There were 133 children who wore pedometers for 7 days. A subsample of 50 children completed surveys measuring self-efficacy, enjoyment, parental influence, and environment on Day 1 and 8. Investigator presence and incentives were used to increase compliance. Results: About 87% of children returned pedometers, with 62% wearing pedometers for 4 days or longer. The intraclass correlation coefficients ranged from .70 to .87, with ICC for 4-day pedometer steps exceeding .80. Wearing pedometers did not change pedometer steps nor alter children’s perceptions of self-efficacy, enjoyment, parental influence, and environment significantly. Conclusions: Children were compliant wearing pedometers, and there was no reactivity from wearing them.

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