Validity and reliability of activity measures in African-American girls for GEMS.
PURPOSE: To determine the reliability and validity of physical activity monitors and self-report instruments suitable for young African-American girls. METHODS: A validation study was conducted by the Girls health Enrichment Multi-site Studies (GEMS) research team to compare an accelerometer with a...
| Publicado en: | Medicine & Science in Sports & Exercise Vol. 35; no. 3; pp. 532 - 540 |
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| Autores principales: | , , , , , , , , , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Lippincott Williams & Wilkins
2003 Mar
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106784615&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106784615 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01959131 4DP jtl: Medicine & Science in Sports & Exercise issn: 01959131 maglogo: N pubinfo: dt: 2003 Mar vid: 35 iid: 3 pid: 433 pub: Lippincott Williams & Wilkins place: Baltimore, Maryland artinfo: ui: 106784615 106784615 2003160493 10.1249/01.mss.0000053702.03884.3f NLM12618587 106784615 ppf: 532 ppct: 8 formats: tig: atl: Validity and reliability of activity measures in African-American girls for GEMS. aug: au: Treuth MS Sherwood NE Butte NF McClanahan B Obarzanek E Zhou A Ayers C Adolph A Jordan J Jacobs DR Jr. Rochon J affil: Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe Street, Baltimore, MD 21205; mtreuth@jhsph.edu sug: subj: Physical Activity Evaluation Clinical Assessment Tools Instrument Validation Equipment Reliability African Americans In Infancy and Childhood Female Child Child Health Reliability and Validity Self Report In Infancy and Childhood Validation Studies Accelerometry In Infancy and Childhood Biophysical Instruments In Infancy and Childhood Questionnaires Body Mass Index Evaluation Intraclass Correlation Coefficient Pearson's Correlation Coefficient Sedentary Behavior In Infancy and Childhood Time Factors Statistical Significance Tennessee Texas Minnesota Descriptive Statistics Body Weights and Measures In Infancy and Childhood Diaries In Infancy and Childhood Mathematics Data Analysis Software Analysis of Covariance Paired T-Tests Power Analysis Post Hoc Analysis kappa Statistic Funding Source Human Child: 6-12 years Female ab: PURPOSE: To determine the reliability and validity of physical activity monitors and self-report instruments suitable for young African-American girls. METHODS: A validation study was conducted by the Girls health Enrichment Multi-site Studies (GEMS) research team to compare an accelerometer with a pedometer and two self-report instruments for assessing physical activity in African-American girls, age 8-9 yr. Girls (N= 68) attended two clinic visits spaced 4 d apart. Each girl wore a MTI/CSA accelerometer (used as the criterion standard for validity) and a pedometer simultaneously for four consecutive days. Girls completed on two occasions a 24-h physical activity checklist of yesterday and usual activities, including sedentary activities (GEMS Activity Questionnaire, GAQ), and a 3-d computerized self-report instrument (Activitygram). RESULTS: Girls were (mean +/- SD) 9.0 +/- 0.6 yr old and had a body mass index of 19.4 kg x m. Reliability measured by intraclass correlations (ICC) and Pearson correlation coefficients (r) were calculated for the MTI/CSA (ICC = 0.37, P< 0.0001), pedometer (ICC = 0.08, = 0.094), Activitygram (ICC = 0.24) (P = 0.005), and GAQ for physical (r = 0.80, P< 0.0001) and sedentary (r = 0.3-0.5, P< 0.005) activities. Significant Pearson correlations between the MTI/CSA and the other instruments, as a measure of validity, were observed for the 4-d average pedometer score (r = 0.47, P< 0.0001), 3-d average Activitygram score (r = 0.37, P= 0.002), and the average of the two yesterday and two usual GAQ activity scores for a subset of 18 physical activities questions (r = 0.27, = 0.03; and r = 0.29,P = 0.02, respectively). The MTI/CSA was uncorrelated with single day scores from the three other instruments. CONCLUSION: The reliability of the instruments tested was acceptable, except the pedometer. Validity correlations were significant when more than one day was used. Self-report instruments need further development for improved reliability and validity. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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