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.
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.
Authors: Mai J M Chinapaw; Lidwine B Mokkink; Mireille N M van Poppel; Willem van Mechelen; Caroline B Terwee Journal: Sports Med Date: 2010-07-01 Impact factor: 11.136
Authors: A Gómez-Bruton; A González-Agüero; A Gómez-Cabello; A Matute-Llorente; J A Casajús; G Vicente-Rodríguez Journal: Osteoporos Int Date: 2015-12-22 Impact factor: 4.507
Authors: Thomas A Farley; Rebecca A Meriwether; Erin T Baker; Liza T Watkins; Carolyn C Johnson; Larry S Webber Journal: Am J Public Health Date: 2007-07-31 Impact factor: 9.308
Authors: Suzanne D Baxter; David B Hitchcock; Caroline H Guinn; Kate K Vaadi; Megan P Puryear; Julie A Royer; Kerry L McIver; Marsha Dowda; Russell R Pate; Dawn K Wilson Journal: J Acad Nutr Diet Date: 2014-04-24 Impact factor: 4.910
Authors: John B Bartholomew; Esbelle M Jowers; Vanessa L Errisuriz; Sharon Vaughn; Gregory Roberts Journal: Contemp Clin Trials Date: 2017-07-22 Impact factor: 2.226
Authors: Lorraine B Robbins; Karin A Pfeiffer; Kimberly S Maier; Yun-Jia Lo; Stacey M Wesolek Ladrig Journal: J Sch Nurs Date: 2012-04-03 Impact factor: 2.835
Authors: Robert G McMurray; Kimberly B Ring; Margarita S Treuth; Gregory J Welk; Russell R Pate; Kathryn H Schmitz; Julie L Pickrel; Vivian Gonzalez; M Jaoa C A Almedia; Deborah Rohm Young; James F Sallis Journal: Med Sci Sports Exerc Date: 2004-12 Impact factor: 5.411
Authors: Christina D Economos; Erin Hennessy; Jennifer M Sacheck; M Kyla Shea; Elena N Naumova Journal: BMC Musculoskelet Disord Date: 2010-08-31 Impact factor: 2.362