Validation of the Fitbit Zip and Fitbit Flex with pregnant women in free-living conditions

References

• Muktabhant B, Lawrie TA, Lumbiganon P, et al. Diet or exercise, or both, for preventing excessive weight gain in pregnancy. Cochrane Database Syst Rev. 2015. DOI:10.1002/14651858.CD007145.pub3
   PubMed Web of Science ®Google Scholar
• Yu Y, Xie R, Shen C, et al. Effect of exercise during pregnancy to prevent gestational diabetes mellitus: a systematic review and meta-analysis. J Matern Fetal Neonatal Med. 2018;31(12):1632?1637.
   Web of Science ®Google Scholar
• Magro-Malosso E, Saccone G, Di Tommaso M, et al. Exercise during pregnancy and risk of gestational hypertensive disorders: a systematic review and meta-analysis. Acta Obstet Gynecol Scand. 2017;96:921–931.
   PubMed Web of Science ®Google Scholar
• Wiebe HW, Boulé NG, Chari R, et al. The effect of supervised prenatal exercise on fetal growth: a meta-analysis. Can J Diabetes. 2014;38:S64.
   Google Scholar
• Evenson KR, Barakat R, Brown WJ, et al. Guidelines for physical activity during pregnancy: comparisons from around the world. Am J Lifestyle Med. 2014;8:102–121.
   PubMedGoogle Scholar
• Nascimento SL, Surita FG, Godoy AC, et al. Physical activity patterns and factors related to exercise during pregnancy: a cross sectional study. PLoS One. 2015;10:e0128953.
   PubMed Web of Science ®Google Scholar
• Lee J-M, Kim Y, Welk GJ. Validity of consumer-based physical activity monitors. Med Sci Sports Exerc. 2014;46:1840–1848.
   PubMed Web of Science ®Google Scholar
• Sallis JF. Measuring physical activity: practical approaches for program evaluation in Native American communities. JPHMP. 2010;16:404–410.
   Google Scholar
• Club industry staff. Fitness Devices to Dominate the Wearables Market until 2018. USA 2014 [cited. 2017]. Available from: http://www.clubindustry.com/studies/fitness-devices-dominate-wearables-market-until-2018. Assessed 15 May, 2017.
   Google Scholar
• Comstock J. 21 clinical trials that are using activity trackers right now. USA 2016 [cited 2017 May 8th]. Available from: http://www.mobihealthnews.com/content/21-clinical-trials-are-using-fitbit-activity-trackers-right-now.
   Google Scholar
• Evenson KR, Goto MM, Furberg RD. Systematic review of the validity and reliability of consumer-wearable activity trackers. Int J Behav Nutr Phys Act. 2015;12:159.
   PubMed Web of Science ®Google Scholar
• Schneider M, Chau L. Validation of the Fitbit Zip for monitoring physical activity among free-living adolescents. BMC Res Notes. 2016;9:448.
   PubMedGoogle Scholar
• An H-S, Jones GC, Kang S-K, et al. How valid are wearable physical activity trackers for measuring steps? Eur J Sport Sci. 2017;17:360–368.
   PubMed Web of Science ®Google Scholar
• Chu AH, Ng SH, Paknezhad M, et al. Comparison of wrist-worn Fitbit Flex and waist-worn ActiGraph for measuring steps in free-living adults. PLoS One. 2017;12:e0172535.
   PubMed Web of Science ®Google Scholar
• Redenius NA, Concurrent validity of the fitbit flex personal activity monitor and actigraph GT3X + in free-living setting. ProQuest Dissertations and Theses: North Dakota State University of Agriculture and Applied Science; 2016.
   Google Scholar
• Sushames A, Edwards A, Thompson F, et al. Validity and reliability of fitbit flex for step count, moderate to vigorous physical activity and activity energy expenditure. PLoS One. 2016;11:e0161224.
   PubMed Web of Science ®Google Scholar
• FitbitInc. Fitbit Zip; activity tracker. Canada 2017 [cited 2017 May 8]. Available from: https://www.fitbit.com/fr-ca/shop/zip
   Google Scholar
• FitbitInc. Fitbit Flex; fitness wristband. Canada 2017 [cited 2017]. Available from: https://www.fitbit.com/fr/shop/flex
   Google Scholar
• Cain KL, Geremia CM. Accelerometer data collection and scoring manual. San Diego; 2012. Available from: http://sallis.ucsd.edu/measures.html. [cited 2017 May 8].
   Google Scholar
• Harrison CL, Thompson RG, Teede HJ, et al. Measuring physical activity during pregnancy. Int J Behav Nutr Phys Act. 2011;8:19.
   PubMed Web of Science ®Google Scholar
• Rousham E, Clarke P, Gross H. Significant changes in physical activity among pregnant women in the UK as assessed by accelerometry and self-reported activity. Eur J Clin Nutr. 2005;60:393–400.
   Web of Science ®Google Scholar
• Colley RC, Garriguet D, Janssen I, et al. Physical activity of Canadian adults: accelerometer results from the 2007 to 2009 Canadian Health Measures Survey. Health Reports. 2011;22:7.
   PubMed Web of Science ®Google Scholar
• Freedson PS, Melanson E, Sirard J. Calibration of the Computer Science and Applications, Inc. accelerometer. Med Sci Sports Exerc. 1998;30:777–781.
   PubMed Web of Science ®Google Scholar
• Tudor-Locke C, Bassett DR. How many steps/day are enough? Preliminary pedometer indices for public health Sports Med. 2004;34:1–8.
   PubMed Web of Science ®Google Scholar
• Imboden MT, Nelson MB, Kaminsky LA, et al. Comparison of four Fitbit and Jawbone activity monitors with a research-grade ActiGraph accelerometer for estimating physical activity and energy expenditure. Br J Sports Med. 2017;52(13):844–850.
   Web of Science ®Google Scholar
• Phillips LJ, Petroski GF, Markis NE. A comparison of accelerometer accuracy in older adults. Res Gerontol Nurs. 2015;8:213–219.
   PubMed Web of Science ®Google Scholar
• Aguiar L, Santos-Rocha R, Vieira F, et al. Comparison between overweight due to pregnancy and due to added weight to simulate body mass distribution in pregnancy. Gait Posture. 2015;42:511–517.
   PubMed Web of Science ®Google Scholar
• DiNallo JM, Downs DS, Masurier GL. Objectively assessing treadmill walking during the second and third pregnancy trimesters. J Phys Act Health. 2012;9:21–28.
   PubMed Web of Science ®Google Scholar
• Tudor-Locke C, Barreira TV, Schuna Jr JM. Comparison of step outputs for waist and wrist accelerometer attachment sites. Med Sci Sports Exerc. 2015;47:839–842.
   PubMed Web of Science ®Google Scholar
• Rosenberger ME, Haskell WL, Albinali F, et al. Estimating activity and sedentary behavior from an accelerometer on the hip or wrist. Med Sci Sports Exerc. 2013;45:964.
   PubMed Web of Science ®Google Scholar