Norman (2007) Descriptive To provide a Inclusion: RCT Interventions = 47 Weight loss Motivational tips; 12/49 relevant descriptive and and BMI educational studies. Did not E-health evaluation of N= information; synthesize technology interactive second published in PA = 28-655; internet tailored quantitative data. generation scientific journal; diet = 72-1578; newsletters; Small to medium No restrictions PA; dietary combination = computerized effect sizes reported (from inception interventions to behavior or a assessment and across e-health to 2007) promote weight combination of feedback; studies. Findings loss both; baseline and Sample = unclear electronic inconclusive. Require OQAQ=13 follow-up but female forms; further studies to measures; participants diet analysis; chat understand underlying intervention PA = 64-100%; room; bulletin mechanisms feasibility or diet = 70-100%; board; promoting dietary and effectiveness; combination = internet video physical activity sessions; online behavior change meetings and predominately support; buddy white females program; animated fitness instructor; 24- hour help desk; reminders; goal setting; interactive (IMM); CD-ROM; interactive phone technology Reed (2011) Meta-analysis To investigate the Inclusion: RCT; Interventions = 13 Weight loss Paper diary; 7/11 relevant studies. influence of computer-based and BMI booklet; Computer-based Internet-based computer education or N= 1866 workbook; group interventions effective technology on support; therapy; in-person in weight loss but No restriction weight loss Sample = means sessions; only when used in date reported interventions comparison age = 49; 67% and phone addition to standard group; overweight female; counselling weight loss programs. OQAQ=17 or obese adults; predominately Sustaining weight loss weight or BMI white over time remains outcomes unclear
Norman (2007) Descriptive E-health technology No restrictions (from inception to 2007) OQAQ=13 To provide a descriptive evaluation of interactive second generation interventions to promote weight loss Inclusion: RCT and published in scientific journal; PA; dietary behavior or a combination of both; baseline and follow-up measures; intervention feasibility or effectiveness; Interventions = 47 N= PA = 28-655; diet = 72-1578; combination = Sample = unclear but female participants PA = 64-100%; diet = 70-100%; combination = predominately white females Weight loss and BMI Motivational tips; educational information; internet tailored newsletters; computerized assessment and feedback; electronic forms; diet analysis; chat room; bulletin board; internet video sessions; online meetings and support; buddy program; animated fitness instructor; 24- hour help desk; reminders; goal setting; interactive (IMM); CD-ROM; interactive phone technology 12/49 relevant studies. Did not synthesize quantitative data. Small to medium effect sizes reported across e-health studies. Findings inconclusive. Require further studies to understand underlying mechanisms promoting dietary and physical activity behavior change Reed (2011) Meta-analysis Internet-based No restriction date reported OQAQ=17 To investigate the influence of computer technology on weight loss interventions Inclusion: RCT; computer-based education or support; comparison group; overweight or obese adults; weight or BMI outcomes Interventions = 13 N= 1866 Sample = means age = 49; 67% female; predominately white Weight loss and BMI Paper diary; booklet; workbook; group therapy; in-person sessions; and phone counselling 7/11 relevant studies. Computer-based interventions effective in weight loss but only when used in addition to standard weight loss programs. Sustaining weight loss over time remains unclear
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