Use of Extrinsic Motivators to Improve the BMI of Obese or Overweight Adolescents: Systematic Review

Ana Gonçalves   ^{1, 2} , MD ;   Pedro Augusto Simões   ^{2, 3} , MD, PhD ;   Bernardo Sousa-Pinto   ^{4, 5} , MD, PhD ;   Tiago Taveira-Gomes   ⁵ , MD, PhD

¹ Faculty of Medicine, Universidade do Porto, Porto, Portugal

² Faculty of Health Sciences, University of Beira Interior, Covilha, Portugal

³ Health Sciences Research Centre - University of Beira Interior, University of Beira Interior, Covilha, Portugal

⁴ Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine of the University of Porto, Porto, Portugal

⁵ Centre for Health Technology and Services Research, Health Research Network, Faculty of Medicine of the University of Porto, Porto, Portugal