@article{MummSchefflerHermanussen2014,
  author    = {Mumm, Rebekka and Scheffler, Christiane and Hermanussen, Michael},
  title     = {Developing differential height, weight and body mass index references for girls that reflect the impact of the menarche},
  series = {Acta paediatrica : nurturing the child},
  volume    = {103},
  journal   = {Acta paediatrica : nurturing the child},
  number    = {7},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0803-5253},
  doi       = {10.1111/apa.12625},
  pages     = {e312 -- e316},
  year      = {2014},
  abstract  = {Aim Growth is both a matter of amplitude and tempo. We aimed to develop references for body height, body weight and body mass index (BMI) with respect to tempo of maturity. Methods Data obtained from the German KiGGS study (2003-2006) on body height, body weight and presence or absence of the menarche were re-analysed in 3776 girls, aged 10-17years. We developed smoothed centiles for BMI-, body-height- and body-weight-for-age using the LMS method for premenarcheal and postmenarcheal girls. Results Body height, body weight and BMI differed significantly between premenarcheal and postmenarcheal girls. On average, postmenarcheal girls aged 11-17years were 5.3cm taller and 9.7kg heavier, and their BMI was 2.9kg/m2 higher than in premenarcheal girls of the same calendar age. Conclusion Adolescent BMI rises with calendar age and biological age. New reference charts for adolescent girls aged 10-18years were generated to be inserted into the currently used references to avoid misclassifying underweight and overweight pubertal girls.},
  language  = {en}
}
@article{MummHermanussenScheffler2016,
  author    = {Mumm, Rebekka and Hermanussen, Michael and Scheffler, Christiane},
  title     = {voice break as the marker of biological age},
  series = {Acta paediatrica : nurturing the child},
  volume    = {105},
  journal   = {Acta paediatrica : nurturing the child},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0803-5253},
  doi       = {10.1111/apa.13488},
  pages     = {e459 -- e463},
  year      = {2016},
  abstract  = {Aim: We aimed to develop the first references for body height, body weight and body mass index (BMI) for boys based on the individual developmental tempo with respect to their voice break status. Methods: We re-analysed data from the German Health Interview and Examination Survey for Children and Adolescents (KiGGS study) on body height, body weight and body mass index based on the voice break, or mutation, in 3956 boys aged 10-17 years. We used the LMS method to construct smoothed references centiles for the studied variables in premutational, mutational and postmutational boys. Results: Body height, body weight and BMI differed significantly (p < 0.001) between the different stages of voice break. On average, boys were 5.9 cm taller, 5.8 kg heavier and had a 0.7 kg/m(2) higher BMI with every higher stage of voice break. Currently used growth references for chronological age in comparison with maturity-related references led to an average of 5.4\% of boys being falsely classified as overweight.},
  language  = {en}
}
@article{PawellekZiegeldorfWulff2022,
  author    = {Pawellek, Sabine and Ziegeldorf, Alexandra and Wulff, Hagen},
  title     = {Strategien und Effekte digitaler Interventionen bei der {\"U}bergewichts- und Adipositastherapie von Kindern und Jugendlichen},
  series = {Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz},
  volume    = {65},
  journal   = {Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz},
  number    = {5},
  publisher = {Springer},
  address   = {Berlin ; Heidelberg},
  issn      = {1436-9990},
  doi       = {10.1007/s00103-022-03512-3},
  pages     = {624 -- 634},
  year      = {2022},
  abstract  = {Background Rising obesity prevalence in childhood and adolescence are characterized by unhealthy lifestyles such as low physical activity due to high media use. Recent studies use the accessibility of this target group through digital media, whereby technologies represent new approaches in the intervention design of weight reduction. However, the question arises as to which digital combinations and methodological program concepts condition effective body mass index (BMI) changes. Aim To gain insights into effective program design and media use; digital intervention strategies for BMI reduction in overweight and obese children and adolescents will be analyzed and evaluated. Methods A systematic review was conducted in the databases MEDLINE via PubMed, Science Direct, and Web of Science to analyze studies from 2016 to 2021 on changes in BMI and BMI z-score of overweight and obese 6- to 18-year-olds. Methodological study quality was assessed according to the Cochrane Risk of Bias guidelines. Results From 3974 studies, seven articles describing the use of fitness wristbands, smartphones, and computer-based programs were identified. All media achieved BMI reductions, with smartphone interventions via calls and messages causing the most significant changes. Discussion Smartphones as providers of digital programs (e.g., apps) offer effective approaches to obesity reduction. Based on the data, the selection and combination of several media as well as the relevance of family involvement and the methodological foundation of the measures are confirmed. Due to the young age of the participants, media interventions must be made accessible to the target group.},
  language  = {de}
}