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Centre of Research in Childhood Health
Syddansk Universitet 1
Heidi Klakk,PT ,PhD Student, Centre of Research in Childhood Health, Southern University of Denmark.
How to Define Overweight and Obesity in Children ?
Data from The Childhood Health, Activity and Motor performance School Study
CHAMPS
A 3 year prospective cohorte study
baseline
Motor skills VO2max Anthropometri Beighton
Intervention for 3 school years
Fasting bloodsamples DXA scans Tanner Self ass Anthropometry
SMS track: registration of injuries and participation i leisure time sports
Sept. 2008
March 2009
Sept 2009
March 2010
Sept. 2010
March 2011
Questionaire on : Health, lifestyle, SES
Anthropometri Beighton
Motor skills VO2max Anthropometri Beighton
2 Syddansk Universitet
Motor skills VO2max Anthropometri Beighton
Motor skills VO2max Anthropometri Beighton Tanner self assesment Blood pressure
Motor skills VO2max Anthropometri Beighton
Fasting bloodsamples DXA scans Tanner Self ass Anthropometry
Accelerometry 1 week 1 winther and 1 summer
Planned publications…. 1. Prevalence of OW/OB with different measures 2. Deriving cut points for ”over fatness” from biological
endpoints 3. The effect of more PE on known risk factors for
metabolic imbalance 1. Fatness 2. Fitness 3. Blood parameters
4. Who benefits the most…..
Centre of Research in Childhood Health
Type of school Sport schools Normal schools
time baseline Follow up Δ baseline Follow up Δ
OW/OB children –BMI# • Boys • Girls • all
7%(n=10) 9% (n=13) 8%(n=23)
7%(n=9) 7%(n=11) 7% (n=20)
0% -2% -1%
9% (n=11) 9% (n=9) 9% (n=20)
14% (n=17) 12% (n=12) 13% (n=29)
+5% +3% +4%
Syddansk Universitet 4
Preliminary results on overweight and obesity in the CHAMPS study
OW/OB children- TBF%* • Boys • Girls • all
15% (n=20) 13% (n=19) 14% (n=39)
20%(n=27) 16%(n=24) 18%(n=51)
+5% +3% +4%
18%(n=22) 23%(n=22) 20%(n=44)
30%(n=36) 28%(n=27) 29%(n=63)
+12% +5% +9%
Syddansk Universitet 5
*OR adjusted for overweight at baseline, grade, gender and puberty
0,24 0,57
Freedman et al 2009
Syddansk Universitet 6
Age, y
boys
girls TBF
%
Steinberger et al 2005
• Correlation! • Agreement? • Sensitivity and
specificity!
Syddansk Universitet 7
Lindsay et al 2001
Syddansk Universitet 8
Males Females
Lindsay et al 2001
Syddansk Universitet 9
Females Males
Syddansk Universitet 10
Lindsay et al 2001
Syddansk Universitet 11
Neovius et al 2008
Neovius et al 2008
Syddansk Universitet 12
Correlation to CVD risk factors
Syddansk Universitet 13
Steinberger et al 2005
Lindsay RS et al 2001
Syddansk Universitet 14
Questions and challenges
Syddansk Universitet 15
• Despite good correlation BMI does not capture the fatness in children?
Do we need any more studies in different
measures of fatness in children?
• Stabilized BMI prevalence might ”hide” growing fatness end lowering lean mass in children?
How to design the analyzis of cut offs derived from biological
endpoints?
3D reklame A/S Svendborg
16 Syddansk Universitet