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Table 1 The MYLIFE study design: assessment and scheduling of baseline, follow-up visits and intervention sessions

From: A family-centered lifestyle intervention to improve body composition and bone mass in overweight and obese children 6 through 8 years: a randomized controlled trial study protocol

  Baseline 3-mo 6-mo 9-mo 12-mo
Blood sampled a
Anthropometry b
Body composition assessment      
DXA c      
  Whole-body
Bone assessments      
DXA d      
  Whole-body
  Lumbar spine vertebrae 1-4 (AP and AP-Lateral)    
  Total hip    
  Forearm (1/3 distal radius)    
pQCT e      
  Radius (%: 4, 66)    
  Tibia (%: 4, 14, 38, 66)    
Muscle function f
Questionnaires      
  Family Health (FHQ)     
  Child Health (CHQ)
  Child Intention (CIQ)
Baseline education g h h h h
Interventions              
Lifestyle intervention End of Mo 1 2 3 4 5 6 7 8 9 10 11 12
Intervention groups          
Control group i             
  1. a Includes: Glucose, HbA1C, insulin, calcium, CBC-profile, lipid-profile, AST/ ALT, C-reactive protein, Estradiol, LH.
  2. b Includes: Weight, height, BMI, waist circumference, blood pressure, pulse and skin pigmentation by spectrophotometer (CM-700d/600d, Konica Minolta, Ramsey, NJ, USA).
  3. c Body composition assessed by DXA to yield: total mass (g), fat mass (g), lean + BMC (g) % BF, Android/ Gynoid ratio.
  4. d DXA measures of bone to yield: bone area (cm2), BMC (g), BMD (g/cm3).
  5. e pQCT measures both bone content [i.e. cortical density (mg/cm3)] and geometry [i.e. cortical area (mm2)].
  6. f Force plate assessment: jumping (force, power), sit-to-stand (force, power) and balance.
  7. g Basic Education: Performed by a registered dietitian; a basic review of nutrition and PA guide.
  8. h A dietitian is always present to answer questions and deal with age changes if in control.
  9. i Control group receives the 6 lifestyle interventions after completion of 12 mo of study.