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In a randomized clinical trial, researchers compared the effectiveness of a 6-month child-centered physical-activity program, a parent-centered dietary-modification program, or both interventions in 165 prepubertal overweight children (age range 5.5–9.9 years) in Australia. Both interventions included weekly 2-hour face-to-face sessions for 10 weeks and a monthly relapse-prevention program available by telephone for 3 months.
At 24 months, mean body-mass index (BMI) z scores were significantly reduced in all three groups, with significantly greater reductions in the combined intervention and parent-centered diet intervention groups than in the child-centered activity intervention group. Waist circumference and most metabolic outcomes also we…