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The effect of a physical activity consultation in the management of adolescent excess weight: results from a non‐randomized controlled trial
Publication . Videira-Silva, Antonio; Hetherington-Rauth, Megan; Sardinha, Luís B.; Fonseca, Helena
The value of physical activity (PA) counselling and its impact on PA behaviour and
weight management have been in question. The main aim of this study was to analyse 6 and 12-month effects of a PA consultation (PAC—a structured form of PA
counselling) with and without the inclusion of structured exercise, on body mass
index (BMI) z-score, body composition and PA levels of adolescents with excess
weight (BMI ≥p85), as part of a clinical multicomponent weight management program. Participants were allocated at baseline into a control (CG—standard care,
including paediatric and nutrition consultations) and two experimental groups (EGI
and EGII). Both EG's were exposed to standard care plus PAC for 12 months. During
the first 6 months, EGII additionally participated in two weekly exercise sessions.
From 165 participants recruited, 102 completed the intervention (CG n = 28, EGI
n = 36 and EGII n = 38). According to generalized estimating equations, at 6 months
both EG's improved (p < 0.05) their BMI z-score, waist-height ratio (WHtR), body fat
mass, skeletal muscle mass, sedentary time and moderate-vigorous PA (MVPA) compared to CG. Further improvements were observed in BMI z-score between 6 and
12 months in EG's compared to CG. At 6 months, EGII showed a higher (p < 0.05)
increase in MVPA compared to EGI, and EGI a higher decrease in WHtR. No other
differences were found between EG's. This study suggests that PAC is a timeeffective approach to improve BMI z-score, body composition and PA levels in adolescents with excess weight, even without the inclusion of structured exercise
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Fundação para a Ciência e a Tecnologia
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OE
Número da atribuição
67557