Body Composition Changes after aWeight Loss Intervention: A 3-Year Follow-Up Study
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Body weightExerciseIntervention studiesNutritionObesity
Rojo-Tirado, M.A.; Benito, P.J.; Ruiz, J.R.; Ortega, F.B.; Romero-Moraleda, B.; Butragueño, J.; Bermejo, L.M.; Castro, E.A.; Gómez-Candela, C. Body Composition Changes after aWeight Loss Intervention: A 3-Year Follow-Up Study. Nutrients 2021, 13, 164. [https://doi.org/10.3390/nu 13010164]
PatrocinadorMinisterio de Ciencia e Innovación, Convocatoria de Ayudas I+D 2008, Proyectos de Investigación Fundamental No Orientada, del VI Plan de Investigación Nacional 2008-2011 DEP2008-06354-C04-01
Studies comparing different types of exercise-based interventions have not shown a consistent effect of training on long-term weight maintenance. The aim of this study was to compare the effects of exercise modalities combined with diet intervention on body composition immediately after intervention and at 3 years’ follow-up in overweight and obese adults. Two-hundred thirtynine people (107 men) participated in a 6-month diet and exercise-based intervention, split into four randomly assigned groups: strength group (S), endurance group (E), combined strength and endurance group (SE), and control group (C). The body composition measurements took place on the first week before the start of training and after 22 weeks of training. In addition, a third measurement took place 3 years after the intervention period. A significant interaction effect (group time) (p = 0.017) was observed for the fat mass percentage. It significantly decreased by 5.48 0.65%, 5.30 0.65%, 7.04 0.72%, and 4.86 0.65% at post-intervention for S, E, SE, and C, respectively. Three years after the intervention, the fat mass percentage returned to values similar to the baseline, except for the combined strength and endurance group, where it remained lower than the value at preintervention (p < 0.05). However, no significant interaction was discovered for the rest of the studied outcomes, neither at post-intervention nor 3 years later. The combined strength and endurance group was the only group that achieved lower levels of fat mass (%) at both post-intervention and 3 years after intervention, in comparison with the other groups.