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Effects of 2 Types of Resistance Training Models on Obese Adolescents' Body Composition, Cardiometabolic Risk, and Physical Fitness

Magnani Branco, Braulio Henrique1,2,3; Carvalho, Isabelle Zanquetta1,3; Garcia de Oliveira, Humberto1,3; Fanhani, Ana Paula1,3; Machado dos Santos, Michelle Cardoso1,3; Pestillo de Oliveira, Leonardo1,2; Macente Boni, Sara1; Nardo, Nelson Junior4

Journal of Strength and Conditioning Research: December 14, 2018 - Volume Publish Ahead of Print - Issue - p
doi: 10.1519/JSC.0000000000002877
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Magnani Branco, BH, Carvalho, IZ, Garcia de Oliveira, H, Fanhani, AP, Machado dos Santos, MC, Pestillo de Oliveira, L, Macente, SB, and Nelson, NJ. Effects of 2 types of resistance training models on obese adolescents' body composition, cardiometabolic risk, and physical fitness. J Strength Cond Res XX(X): 000–000, 2018—The main objective of this study was to investigate the effects of 2 types of resistance training (RT) models in conjunction with interdisciplinary interventions by other health professionals to reduce the body fat and cardiometabolic risk of obese adolescents while improving their general health-related physical fitness. The 12-week analyses involved 18 male adolescents who were split into 2 groups (weightlifting: n = 9 and functional: n = 9), with equalization according to the primary muscle group (whenever possible), the effort:pause ratio, and intensity. The results showed reductions in fat mass and body fat, as well as in waist and hip circumferences (p < 0.05) after the intervention period. However, no significant differences were observed in terms of the body mass, body mass index, neck circumference, systolic and diastolic blood pressures, and for lean mass (p > 0.05) after the respective period. Maximal isometric strength, abdominal strength resistance, flexibility, and maximal oxygen consumption all produced significant increases after the interventions (p < 0.05). There were reductions in low-density lipoproteins and triglyceride levels after the intervention period (p < 0.05). For fasting glycemia, high-density lipoproteins, and alanine aminotransferase, no differences were observed (p > 0.05). In addition, no differences were observed in rating of perceived recovery, internal training load, or caloric intake (p > 0.05). With the results presented, it is concluded that both RT methods were effective at reducing both fat mass and body fat, thus improving health-related physical fitness components and decreasing cardiometabolic risk.

1University Center of Maringa (UniCesumar), Parana, Brazil;

2Postgraduate Program in Health Promotion, UniCesumar, Parana, Brazil;

3Physical Education, Physiotherapy, Sports, Nutrition and Performance Study Group (GEFFEND), UniCesumar, Parana, Brazil; and

4State University of Maringa, Parana, Brazil

Address correspondence to Braulio Henrique Magnani Branco, brauliomagnani@live.com.

Copyright © 2019 by the National Strength & Conditioning Association.