Twelve Weeks of Plyometric Training Improves Motor Performance of 7- to 9-Year-Old Boys Who Were Overweight/Obese

Gabriela G. Nobre, Marcelus B. de Almeida, Isabele G. Nobre, Fernanda K. dos Santos, Raphael A. Brinco, Thalison R. Arruda-Lima, Kenya L. de-Vasconcelos, Jociellen G. de-Lima, Manoel E. Borba-Neto, Emmanuel M. Damasceno-Rodrigues, Steve M. Santos-Silva, Carol G. Leandro (+1 others)
2017 Journal of Strength and Conditioning Research  
Nobre, GG, de Almeida, MB, Nobre, IG, dos Santos, FK, Brinco, RA, Arruda-Lima, TR, de-Vasconcelos, KL, de-Lima, JG, Borba-Neto, ME, Damasceno-Rodrigues, EM, Santos-Silva, SM, Leandro, CG, and Moura-dos-Santos, MA. Twelve weeks of plyometric training improves motor performance of 7-to 9-yearold boys who were overweight/obese: a randomized controlled intervention. J Strength Cond Res 31(8): 2091-2099, 2017-The prevalence of childhood overweight/obesity has increased, and physical training at
more » ... l may to be effective to combat this scenario. We analyzed the effects of a protocol of plyometric training on body composition and motor performance of boys who were overweight/obese aged 7-9 years. The sample was randomly assigned into 2 groups: plyometric training group (T, n = 40) and control group (C, n = 19). Training consisted of 20 min$d 21 (twice a week, during 12 weeks) of lower extremity plyometric exercise. Health-related physical fitness was measured by handgrip strength, standing long jump (SLJ), curlups, sit and reach, square test, running speed, and mile run test. Gross motor coordination was evaluated by means of the Ko¨rperkoordinations-test fu¨r Kinder (KTK) tests. Baseline and postintervention differences were investigated, and effect size was estimated through Cohen's d coefficient. Both groups showed increased body weight, height, and sitting height after intervention with a negligible effect size. Only T group showed increased fat-free mass (p = 0.011) compared with baseline values with small effect size. Plyometric training improved handgrip strength (d = 0.23), sit and reach (d = 0.18), curl-ups (d = 0.39), SLJ (d = 0.80), agility (d = 0.48), and time in the mile run test (d = 0.38). For gross motor coordination results, T group showed better performance in all tests after plyometric training with moderate/large effect size. Thus, 12 weeks of PT improved healthrelated physical fitness components and motor coordination acquisition of 7-to 9-year-old boys who were overweight/obese.
doi:10.1519/jsc.0000000000001684 pmid:27787471 fatcat:zlxec2lyc5aljnq32nuoz6tpmi