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A-42 Free Communication/Poster - Youth Fitness and Sport Wednesday, May 27, 2020, 9: 30 AM - 12: 00 PM Room: CC-Exhibit Hall

Relationship Between Muscle Strength And Body Composition In Young Athletes

292 Board #108 May 27 9:30 AM - 11:00 AM

Torres, Diana Marcela Zapata; Ortiz, Johan E.; Sanjuanelo, Danny W.; Paz, Isabel C.; Contreras, Maria A.

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Medicine & Science in Sports & Exercise: July 2020 - Volume 52 - Issue 7S - p 64
doi: 10.1249/01.mss.0000670712.06035.55
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INTRODUCTION: A lower cardiometabolic risk in adulthood has been suggested when a better development of the cardiopulmonary and strength condition is reached at an early age. It is important to be able to assess the cardiometabolic risk against variables such as strength in the upper and lower limbs.

PURPOSE: To explore the correlation between anthropometric and strength condition variables in upper and lower limbs in boys and girls assigned to sports training schools (soccer, volleyball, skating) in the municipality of Madrid (Colombia).

METHOD: A total of 110 children and adolescents were evaluated using long jump test and handgrip strength (HS). The anthropometrics characteristics are, for boys and girls, respectively: weight (kg): 50,5 ±12,9 and 49,2 ±11,9; height (m): 158,3 ±11,8 and 152,6 ±9,2; age (years): 13,7 ±13,8 and 12,9 ±2,2. The Pearson’s correlation coefficient (r) was used to calculate the correlations regardless of gender and divided by boys and girls. The correlations studied were between the anthropometric variables (weight, height, body mass index (BMI), waist circumference and fat%), compared to long jump test (LJT), right HS (RHS) and left HS (LHS). The results of r are indicated with a statistical level of significance of p <0.001.

RESULTS: In the general analysis, r = 0.81 was obtained for height versus RHS and LHS and, for weight, r = 0.68 and 0.67 was found in RHS and LHS, respectively. When correcting by gender, the height in girls shows r = 0.7 and 0.65 in RHS and LHS; while, in children, it was 0.61, 0.85 and 0.89 for SL, RHS and LHS, respectively. The weight in girls showed r = 0.6 for RHS and, in boys, 0.8 and 0.84 for RHS and LHS, in whom r = 0.6 and 0.63 for RHS and LHS were also found when compared were made in front of BMI. No associations were found with LJT.

CONCLUSIONS: The results indicated that the strength in the upper limbs (measured through the determination of handgrip strength) is a strong and moderate association in relation to height and weight respectively and regardless of gender. When comparing by gender, this relation is maintained in boys but the association in height went to a moderate level in girls. Thus, the results suggest that the development of strength measured through HS is closely related to the anthropometric characteristics of young athletes, especially height and weight.

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