| Autor: |
Villaquiran AF; Grupo de Movimiento Corporal Humano y Calidad de Vida, Universidad del Cauca, Popayán, Colombia. avillaquiran@unicauca.edu.co., Rivera DM; Grupo de Movimiento Corporal Humano y Calidad de Vida, Universidad del Cauca, Popayán, Colombia. dianarivera@unicauca.edu.co., Portilla EF; Grupo de Salud y Motricidad Humana, Universidad del Cauca, Popayán, Colombia. efportilla@unicauca.edu.co., Jácome SJ; Grupo de Movimiento Corporal Humano y Calidad de Vida, Universidad del Cauca, Popayán, Colombia. sjacome@unicauca.edu.co. |
| Jazyk: |
English; Spanish; Castilian |
| Zdroj: |
Biomedica : revista del Instituto Nacional de Salud [Biomedica] 2020 Mar 01; Vol. 40 (1), pp. 43-54. Date of Electronic Publication: 2020 Mar 01. |
| DOI: |
10.7705/biomedica.4938 |
| Abstrakt: |
Introduction: Differences in the lateral and medial portions from quadriceps muscular activation during the execution of the jump can become a neuromuscular risk factor raising knee dynamic valgus and increasing the risk for anterior cruciate ligament injury. Objective: To determine the difference in the activation of the lateral and medial vastus using surface electromyography during single-leg jumps in the sagittal and frontal plane in female athletes. Materials and methods: This was a quantitative, cross-sectional study. A total of 64 female athletes participated. We carried out anthropometric measurements, vertical and lateral single-leg jump tests with the evaluation of vastus medialis and lateral electromyographic activation during the tests and iliotibial band flexibility assessment. Results: There was a statistically significant relationship (p≤0.05) between the body mass index, fat percentage, and vertical single-leg jump power. We also found statistical significance (p≤0.05), with greater activation of the lateral vastus in the right lower limb vertical jump and in the lateral jump in both lower limbs. Conclusion: The athletes presented differences in quadriceps activation, showing higher lateral vastus activation in most of the single-leg jumps, both in the sagittal and frontal plane. This may increase the risk for suffering knee injuries during sports practice. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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