Muscle activity of the Lumbo-pelvic-hip complex in three isometric exercises using TRX ® rip trainer™

espanolUna de las herramientas actualmente utilizadas para el fortalecimiento del complejo lumbo-pelvis-cadera (CLPC) es el TRX® Rip Trainer ™. Este dispositivo produce una fuerza desestabilizadora asimetrica por medio de un cordon de resistencia elastica (RE). Este estudio tuvo como objetivo comparar el nivel de actividad muscular de CLPC, durante la realizacion de tres ejercicios isometricos utilizando TRX® Rip Trainer ™. Veintidos hombres sanos, fisicamente activos (edad media de 23 ± 2,35 anos) se evaluaron durante la realizacion de los ejercicios de resistencia a la isometria “Drag” (anterior), "Drive" (posterior) y "Stack" (rotacion), realizados con TRX® Rip Trainer ™. Mediante electromiografia de superficie, se registro la actividad muscular de longissimus, oblicuo externo, gluteo medio y biceps femoral. Hubo diferencias en relacion con el lado de la ubicacion de RE, en la mayoria de los musculos evaluados (p EnglishOne of the tools currently used for strengthening the lumbo-pelvic-hip complex (LPHC) is the TRX ® Rip Trainer™. This device produces asymmetric destabilizing forces by means of an elastic resistance (ER) cord. This study aimed to compare the level of muscle activity of LPHC, during the performance of three isometric exercises using TRX ® Rip Trainer™. Twenty-two healthy, physically active men (mean age 23 ± 2.35 years) were evaluated during the performance of “Drag” (anterior), "Drive" (posterior) and “Stack” (rotation) isometrically resisted exercises, performed using TRX ® Rip Trainer ™. The muscle activity of longissimus, external oblique, gluteus medius, and biceps femoris was recorded by means of surface electromyography. There were differences regarding the side of the ER location in most of the evaluated muscles (p