This study was conducted at the Center for Exercise science from the College of Health and Human Performance at the University of Florida, Gainesville. This involved a randomized group investigating the impact of varying frequencies on muscle strength related to torso rotation using MedX Machines.
In this study, the two different restraint systems to isolate the lumbar extensors were explored.
The two different restraint systems are used through the pelvic
stabilization by preventing movements in the lower part of your body while seated. Restraints are located on the knees and on the bottom of the feet. The goal of the study is to see how the restraint systems can influence lumbar extension strength and the shape of isometric lumbar extension strength curve.