Torso Strength – Dynamic and Static Loading
I got a question that I want to see if you can clear up for me on a scientific level.
With your last video of the straight leg situps with chains you talked about loading them dynamic and static. What is the science behind it and why it helps improve it, for some reason I still have the hardest time understanding the two. Its like I get it working out but I am just trying to understand the science behind it all.
The science behind it is all about motor unit recruitment and tension. Of course we need to brace the core statically to protect the spine under compression and for force transfer during all other movement (rotation, extension, flexion, lateral flexion, etc.).
We also need to develop strength of the torso dynamically, because movement is dynamic and random, in our case we’re talking about athletics. The chains created a dynamic loading because they are always adjusting. And if they are always adjusting, our motor units are rapidly firing to transfer, counteract and balance the load. The more dynamic and intense the loading, the higher the threshold of motor unit is excited. If we can control and forcibly lift the weight, then we can become efficient at firing the HTMU’s quicker. This improves reaction time.
Hope this helps…
Here is the video in question: