Hamstring/quad relationship with pelvis and spine

[sult]

Hi guys,

 

This appears to be a fundamental concept in exercise science, so is my understanding of this correct?

 

I take it, when hamstrings are tight, excessive pressure is placed on the antagonists which creates a muscular imbalance which excessively flexes the lumbar spine backwards, causing lordosis. This reduces the effectiveness of the lumbo-pelvic rhythm, as the range of pelvic motion in the anterior tilt decreases and the range of forwards lumbar motion increases in order to compensate for this, which also means that lumbar motion occurs earlier during forward bending. In regards to the quadriceps, the opposite happens when they are tight, meaning that anterior tilt is increased and the lumbar spine is extended rather than flexed.

 

Is this right, or have I got it all topsy-turvy?

[Mokele]

Yep, that's about it.