Dear all,

I was wondering if the range of motion (ROM) of a healthy human trunk is
limited by its passive structures or its muscular structures in a forward
bending situation. In other words:
- in an in vitro situation, does the osteoligamentous spine have a greater
ROM than a muscular spine?
- in an in vivo situation, is the ROM limited by muscular pain?

Thank you for your precious time,

P.S. Replies will be summarised

Nicolas Panet-Raymond
Ecole Polytechnique de Montreal