Physio Blogs by Arun
Oct 22 2010
Concave-Convex Rule - Explained in Hundred Words
The concave-convex rule is considered to be of great significance in manualtherapy and joint mobilization. Here is a note that will probably help you understand the concept.
Osteokinematic motion (Osteokinematics)
Osteokinematic motions are GROSS MOVEMENT of bones at the joints.
Osteokinematic motion (Osteokinematics)
Osteokinematic motions are GROSS MOVEMENT of bones at the joints.
E.g: flexion/extension, abduction / adduction
Arthrokinematic motion (Arthrokinematics)
Arthrokinematics motions are small amplitude ACCESSORY MOVEMENTS at the joint articulating surfaces.
E.g: roll, glide, spin
The Rule:
- Convex surface moving on concave surface (which is fixed.)
-> The osteokinematic motion is in the opposite direction as the arthrokinematic motion. - Concave surface moving on convex surface (which is fixed.)
-> The osteokinematic motion is in the same direction as the arthrokinematic motion.
A Video
The following video posted by nasypany1 in youtube describes it well. Watch the video below.
There is an evidenced based reviews challenging the concept. One of our user Hardik discusses it in this forum post - [link]
The following video posted by nasypany1 in youtube describes it well. Watch the video below.
There is an evidenced based reviews challenging the concept. One of our user Hardik discusses it in this forum post - [link]
