In recent years in Japan, greater focus has been placed on a condition called “joint dysfunction” as the reason behind many people’s back pain, stiff shoulders, and joint pain.
These condition refers to the slightly movement that occurs in the adjoining bone is irregular. This slightly movement is called “Joint Play”.
“Joint Play” “Accessary Movement” “Intra-articular Movement” “Joint Mobility”
Theses words have a same meanings. In the following I use “Joint Play”
In life, the voluntary movements cannot be achieved unless certain well-defined movements of “joint play” are present. Movements of “joint play” are independent of the Voluntary movement.
There are some “joint play” such as rolling, sliding, spinning on the joint surfaces, and traction and compression.
In 1949, Mennell introduced through the investigation of Joint Play involving the voluntary movements on full range motion.
Abnormal “Joint Play” cannot be picked up by an X-ray, MRI, or any other method of diagnostic imaging.
“Motion Palpation” is diagnostic tool when I find out abnormal “Joint Play”
Nishimura Acupuncture & Osteopathic clinic
Yamada building, 5-27-5, Shiba, Minato-ku, Tokyo.