ACTIVE AND PASSIVE INSUFFICIENCY
In
one joint muscle the movement may not be restricted by the proximal or
distal joint motion. But it is not possible in the two or multi-joint
muscles, the ROM may be changing depends on the proximal and distal
joint movement. If the muscles are crossing more than one joint, there
is possibility for active and passive insufficient said by Brunnstrom.
Active insufficiency
The muscle cannot go for further shortening while performing the activity around the joints, which the muscle crosses. It occurs to the agonists.
Example: Flexor compartment muscles of the forearm. These muscles responsible for elbow flexion, MCP flexion PIP and DIP flexion. If the above said movements are done in the same sequence, the person feels difficult in flexing the MCP and finger after flexing the elbow and wrist, because the muscles are already shortened by the elbow and wrist flexion. So, further shortening is difficult, this is called as active insufficiency (Tenodesis).
Passive Insufficiency
The muscle cannot lengthen further while performing movement around more than two joints, which it crosses. It occurs in the antagonists.
Example: Extensor compartment muscles of the forearm. These muscles are responsible for elbow, wrist, MCP, PIP and DIP extension. While performing the opposite movement around these joints in the given sequence, the muscle cannot go for further more lengthening in the MCP, PIP and DIP. This phenomenon is called as passive insufficiency. If the agonist muscle goes active insufficiency, the antagonist goes for the passive insufficiency.
Active insufficiency
The muscle cannot go for further shortening while performing the activity around the joints, which the muscle crosses. It occurs to the agonists.
Example: Flexor compartment muscles of the forearm. These muscles responsible for elbow flexion, MCP flexion PIP and DIP flexion. If the above said movements are done in the same sequence, the person feels difficult in flexing the MCP and finger after flexing the elbow and wrist, because the muscles are already shortened by the elbow and wrist flexion. So, further shortening is difficult, this is called as active insufficiency (Tenodesis).
Passive Insufficiency
The muscle cannot lengthen further while performing movement around more than two joints, which it crosses. It occurs in the antagonists.
Example: Extensor compartment muscles of the forearm. These muscles are responsible for elbow, wrist, MCP, PIP and DIP extension. While performing the opposite movement around these joints in the given sequence, the muscle cannot go for further more lengthening in the MCP, PIP and DIP. This phenomenon is called as passive insufficiency. If the agonist muscle goes active insufficiency, the antagonist goes for the passive insufficiency.
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