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Questions and Answers
Which factor may limit the range of motion of elbow extension?
Which factor may limit the range of motion of elbow extension?
- Contact of olecranon process with olecranon fossa on posterior aspect of humerus
- Tension of anterior radial and ulnar collateral ligaments of elbow joint
- Tension of flexor muscles of forearm
- Tension of extensor muscles of forearm (correct)
What effect can weakness of elbow extensor muscles have?
What effect can weakness of elbow extensor muscles have?
- Inability to reach over head (correct)
- Inability to flex the elbow
- Inability to perform wrist supination
- Inability to rotate the shoulder
What is the alternative position for grades 3, 4, and 5 weakness of elbow extensor muscles?
What is the alternative position for grades 3, 4, and 5 weakness of elbow extensor muscles?
- Supine position with arms extended overhead
- Side-lying position with the affected arm elevated (correct)
- Sitting position with the affected arm raised
- Prone position with the affected arm behind the back
