Air

Passive Oscillation Inventory

Lie supine, completely passive, and inventory the involuntary oscillations you can detect: heartbeat in the chest, pulse in the carotid, a tremor in a relaxed quadriceps, the slow rise and fall of the abdomen. Identify the slowest involuntary oscillation, the fastest, and any...

Full Lesson Notes

Complete Practice

Lie supine, completely passive, and inventory the involuntary oscillations you can detect: heartbeat in the chest, pulse in the carotid, a tremor in a relaxed quadriceps, the slow rise and fall of the abdomen. Identify the slowest involuntary oscillation, the fastest, and any pair that appear to phase-lock — for example, a quad tremor that briefly synchronizes with the carotid pulse. Do not amplify; only catalog. Phase-lock between two unrelated oscillators is the report you want. Challenge: Detecting a brief lock between heartbeat and a quadriceps tremor requires unusual interoceptive resolution; many practitioners will report nothing.

Minimal line anatomy illustration for Passive Oscillation Inventory.