FROM MY PT SCHOOL NOTES · MODALITIES · UNIT 1 · CHAPTER 01
Why Are Modalities Adjuncts Rather Than the Whole Plan?
Choosing an agent starts with what the patient wants to do, not which machine is available.
At a glance
THERMAL
Heat/cold · tissue temperature
MECHANICAL
Traction/compression · applied force
ELECTRICAL / LIGHT
TENS, laser · energy input
What matters most
- Physical agents may transfer heat, mechanical force, electrical current, or light; their physical principles are different.
- A useful rationale names the target impairment, what short-term change is plausible, and how that change supports a task.
- Consider time, cost, patient preference, active alternatives, and a functional retest instead of equating a short-term symptom change with tissue repair.
Safety and limits
Screen the actual agent and body site: skin integrity, sensation, perfusion, implanted equipment, relevant medications, cognition and consent. A blanket contraindication list cannot replace the device instructions.
Think it through
Scenario: A patient feels less stiff after a hot pack but still avoids lifting laundry. What should the therapist do next?
Reveal the reasoning
Retest the relevant lifting task and address load tolerance, movement confidence and self-management. Brief relief may help participation, but the functional plan remains central.
From my original class materials: 1 & 2 introduction.pdf; Test 1 Chapters 1-4 Study Guide .pdf. Summarized and reframed for learning; not an official course or clinical protocol. Compare with current device instructions, scope, and evidence before application.
