ATC Diagnostic Procedures & Interpretation 3

Question 1

Manual muscle test grade 3 means the muscle can:

Accepted Answer

Move through full ROM against gravity without added resistance

Answer

Grade 3 is full range of motion against gravity without resistance.

Question 2

When using a goniometer, the fulcrum is placed over:

Accepted Answer

The axis of the joint being measured

Answer

The fulcrum aligns with the joint axis, with arms along the proximal and distal segments.

Question 3

The Lachman test is used to assess integrity of which structure?

Accepted Answer

Anterior cruciate ligament

Answer

Lachman is the most sensitive test for ACL injury, performed at about 20–30° of knee flexion.

Question 4

A positive Trendelenburg sign (pelvis drops on the unsupported side) suggests weakness of the:

Accepted Answer

Gluteus medius on the stance side

Answer

Contralateral pelvic drop indicates weakness of the stance-side gluteus medius.

Question 5

The Thomas test is used to identify tightness of the:

Accepted Answer

Hip flexors

Answer

A raised thigh on the table when the opposite hip is flexed indicates hip flexor tightness.

ATC - Aquatic Therapy Certification Practice Test