ACE ACE Anatomy & Biomechanics

Question 1

Which joint action occurs at the knee during the downward phase of a squat?

Accepted Answer

Flexion (knee flexion)

Answer

Extension and abduction

Answer

Plantarflexion

Answer

Internal rotation only

Question 2

What is the anatomical term for moving a limb away from the midline of the body?

Accepted Answer

Abduction

Answer

Adduction

Answer

Flexion

Answer

Circumduction

Question 3

Which muscle group is the primary agonist during a hip hinge movement such as a deadlift or Romanian deadlift?

Accepted Answer

Hamstrings and gluteus maximus

Answer

Quadriceps

Answer

Hip flexors

Answer

Tibialis anterior

Question 4

What does the term 'neutral spine' refer to in group fitness instruction?

Accepted Answer

Maintaining the natural curves of the cervical, thoracic, and lumbar spine

Answer

A fully flexed lumbar spine

Answer

A completely flat (posterior pelvic tilt) back

Answer

Maximum spinal extension

Question 5

Which plane of motion do lateral raises and side lunges primarily occur in?

Accepted Answer

Frontal (coronal) plane

Answer

Sagittal plane

Answer

Transverse plane

Answer

Oblique plane

Question 6

What is the role of the rotator cuff muscles in shoulder mechanics during overhead movements?

Accepted Answer

Stabilize the humeral head in the glenoid fossa and control joint mechanics

Answer

Primarily responsible for shoulder flexion and extension

Answer

Generate maximum force for pressing movements

Answer

Connect the scapula to the clavicle