CSCS-Style Mixed Exam – Chapters 2 & 3

Which of the following describes a second-class lever?

• Muscle force and resistive force act on opposite sides of the fulcrum, with the muscle force having a shorter moment arm

• Fulcrum is between muscle force and resistive force

• Muscle force and resistive force act on the same side of the fulcrum, with the muscle force having a longer moment arm

• Resistive force has a longer moment arm than the muscle force

A barbell bench press occurs primarily in which anatomical plane?

• Sagittal

• Frontal

• Transverse

• Oblique

The torque generated at a joint is equal to:

• Mass × acceleration

• Force × velocity

• Force × moment arm

• Power × time

Increasing the moment arm of a resistive force will:

• Increase mechanical advantage

• Decrease muscle force requirements

• Increase joint torque and increase muscular demand

• Decrease energy expenditure

Which type of muscle action produces the greatest force?

• Concentric

• Eccentric

• Isometric

• Plyometric

The knee joint during a squat primarily functions as a:

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

Which of the following increases a person’s potential for lifting heavy loads?

• Longer tendon insertion distance from the joint

• Shorter tendon insertion distance from the joint

• Increased pennation angle

• Increased sarcoplasmic volume

As barbell velocity increases, which of the following decreases?

• Power output

• Force production

• Acceleration

• Muscle fiber recruitment

An athlete transitions from a squat to a vertical jump. What type of kinetic chain movement is occurring?

• Open → closed

• Closed → open

• Open → open

• Closed → closed

Which variable most affects mechanical power output during explosive lifting?

• Time under tension

• Bar mass

• Acceleration

• Rest interval length