Practice Test Geeks(CSCS) Certified Strength & Conditioning Specialist Practice Test
← All CSCS Flashcard Decks

Resistance Training Biomechanics Flashcards

7 cards from real CSCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Resistance Training Biomechanics flashcards as text

  1. Which joint action occurs at the hip during the concentric phase of a back squat?

    Answer: Hip extension

    During the concentric (rising) phase of the back squat, the hip extensors (glutes and hamstrings) produce hip extension to return the body to standing.

  2. What is the moment arm in a lever system?

    Answer: The perpendicular distance from the axis of rotation to the line of force application

    The moment arm is the perpendicular distance from the joint's axis of rotation to the line of action of the applied force, and it determines the torque generated.

  3. During a standing barbell curl, which phase produces an eccentric contraction of the biceps brachii?

    Answer: Lowering the bar back to the starting position

    The biceps brachii lengthens under load during the lowering (eccentric) phase of the curl as elbow extension occurs against gravity.

  4. A longer resistance arm in a lever system will:

    Answer: Increase the torque produced by the resistance

    Torque equals force multiplied by its moment arm, so a longer resistance arm increases the torque the resistance creates about the joint.

  5. Which type of muscle action produces the greatest force output?

    Answer: Eccentric

    Eccentric muscle actions can produce approximately 20–50% more force than concentric contractions due to passive elastic contributions from titin and connective tissue.

  6. In a first-class lever, where is the fulcrum located relative to the effort and resistance?

    Answer: Between the effort force and the resistance

    A first-class lever has its fulcrum (axis) positioned between the effort (muscle force) and the resistance (load), as seen with neck extension against gravity.

  7. What is the primary mechanical disadvantage of the human musculoskeletal system compared to machines?

    Answer: Muscles attach close to joints, requiring large forces to move loads

    Most muscles attach very close to the joint (short effort arm), creating poor mechanical advantage and requiring the muscle to produce much greater force than the external load.