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Clinical Biomechanics in Sports Flashcards

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

Read the first 7 Clinical Biomechanics in Sports flashcards as text

  1. In overhead throwing, the late cocking phase places the greatest tensile stress on which structure?

    Answer: Anterior capsule and inferior glenohumeral ligament

    Maximum shoulder external rotation during late cocking produces peak tension in the anterior capsule and IGHL, the primary static restraint to anterior translation.

  2. Which biomechanical variable best predicts ACL loading during a single-leg landing task?

    Answer: Peak knee valgus moment

    Peak knee valgus moment during landing has the strongest association with ACL strain and is the primary target of injury-prevention programs.

  3. The concept of 'joint centration' refers to:

    Answer: Positioning articular surfaces for optimal congruency and load distribution

    Joint centration (DNS concept) means placing articular surfaces in the position of maximal congruence to distribute load evenly and minimize focal stress.

  4. A cyclist presents with anterior knee pain. Raising the saddle height primarily reduces stress on the:

    Answer: Patellar tendon

    Lowering the saddle increases knee flexion angle and patellar tendon load; raising the saddle reduces peak knee flexion and patellar tendon stress.

  5. Force closure of the sacroiliac joint is provided by:

    Answer: Muscular and ligamentous compression across the joint

    Force closure refers to active muscular contraction (e.g., biceps femoris, gluteus maximus) and ligament tension that compress the SI joint to enhance stability.

  6. During a deadlift, the moment arm of the load relative to the lumbar spine is LONGEST when:

    Answer: The barbell drifts anteriorly away from the body

    When the barbell drifts forward, the horizontal distance between the load and the lumbar fulcrum increases, dramatically raising the lumbar extensor moment.

  7. Kinetic chain dysfunction where proximal segment weakness leads to distal compensatory injury is best illustrated by:

    Answer: Rotator cuff impingement caused by weak hip abductors during throwing

    Weak hip stabilizers increase trunk tilt, alter scapular position, and raise shoulder impingement risk—a classic proximal-to-distal kinetic chain failure.