Muscle Mechanics (Length-Tension Relationship, Force-Velocity) – MCQs

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1. The length-tension relationship describes:



2. Maximum active tension in muscle is produced at:



3. Passive tension in a muscle increases when:



4. The total tension in a muscle equals:



5. Which proteins form the basis of the sliding filament mechanism?



6. At very short sarcomere lengths, force decreases due to:



7. At very long sarcomere lengths, force decreases because:



8. The force-velocity relationship describes:



9. In concentric contractions, as velocity increases, force:



10. In eccentric contractions, as velocity increases, force:



11. The point of maximum power output occurs at:



12. The cross-bridge cycle is powered by:



13. The series elastic component (SEC) of muscle refers to:



14. The parallel elastic component (PEC) refers to:



15. Which contraction produces the most force?



16. Which contraction produces the least force?



17. Force production is directly proportional to:



18. Pennate muscles generally produce:



19. Fusiform muscles generally produce:



20. A muscle’s resting length corresponds to:



21. The faster the concentric contraction, the:



22. The faster the eccentric contraction, the:



23. The plateau region of length-tension curve corresponds to:



24. The descending limb of the length-tension curve occurs when:



25. Which factor does NOT affect muscle force production?



26. Isometric contractions occur at:



27. Force output of fast-twitch fibers compared to slow-twitch is:



28. Which muscle fibers are more fatigue resistant?



29. The Hill muscle model includes:



30. Peak torque in isokinetic testing occurs at:



31. Passive insufficiency occurs when:



32. Active insufficiency occurs when:



33. The torque a muscle produces depends on:



34. The angle of pull that produces maximal torque is usually:



35. In eccentric contractions, less:



36. The “force-velocity curve” shifts with:



37. Stretch-shortening cycle enhances force by:



38. Which contraction type stores the most elastic energy?



39. Peak muscle power occurs at approximately what % of maximal shortening velocity?



40. Training at longer muscle lengths can:



41. Muscle fatigue generally shifts the force-velocity curve:



42. Optimal sarcomere length in humans is around:



43. Which training type increases eccentric strength most?



44. High velocity training improves primarily:



45. Muscle power is defined as:



46. The faster a muscle shortens concentrically, the:



47. A “flattened” length-tension curve indicates:



48. Which contributes most to passive tension?



49. At zero velocity, the force-velocity curve represents:



50. The practical application of force-velocity principles is:



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