KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Force-Velocity Relationship and Fibre Types
Answer:
Different fibre types max out at different
normalized velocities. Overall effect depends on proportion of different fibre types in
a muscle.
Q: Effects of Force-Velocity Relationship
Answer:
For any given levels of activation and normalized
length, activated muscles are weaker when shortening and stronger when
lengthening.
Q: Effect of ACSA on Force-Length and Force-Velocity Curves
Answer:
Thicker muscles are stronger, but
not longer or faster.
,KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Effect of Resting Fibre Length on Force-Length and Force-Velocity Curves
Answer:
Longer muscles are
longer and faster, but not stronger.
Q: Determinants of Muscle Forces
Answer:
When put together, all interact. Combining force-length and
force-velocity relationships for any given level of activation yields a 3D graph of a
surface.
Q: Bones
Answer:
Act as levers in our chains, with their fulcrums at joints.
,KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Tensile Forces in Linked-Segment Chains
Answer:
Often have to go around corners (flexion). This is
accomplished by a system of cables (muscles-tendons) and pulleys (grooves in
bones, sheaths
of fascia) that serve to keep the cables in their place.
Q: Lever
Answer:
A rigid long member fixed at, but free to rotate about, a fulcrum. Different classes
exist based on relative locations of effort, load, and fulcrum. We have all 3 types in
our
musculo-skeletal linked-segment system.
Q: Class 1 Lever
Answer:
Have the fulcrum in the middle with the effort and resistance on either side.
, KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Class 2 Lever
Answer:
Have the resistance in the middle with the effort and fulcrum on either side.
Q: Class 3 Lever
Answer:
Have the effort in the middle with the fulcrum and resistance on either side.
Q: Muscle Pulley Functions
Answer:
1. Keep tendons in place.
2. Bend the line-of-force of a muscle-tendon going around a corner. Tension is
constant along a
bent cable going around a pulley. The radius of the pulley determines the moment
arm of the
tensile force in the cable about the centre of the pulley.
Latest 2026 Update
Q: Force-Velocity Relationship and Fibre Types
Answer:
Different fibre types max out at different
normalized velocities. Overall effect depends on proportion of different fibre types in
a muscle.
Q: Effects of Force-Velocity Relationship
Answer:
For any given levels of activation and normalized
length, activated muscles are weaker when shortening and stronger when
lengthening.
Q: Effect of ACSA on Force-Length and Force-Velocity Curves
Answer:
Thicker muscles are stronger, but
not longer or faster.
,KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Effect of Resting Fibre Length on Force-Length and Force-Velocity Curves
Answer:
Longer muscles are
longer and faster, but not stronger.
Q: Determinants of Muscle Forces
Answer:
When put together, all interact. Combining force-length and
force-velocity relationships for any given level of activation yields a 3D graph of a
surface.
Q: Bones
Answer:
Act as levers in our chains, with their fulcrums at joints.
,KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Tensile Forces in Linked-Segment Chains
Answer:
Often have to go around corners (flexion). This is
accomplished by a system of cables (muscles-tendons) and pulleys (grooves in
bones, sheaths
of fascia) that serve to keep the cables in their place.
Q: Lever
Answer:
A rigid long member fixed at, but free to rotate about, a fulcrum. Different classes
exist based on relative locations of effort, load, and fulcrum. We have all 3 types in
our
musculo-skeletal linked-segment system.
Q: Class 1 Lever
Answer:
Have the fulcrum in the middle with the effort and resistance on either side.
, KPE160: Module 3 Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Class 2 Lever
Answer:
Have the resistance in the middle with the effort and fulcrum on either side.
Q: Class 3 Lever
Answer:
Have the effort in the middle with the fulcrum and resistance on either side.
Q: Muscle Pulley Functions
Answer:
1. Keep tendons in place.
2. Bend the line-of-force of a muscle-tendon going around a corner. Tension is
constant along a
bent cable going around a pulley. The radius of the pulley determines the moment
arm of the
tensile force in the cable about the centre of the pulley.
