1
kines 165 final Questions with Answers (100%
Correct Answers)
What muscle fiber conversion occurs with aerobic training? Answer: Type IIx
→ IIa → Type I (oxidative and fatigue-resistant).
What fiber shift occurs with resistance training? Answer: Type IIx → IIa
(limited shift to Type I).
What happens early in strength training (first 2 weeks)? Answer: Neural
adaptations: increased motor unit recruitment, synchronization, less antagonist
activity.
What causes strength gains after the first few weeks of training? Answer:
Muscle hypertrophy due to myofibril and myofilament growth.
What is muscle hyperplasia? Answer: Possible increase in number of fibers—
evidence in bodybuilders, not confirmed in humans.
What fibers hypertrophy more in strength training? Answer: Fast-twitch (Type
II) fibers.
How does testosterone influence strength? Answer: Males have more post-
puberty → more muscle mass and strength.
What is the strength difference between men and women per CSA? Answer:
There is no difference in strength per cross-sectional area.
What is the role of tendon insertion in strength? Answer: Better leverage
(longer moment arm) increases torque.
What is concurrent training? Answer: Combining resistance and aerobic
exercise in a single program.
Why can aerobic training impair strength gains? Answer: It may suppress
mTOR via AMPK, lower enzymes, or cause fatigue.
kines 165 final Questions with Answers (100%
Correct Answers)
What muscle fiber conversion occurs with aerobic training? Answer: Type IIx
→ IIa → Type I (oxidative and fatigue-resistant).
What fiber shift occurs with resistance training? Answer: Type IIx → IIa
(limited shift to Type I).
What happens early in strength training (first 2 weeks)? Answer: Neural
adaptations: increased motor unit recruitment, synchronization, less antagonist
activity.
What causes strength gains after the first few weeks of training? Answer:
Muscle hypertrophy due to myofibril and myofilament growth.
What is muscle hyperplasia? Answer: Possible increase in number of fibers—
evidence in bodybuilders, not confirmed in humans.
What fibers hypertrophy more in strength training? Answer: Fast-twitch (Type
II) fibers.
How does testosterone influence strength? Answer: Males have more post-
puberty → more muscle mass and strength.
What is the strength difference between men and women per CSA? Answer:
There is no difference in strength per cross-sectional area.
What is the role of tendon insertion in strength? Answer: Better leverage
(longer moment arm) increases torque.
What is concurrent training? Answer: Combining resistance and aerobic
exercise in a single program.
Why can aerobic training impair strength gains? Answer: It may suppress
mTOR via AMPK, lower enzymes, or cause fatigue.
