12. 隨著運動強度增強,肌纖維招募的順序為下列何者?
(A) Type I → Type IIb → Type IIa
(B) Type I → Type IIa → Type IIb
(C) Type IIa → Type IIb → Type I
(D) Type IIb → Type IIa → Type I
61. Which of the following is NOT a factor for increasing muscle strength?
(A) Increasing cross-sectional area of muscle fibers.
(B) Increasing speed of motor unit recruitment.
(C) Increasing number of mitochondria
(D) Increasing creatine phosphokinase.