1. Which is correct about motor unit properties mediated by physical activity?
A. (A) strength training increases contraction speed and force
B. (B) strength training decreases contraction speed and force
C. (C) endurance training increases motor unit fatigability
D. (D) endurance training decreases contraction speed and force
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3. Which is correct about the cross bridge cycle?
A. (A) no energy consumption in the cycle
B. (B) ADP binding is essential for release of calcium ions
C. (C) ATP binding is essential for actin detachment
D. (D) calcium ions bind to thick filament
2. Which ion is released from the sarcoplasmic reticulum during muscle contraction?
A. (A) sodium ion
B. (B) potassium ion
C. (C) calcium ion
D. (D) chloride ion
1. Which is the basic functional unit of muscle?
A. (A) bundle of muscle fibers
B. (B) myofibril
C. (C) sarcomere
D. (D) myosin and actin
Which is wrong about the internal model of movement?
A. (A) inverse model is related to predicted behavior
B. (B) inverse model is related to desired behavior
C. (C) forward model is related to predicted behavior
D. (D) output of the forward model is the same as input of the inverse model when inverse and forward models are accurate
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