A muscle with a radius of 3 cm exerts about 20 N cm-2 of force at zero velocity. W hich of the following afterloads would cause an eccentric contraction? Use g = 9.81 m s-2. Assume the muscle is a right circular cylinder with a pennation angle of 0o.
A) 60 g
B) 600 g
C) 6kg
D) 60 kg
E) 600 kg
Correct Answer:
Verified
Q2: In an isometric contraction
A) The muscle lengthens
B)
Q3: The muscle twitch
A) Lasts 5 ms or
Q4: Passive force
A) Has a biphasic relationship with
Q5: Maximum force in muscle is produced
A) At
Q6: The advantage of m uscle pennation is
Q7: A muscle twitch in a human returns
Q8: Active tension
A) Is the increment in force
Q9: If a muscle twitch is 0.2 s
Q10: Tetanic force is typically about
A) 10% greater
Q11: Maximum power in muscle is produced
A) At
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