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ACSM 030-444 Exam - Topic 2 Question 17 Discussion

Actual exam question for ACSM's 030-444 exam
Question #: 17
Topic #: 2
[All 030-444 Questions]

The prime movers for extension of the knee are the

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Suggested Answer: C

by Vinnie at Nov 24, 2025, 12:02 PM

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Shannan
1 day ago
True, but it mainly flexes the knee. C is more accurate.
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Deandrea
6 days ago
But what about D) Gastrocnemius? It helps too, right?
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Joaquin
11 days ago
Yeah, I agree! They extend the knee.
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Zana
17 days ago
I think it's C) Quadriceps femoris.
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Merrilee
22 days ago
Biceps femoris is for hamstring stuff, not knee extension!
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Zona
27 days ago
Wait, are you sure? I always mix those up.
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Ty
2 months ago
Totally agree, it's all about the quads!
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Matthew
2 months ago
I thought it was the Gastrocnemius?
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Lauran
2 months ago
It's definitely the Quadriceps femoris!
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Elmira
2 months ago
Haha, B) Biceps brachii? Really? That's like saying your arms extend your knees. Good one!
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Kenneth
2 months ago
The quadriceps are the prime movers for knee extension, no doubt about it.
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Jose
2 months ago
Definitely C. Quad squad for the win!
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Valentin
3 months ago
C) Quadriceps femoris. Easy peasy!
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Edelmira
3 months ago
Definitely going with quadriceps femoris for this one. I recall it being the prime mover in knee extension from my notes.
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Elbert
3 months ago
I feel like the gastrocnemius might play a role too, but it’s mainly for plantarflexion, isn’t it?
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Gilberto
3 months ago
I remember practicing a question like this, and I think the biceps femoris is more about flexion, right?
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Melinda
3 months ago
I'm feeling a bit lost on this anatomy question. I'll need to review my notes on the muscles of the lower limb before moving on.
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Kiera
3 months ago
Okay, let me review what I know about knee extension. The quadriceps are the prime movers, so I'm going to go with C on this one.
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Chan
4 months ago
I think the quadriceps femoris is the main muscle for knee extension, but I’m not entirely sure.
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Daron
4 months ago
I'm a bit unsure on this one. I know the quadriceps are involved in knee extension, but I'm not sure if the other options might also play a role.
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Aliza
4 months ago
C) Quadriceps femoris. Gotta love those quads!
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Berry
4 months ago
I'd say C, but I'm still trying to figure out how the gastrocnemius fits into all this. Knee and ankle, you know?
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Alva
5 months ago
The quadriceps femoris is the main muscle group that extends the knee, so I'm pretty confident C is the right answer.
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Jani
5 months ago
Hmm, I think this is asking about the muscles that extend the knee. I'll need to think through the options carefully.
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Beatriz
4 months ago
I believe it's the Quadriceps femoris.
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