T Nation

Agonists: Hack Squats & Deadlifts

What are the differences on the agonists of a hack squat compared to a deadlift? I wanna know. Do you know?

i’m not sure but do you mean antagonist? like with the synergist, prime mover, and antoginist in a movement? if not sorry for my ignorance…lol

[quote]Budo1 wrote:
What are the differences on the agonists of a hack squat compared to a deadlift? I wanna know. Do you know?[/quote]

Hack squat is more knee dominant. so the quads get it a whole lot… where with the DL it is more hip based, so the posterior chain gets it, quads also but to a lesser degree.

Hack squat - vastus lateralis, intermedius, medialis rectus femoris, sartorius, adductors, tensor facia latae right down ITB.

DL - Bicep femoris, semi-tendonosus semi-membranosus, gracilis, 3 glutes, lumbar musculature…

Most definately more… but that enough?

[quote]Joe Brook wrote:
Budo1 wrote:
What are the differences on the agonists of a hack squat compared to a deadlift? I wanna know. Do you know?

Hack squat is more knee dominant. so the quads get it a whole lot… where with the DL it is more hip based, so the posterior chain gets it, quads also but to a lesser degree.

Hack squat - vastus lateralis, intermedius, medialis rectus femoris, sartorius, adductors, tensor facia latae right down ITB.

DL - Bicep femoris, semi-tendonosus semi-membranosus, gracilis, 3 glutes, lumbar musculature…

Most definately more… but that enough?[/quote]

hey man great post on the muscles hit with those exercises i think that definitely answerst the question. i don’t want to hijack the other dood’s thread, but can you define agonist for me? I’m nearing the end of an anatomy class in college and physiology is next semester. I learned all of the correct terms for muscles and movements so now I actually know the vastus lateralis, medialis, rectus femoris,etc as their proper names instead of just quad. lol but i don’t remember agonist. If you could help me out with that that’d be great…if not I’ll start searching! lol
thanks man

-gerdy

[quote]Dirty Gerdy wrote:
Joe Brook wrote:
Budo1 wrote:
What are the differences on the agonists of a hack squat compared to a deadlift? I wanna know. Do you know?

Hack squat is more knee dominant. so the quads get it a whole lot… where with the DL it is more hip based, so the posterior chain gets it, quads also but to a lesser degree.

Hack squat - vastus lateralis, intermedius, medialis rectus femoris, sartorius, adductors, tensor facia latae right down ITB.

DL - Bicep femoris, semi-tendonosus semi-membranosus, gracilis, 3 glutes, lumbar musculature…

Most definately more… but that enough?

hey man great post on the muscles hit with those exercises i think that definitely answerst the question. i don’t want to hijack the other dood’s thread, but can you define agonist for me? I’m nearing the end of an anatomy class in college and physiology is next semester. I learned all of the correct terms for muscles and movements so now I actually know the vastus lateralis, medialis, rectus femoris,etc as their proper names instead of just quad. lol but i don’t remember agonist. If you could help me out with that that’d be great…if not I’ll start searching! lol
thanks man

-gerdy
[/quote]

I can try matey, an agonist is the prime mover - a direct pulling force on that joint/bone/movement. The muscle that directly causes the movement.

Antagonist is the opposite, so the muscle involved in opposing that movement… i dont know if that is “defined” enough, but its the best i can do!

Joe

right on man. That cleared it up perfectly. Yes I understood the prime mover, synergist, antagonist part. In class we had just learned it as the prime mover instead of the term agonist. LOL right on thanks man

-gerdy

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[quote]bushidobadboy wrote:
Joe Brook wrote:
Budo1 wrote:
What are the differences on the agonists of a hack squat compared to a deadlift? I wanna know. Do you know?

Hack squat is more knee dominant. so the quads get it a whole lot… where with the DL it is more hip based, so the posterior chain gets it, quads also but to a lesser degree.

Hack squat - vastus lateralis, intermedius, medialis rectus femoris, sartorius, adductors, tensor facia latae right down ITB.

DL - Bicep femoris, semi-tendonosus semi-membranosus, gracilis, 3 glutes, lumbar musculature…

Most definately more… but that enough?

I think the sartorius, TFL, glute med, min and the adductors will be fixators during both hip extenstion and/or knee extension exercises.

Glutes will be synergists to both exercises.

Quads will be synergists to dLing and hams will be synergists to hack squat.

Could be wrong.

Bushy[/quote]

No, you could well be right, i WAS thinking very broadly. I think TFL is defo agonist in hip ext. sartorius crosses hip joint not knee i think, and isnt glute max a prime mover in hip flexion?

I think that last sentance is dead on tho mate.

Joe