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Thread: Sit-ups or Crunches?

  1. #1
    Wannabebig Member
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    Jun 2008

    Sit-ups or Crunches?

    What do you guys prefer? Please state reasons why.

  2. #2
    Currently Obsessed with Sq
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    Jun 2008
    Birmingham, UK
    crunches - work the lower abs and keep the abs ın a constantly tense posıtıon

  3. #3
    Squat Heavy, Squat Often Cards's Avatar
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    Jul 2007
    H: 5'7" W:185
    Goals: 495 -315 -585

    “Persistence Persistence.” - Calvin Coolidge.
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  4. #4
    Couldn't find IAMBUFF.COM
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    Apr 2007
    Deadlifts and squats


  5. #5
    Will work for muscles Ant's Avatar
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    Mar 2002
    Decline sit ups with 25lbs on chest. Squats and seated rows. When my body fat is low I get nice comments on my abs.

  6. #6
    Senior Member youngguns's Avatar
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    Feb 2008
    Gainesville, Florida
    Quote Originally Posted by AJ_H View Post
    crunches - work the lower abs and keep the abs ın a constantly tense posıtıon
    there is no such thing as a lower ab.
    BP - 280 pause bench
    SQ - 345 outdated
    DL - 345 outdated
    Clean and Jerk - 250

  7. #7
    Wannabebig Member
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    May 2006
    Mickleton, New Jersey
    sit ups have alot of extra movement that doesnt target the abs. once your shoulder blades are higher than about 30 degrees off the ground you are mainly using your psoas muscles to finish the curling movement. do crunches and keep your abs as tight as you can the whole time......just my opinion
    Height: 5'4
    Weight: 122

    Bench: 170 3x5
    Deadlift:230 5x5
    Squat:225 5x5
    (weights last updated 6/05/08)

  8. #8
    Senior Member dumbbell's Avatar
    Join Date
    Mar 2006
    Long Beach, CA
    I do both. Crunches with body weight for 1 set as many reps as possible to warm up. Then I'll do sit ups with legs bent, feet locked into position, full ROM, with a dumbbell on my chest for 10-12 reps.

    I've heard that the crunch isolates the abs more efficiently. I suppose it's true. But I figure that the hip flexors need their share of work too. As long as I balance the workload between the abs, lower back, and hip flexors in my routine I'm assuming that I'll better resist injury on bigger lifts.

    I could be going about it all wrong, though. Curious to here other opinions on the matter.

    It is currently a fad, at this writing, for boys to think they need a "six pack", although most of them don't have an ice chest to put it in.
    -Mark Rippetoe

  9. #9
    Join Date
    Dec 2007
    Weighted ab work - helps build the core to be able to support heavy squats or deads.

  10. #10
    Senior Member Sensei's Avatar
    Join Date
    Dec 2004
    If I had to choose between sit-ups or crunches, I'd probably go with ab pulldowns or hanging leg lifts.
    A child does not learn to squat from the top down. In other words, he does not suddenly make a conscious decision one day to squat. Actually, he is squatting one day and make the conscious decision to stand. Squatting precedes standing in the developmental sequence. This is the way a child's brain learns to use the body as the child develops movement patterns. Therefore, a child is probably crawling, rocks back into a squatting position with the back completely relaxed and the hips completely flexed, and stands when he has enough hip strength. This approach makes a lot of sense and can be applied to relearning the deep squat movement if it is lost. -Gray Cook
    Lifting Clips:

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