Do sit ups work ?

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Replies

  • stevencloser
    stevencloser Posts: 8,911 Member
    Hm, weird, the English wiki article says pectoralis major only has 2 heads, the German one says 3.
  • sjohnson__1
    sjohnson__1 Posts: 405 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?
  • stevencloser
    stevencloser Posts: 8,911 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?

    To my understanding of how muscle contraction works, it's not possible to only activate half of a muscle head or activate one half more than the other. When it contracts, it contracts.
  • kshama2001
    kshama2001 Posts: 28,052 Member
    mitch16 wrote: »
    Think about it this way... if you've been doing tons of sit ups because you enjoy them, but you're still really bad at planking--then apparently the sit ups really weren't doing anything to help improve your core strength...

    +1
  • sjohnson__1
    sjohnson__1 Posts: 405 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?

    To my understanding of how muscle contraction works, it's not possible to only activate half of a muscle head or activate one half more than the other. When it contracts, it contracts.

    +1 - I appreciate the discussion.
  • Packerjohn
    Packerjohn Posts: 4,855 Member
    cwolfman13 wrote: »
    The only people who should be doing situps are those who have to pass a physical fitness test for military, law enforcement, etc...and really, I hope these organizations come to the conclusion that it's really a waste of an exercise.

    With both sit-ups and traditional crunches, you're working your hip flexors more than anything...people also "curl" their backs and put a lot of stress on their necks with these exercises.

    If you're going to do crunches, do them on a bosu or exercise ball or a declined bench and make sure you keep your back straight and don't pull on your neck. Planks are a great core workout and there are numerous others. That said, I wouldn't put all of my energies into a bunch of direct core/ab work...you're going to be far better off doing compound movements with some core isolation at the end of your workout than you are doing endless isolation stuff.

    Also keep in mind that core work isn't going to spot reduce fat...it's not going to flatten your stomach...losing fat in general is the only thing that is going to do that.

    I did an assessment at the Human Performance lab of a local university. Part of the assessment was sit ups. Even though I hadn't done sit ups for years (favoring ab rollouts and compound movements) I got enough sit ups on the test to be in the top 1% for my age group.

    I would practice if I had a job where I had to pass a sit up test, but they would not be my go to exercise.
  • _lyndseybrooke_
    _lyndseybrooke_ Posts: 2,561 Member
    If you're bad at planking, that means your core isn't very strong. How to get better at planking? Plank! You won't get better at it if you don't do it. Just keep doing it until you can hold it for longer and longer and longer.

    I used to barely be able to hold a plank for 20 seconds. Now I do 60-second intervals (though I could do more...it gets boring after awhile) with a 10lb weight on my back. Practice makes perfect.
  • gleesonstacey
    gleesonstacey Posts: 8 Member
    If you're bad at planking, that means your core isn't very strong. How to get better at planking? Plank! You won't get better at it if you don't do it. Just keep doing it until you can hold it for longer and longer and longer.

    I used to barely be able to hold a plank for 20 seconds. Now I do 60-second intervals (though I could do more...it gets boring after awhile) with a 10lb weight on my back. Practice makes perfect.

  • gleesonstacey
    gleesonstacey Posts: 8 Member
    If you're bad at planking, that means your core isn't very strong. How to get better at planking? Plank! You won't get better at it if you don't do it. Just keep doing it until you can hold it for longer and longer and longer.

    I used to barely be able to hold a plank for 20 seconds. Now I do 60-second intervals (though I could do more...it gets boring after awhile) with a 10lb weight on my back. Practice makes perfect.

    Hi no my core isn't very strong because I had a cesarean ten weeks ago and they cut through my stomach muscles. I am cleared to exercise but will take time to regain strength
  • gleesonstacey
    gleesonstacey Posts: 8 Member
    Thank-you everyone for replying to my question, it's still early days for me because I did only have a baby ten weeks ago but I'm just very impatient. I will continue to exercise daily though and I know in time I'll be strong again and thank-you for the info :)
  • middlehaitch
    middlehaitch Posts: 8,486 Member
    If you are only 10 weeks post partum try these. (Link below)
    Back in the old days, 42 years ago, this is what we were taught by the visiting nurse to help 'pull our tummies in'.

    I never knew they had a name, but have always done them.

    Cheers, h.

    http://www.bodybuilding.com/fun/ms-fit5.htm
  • Sued0nim
    Sued0nim Posts: 17,456 Member
    Thank-you everyone for replying to my question, it's still early days for me because I did only have a baby ten weeks ago but I'm just very impatient. I will continue to exercise daily though and I know in time I'll be strong again and thank-you for the info :)

    10 weeks post-partum and major abdominal surgery - you really need to work on your patience

    it took you 9 months to make a baby, it will take you a similar time to recoup - your post-partum hormones will not help

    I have had 2 sections - it is possible to get back - but you know what - my youngest was 10 years old, not 10 weeks when I finally got my mind in the right place

    I'm not saying it will take 10 years - I'm saying - give yourself a break - you've just made an entire human being, that's pretty damn amazing
  • EvgeniZyntx
    EvgeniZyntx Posts: 24,208 Member
    Hm, weird, the English wiki article says pectoralis major only has 2 heads, the German one says 3.

    Other than the clavicular and sternocostal portions of pectorals major, the German site talks about the pars abdominalis. Which is not what is shown in that terrible image on the wiki site.

    The pars abdominals would be here, in green.

    pectoralis-1513A3986CB47E62557.jpg

    And an interesting article on the subject:
    http://suppversity.blogspot.fr/2011/07/suppversity-emg-series-musculus.html
  • cafeaulait7
    cafeaulait7 Posts: 2,459 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?

    To my understanding of how muscle contraction works, it's not possible to only activate half of a muscle head or activate one half more than the other. When it contracts, it contracts.

    You can contract parts of the abs separately. I can belly roll (so independently move the upper or lower, even middle, lol), but watch this for some insane examples this lady can do!
    https://www.youtube.com/watch?v=-RsR9uHc6Ew
  • Carlos_421
    Carlos_421 Posts: 5,132 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?

    To my understanding of how muscle contraction works, it's not possible to only activate half of a muscle head or activate one half more than the other. When it contracts, it contracts.

    You can contract parts of the abs separately. I can belly roll (so independently move the upper or lower, even middle, lol), but watch this for some insane examples this lady can do!
    https://www.youtube.com/watch?v=-RsR9uHc6Ew

    That's gross...
  • Carlos_421
    Carlos_421 Posts: 5,132 Member
    Isolation holds are most effective, IMO. The core is a stabilizer... Maintaining tension throughout the movement (whatever the movement) is very important. Crunches will work the upper abdominals, hanging knee raises and leg raises (as you progress) will smash the lower abdominals. However, that's not all there is. Planks are great for working the transverse abdominis (the muscle underneath the "six pack" abdominal muscles, used primarily for stability and support for the spine). Also, as mentioned above, I would suggest everyone work their way up to performing ab-rollouts on a regular basis with good form. For most people, this movement takes time to get down. Start with a basic knee plank with a med ball under your elbows. Roll the med ball out so your torso is extended and come back to start. And eventually you'll be able to work up to push-up plank walk outs followed by the ab rollout.

    There are no upper and lower abdominals...

    lol, just like there's no "upper and lower" pec... but different workouts will work different areas more directly. ie: incline bench, decline bench, flat bench...


    Pectoralis major is made up of 3 parts that are layered top to bottom, going from your shoulder to your sternum.
    Pectoralis_major.png

    Rectus abdomnis is one singular muscle each on the left and right side of your navel going from below your chest downwards to your crotch. There can't physically be an "upper and lower" part to it any more than there can be an upper and lower biceps.
    Rectus_abdominis.png

    The separation into a 6-8 pack is due to connective tissue located on top of it.

    I understand the anatomy. I was just of the thought that it's possible to target the upper portion of the rectus abdominis in a way that requires more activity in that region than in the lower region of the muscle. I understand it being a single muscle means you can't isolate one region of the muscle without some activation throughout the entire part... Sounds to me like you're saying that's not possible?

    To my understanding of how muscle contraction works, it's not possible to only activate half of a muscle head or activate one half more than the other. When it contracts, it contracts.

    +1 - I appreciate the discussion.

    This is how these discussions should go.

    tumblr_mjdeu1vL2T1rgqr0mo1_1280.jpg
  • Carlos_421
    Carlos_421 Posts: 5,132 Member