Difference between sit ups and crunches?
920106
Sit ups are performed by flexing your hips so in order to sit up from a pronate position. Picture a side profile of your hips with your thighs in place in relation to your body. When in the "down" position of sit-ups, your thighs are in a straight line with your body. In the "up" position, your thighs are folded up in relation to your torso. Thought of it this way, it's obvious that sit-ups involve more the flexing of the hips, not the abdominals.\n\nThe abdominals are engaged minimally in sit ups, more as a function of keeping the torso straight during the movement. The abdominals have little active part in the movement itself. Sit ups have an added danger of over stressing the psoas muscles in your back, leading to back pains.\n\nCrunches are performed correctly by curling you trunk by contracting your abdominals in order to bring your ribs closer to your hips. A good image is a picture of rolling your torso up.\n\nAs the movement involved in crunches require the shortening of the distance between the ribs and the pelvis, the abdominals play a large and active part in carrying it out, making crunches the more effective exercise for toning the abdominals.
261869
Your ab muscles are no different than the other muscles in your body. They need time to recover from exercise. For maximum results, don't work them everyday. Every other day is best.\n\nIf you are trying to get your "six-pack", crunches are not the way to go. Everyone has a six-pack, but for most people, a layer of fat covers it. Even though you have a flat stomach, you probably still have just enough body fat to cover them up. It is important to eat properly and exercise to burn this fat.
1050379
Cardio will help the most, run more worry about sit ups later they burn less fat than sit ups. Alos, you cant burn fat from one area at a time, i.e sit ups does not burn more tummy fat tham any other excercise.
1036620
Neither.  All those do is help build some muscle up.  But if you have fat in that area, all you will have is muscle that you cant see under the fat.  You have to do cardio to burn fat, because spot training does not work- situps or crunches do not burn fat in just your stomach, the fat comes from all over your body- just like cardio.  Do a lot more running and biking 45-60 minutes a day, 5-6 days a week, that fat on your stomach will then disappear.  Do the crunches or stiups to have a nice looking stomach when the cario has removed the fat :)
1005188
It is good to alternate from time to time otherwise you muscles will get used to one exercise and you will hit a plateau.  Flat bench press works you pecs as a whole, while incline focuses more on the upper fibers of you pecs.\n\nIncline sit ups target more of you lower abdominals because it forces you to contract your abs as a whole rather than the traditional crunch which typically works your upper fibers.  Try working your abs by flexing up your knees while hanging from a chin up bar.  This will force your spine to flex from bottom up rather than top down, focusing more on you lower ab fibers.
640419
Crunches are great for abs.Lie on your back bring knees to chest and hold them there,now try to rise your shoulders off the floor.Backwards leg lifts are great for toning your backside.Get on all fours and extend one leg,bending it at the knee,while leg is bent push your heel upwards.Lunges are also great.Stand with feet slightly apart,step forward with on leg,bending at the knee with both.You should do at least 5 sets of 10 on these.If you feel you can do more,Go for it.GOOD LUCK!!!
954439
Doing a lot of abdominal exercises everyday won't do much if you've got a layer of fat covering it.  Everyone has a six-pack, but it's hidden (under the fat).  You have to do cardio to burn body fat.  Just doing crunches will only strengthen your abs, not expose them.
53517
Crunches will make your belly look better and improve your posture. However, they won't get rid of the fat over or under the muscles. Aerobic exercise (walking, running, etc) will burn up those fat cells. Even liposuction can't get rid of all belly fat, only the fat near the surface of the lower belly. So start reducing caloric intake,huffing and puffing, and then start the crunches!
282467
Hope these links help:\n\nBest sit ups:\nhttp://news.bbc.co.uk/2/hi/health/3160355.stm\n\nHow to do a sit up:\nhttp://www.todmaffin.com/blogs/howtodostuff/?p=9\n\nSit up guide and test:\nhttp://www.fitness4living.co.uk/sit_ups.htm\n\nThe site with pics on how to do sit ups is:\nhttp://www.get-six-pack-abs.com/stomach-exercises.html
12523
pushups for abs lol.. thats a new one..hehe\n\nDo\n1)crunches, \n2)situps\n3)leg raises on a dip bar not lying down and not straight legged as it strains the lower back\n4)pullovers as it develops the serratus abs muscles
990046
Situps and crunches will get you the six pack.  But, remember, if there is a layer of fat over it, no one will be able to see it.  So, make sure you do the cardio and other exercises to remove any excess body fat.
318410
Well, that's kind of what doing sit-ups is supposed to do :) Try doing crunches instead.  Lay on your back with your legs either resting on a bench or a bed, put your hands behind your head, and use your abs to pull your shoulder blades off the ground.  It'll work mainly your upper abs, so try to supplement by doing some bike work or knee tucks, flutter kicks, etc., for your lower abs.
264652
I don't think so bec. when you do abdominal crunches you are working your abdominal muscles which are separate from your reproductive system. Then again I maybe wrong
679773
Fat for women tends to mostly go to their stomachs and their thighs. Doing crunches is good for your health, as it increases the muscles of your stomach.  However, THERE IS NO WAY TO SPOT-REDUCE FAT (i.e. you can't reduce fat by working out the place that is fat; you can only increase muscles).  Fat is reduced equally for all parts of the body when exercising.  It mostly depends on your nutrition and all-round fitness level.  I suggesting eating more healthy foods instead of junk and beginning an all-round exercise program.
47134
Focus on crunches which work the abdominals much better than sit-ups.  \n\nHere's a short list, but I would advise to seek the advice of a personal trainer for proper execution and intensity.\n\nhttp://preventdisease.com/fitness/Strength_Exercises_abdominals.html
629623
Most think doing crunches or sit-ups will do the job. But we are what we eat.. Think about that. I don't even know you but I am sure you need to look at your diet. I'm not bagging you, just it's the diet that's most important. Then exercise. Good luck !!!
131104
i workout my abs a lot. and i think the most effective way is elevating ur legs onto like a chair, so only ur back is on the ground and then either doing crunches or sit-ups from that position.