"Sit-Ups Are Outdated And Need To Be Replaced By More Relevant Exercises: Experts"
http://www.techtimes.com/articles/118933...xperts.htm
I find sit-ups to be a good exercise still. The Navy found that they were causing lower back injuries. However, the key seems to be to pin the feet down so that instead of the back having to bend, the bend can be done lower down at the hips. It makes sense that bending the back should be avoided. However, if the back is held rigid, the sit-up should be safe.
http://www.techtimes.com/articles/118933...xperts.htm
I find sit-ups to be a good exercise still. The Navy found that they were causing lower back injuries. However, the key seems to be to pin the feet down so that instead of the back having to bend, the bend can be done lower down at the hips. It makes sense that bending the back should be avoided. However, if the back is held rigid, the sit-up should be safe.