1) She does sit-ups and leg lifts every morning.

2) Jerry says he does two hundred sit-ups a day.

3) He does 20 sit-ups every morning.

4) An acute attack of dizziness while doing my sit-ups.

5) I could get away with only forty twist sit-ups.

6) I could only manage three sit-ups.

7) You pin up another one recording how many sit-ups you managed.

8) The slower you do sit-ups,(http:///situp.html) the harder the movement is to do.

9) Traditional exercises like sit-ups, press-ups and pull-ups are great for strengthening the body, providing that you do them properly.

10) One neck exercise could damage the top of the spine while straight leg sit-ups could put strain on the back.

11) He also did sit-ups, but not in front of me.

12) When doing sit-ups, keep your hands crossed on your chest, rather than behind your neck.

13) The sit-ups start with the back off the board, and end before the upper body reaches the vertical position.

14) I do about three hundred sit-ups a day and it still refuses to firm up, but what else can I do?

15) Then he did exercises he had learned in the Armystraddle jumps, deep knee bends, sit-ups and push-up.

16) I can think of very little more boring than lying on the floor and doing sit-ups and leg lifts every morning.

17) Before you think it's too late to do those sit-ups, though, think again.

18) Toe touches and sit-ups should be avoided; they are particularly harmful to anyone who has osteoporosis in the spine.

19) The deep depressions and worn, flattened rug fields revealed where he lifted iron and where he did his thousands of situps.