Slide show: Pregnancy exercises
Pregnancy exercises — pregnant woman practicing a one-leg v-sit with a Bosu Balance Trainer
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When you're comfortable with the v-sit, try the one-leg v-sit. Sit up straight on the trainer, with your feet flat on the floor and your arms extended straight in front of you. Lift your right foot off the floor, then lean backward until you feel your abdominal muscles contract. Hold for several seconds, then return to the starting position. Gradually work up to 10 repetitions. Repeat with your left leg.

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