From the Field Guide to Being an Awesome Birth Partner:
When a woman is trying to push a baby out, it can be helpful for her to widen the birth canal by moving her legs to the side and toward her head. While it’s theoretically possible for a woman to pull her legs back by herself while still pushing strongly, it’s not the best use of her energy. You may be asked to “hold her legs”, or notice the opportunity yourself. Your wife will guide you by moving her legs to where they need to be. Your part is to hold them there during a contraction so that she can push, then gently move them back to a resting position. It’s easier than it sounds, but be ready for it.
That paragraph pretty well covers the basics of leg holding. It makes sense when you’re there, going through it, but it does help to know what to expect and to be ready for it.
Here are a few other notes:
- She only needs her legs held during pushing, which is toward the end of labor (Stage 2, as it’s called). She probably won’t want her legs held too early or too late in the process. Once the baby is born, holding her legs will just annoy her.
- You’ll probably only hold one leg. A member of the medical team will most likely take the other.
- She’ll only need her legs held in certain pushing positions. If she’s trying different pushing positions, you might be able to help in other ways (maybe holding her steady during a push).
- The leg positioning you’re after goes something like this: lie on your back with your knees bent and your legs flat on the floor. Let your legs fall open, apart from each other. Then, keeping your legs as far apart as possible, bend your legs at the hips to move your knees as close to the same-side shoulder as possible.
- Pull gently but firmly (don’t pull too far, pinch/twist her skin, or anything uncomfortable like that). When you’re done, slowly and gently return her leg to a resting position.
It’s not complicated, and isn’t always necessary. But if she starts pulling her legs back, help her out. She’ll appreciate the help, and even more than that, she’ll appreciate that you’re paying attention and trying to help her before she asks.