pause · postnatal · prenatal
Why Your Core Doesn't Work Lying Down (And What to Do Instead)
Freya Fit · April 16, 2026
Floor exercises build strength in a position your body rarely uses in daily life. Your core's real job is to stabilize you upright through real-world demands.
The premise
Most core exercises are done lying on the floor, but that strength rarely translates into the demands of daily life. Your core's real job is to stabilise you upright, while you move, lift and carry through the real world. Training it only on your back leaves a gap between what you practise and what you actually need.
Why floor exercises don't transfer
Your body almost never finds itself in a supine position during a normal day. Real demands are upright and loaded: lifting an infant out of a cot, pushing a stroller, carrying shopping up the stairs. Floor work builds strength in a position that doesn't reflect any of that. The moment you add gravity and movement, your core has to manage a completely different set of forces than the ones it rehearsed lying down.
The problem with floor-only training
Early postnatal floor work has real value. It helps you reconnect your breath and your pelvic floor in a low-pressure position. The problem is staying there. Prolonged floor-only training builds strength that doesn't carry over, because upright, loaded positions present dynamic forces that floor exercises simply can't simulate.
A functional core training approach
Functional training works your core the way life does: across multiple planes of movement, including twisting, bending and carrying, while you keep awareness of your breath and pelvic floor. Exercises like dumbbell swings, single-arm carries, deadlifts and standing rotations all challenge the core under realistic load. Hip-flexor mobility matters too, because it lets the pelvis sit in a good position before you start loading it.
Building readiness
Progress is sequential. Establish a reliable connection between your breath and your pelvic floor in basic movements first, then layer on loaded work once that foundation is in place.