During pregnancy, the linea alba stretches to accommodate the growing uterus, the pelvic floor supports up to 40 pounds of additional load, and the hormone relaxin softens connective tissue for delivery. After birth, these tissues do not automatically return to their prior state, and research from the American Urogynecologic Society confirms that targeted rehabilitation is often needed to restore baseline strength.
Vaginal delivery can stretch pelvic floor muscles beyond their elastic capacity, while cesarean section disrupts fascia and abdominal wall integrity. Either pathway leaves the core and pelvic floor in a weakened state. Without progressive retraining, many women compensate with other muscle groups, leading to persistent symptoms months or even years later.
Hormonal shifts, particularly the sustained drop in estrogen during breastfeeding, further reduce tissue resilience. Combined with sleep deprivation and the physical demands of newborn care, the natural recovery window is often insufficient, which is why structured programs like our Core and Floor program can meaningfully accelerate return to function.
