Professional cyclist Isabel King recently completed the UNBOUND Gravel race, a 207-mile endurance event in Kansas, while navigating the challenges of being a breastfeeding mother less than a year postpartum. The LA-based athlete, who has competed in the race four times previously, faced a new personal challenge in managing her pumping schedule alongside the demands of the race. Her experience highlighted the unique physical and logistical considerations for nursing mothers participating in extreme endurance sports.
King, who gave birth to her daughter Hazel via cesarean section last August, adjusted her training and fueling strategies significantly. She noted that her pre-race tapering likely differed from that of her peers, incorporating pumping sessions. King had anticipated needing a pit stop around the 150-mile mark to pump, as nursing mothers typically need to express milk every two to three hours to avoid discomfort and potential health issues like inflammation or mastitis. However, due to race conditions, including heat and the difficulty of restarting after a stop, she ultimately completed the 12-hour, 17-minute race without pausing to pump.
Nutritional Adjustments and Milk Production
King's fueling strategy evolved from her pre-pregnancy routines, which relied heavily on energy gels and caffeine. During pregnancy, she incorporated more whole foods. Postpartum, she experienced an insatiable appetite, comparing it to a daily 200-mile race without eating. On race day, she consumed a significant amount of carbohydrates through sports drinks, gels, fig bars, and candy, totaling approximately 1,250 grams. Her plan was to