Participants in this group receive a one-time, written health education leaflet, without any physical or in-person instruction. The leaflet includes information on the occurrence and causes of urinary incontinence during pregnancy, dietary recommendations, weight management, and illustrated instructions for Kegel exercises.

Participants in this group receive four in-person sessions of conventional pelvic floor muscle training (PFMT) over an 8-week period. The training is delivered through interactive, hands-on teaching methods, incorporating posture positioning, guided breathing techniques, and imagery-based instructions (e.g., "closing the door," squeezing the buttocks) to enhance awareness and execution of Kegel contractions.

This group receives sensorimotor-enhanced pelvic floor muscle training (PFMT) in four in-person sessions over an 8-week period. The training incorporates interactive instruction with body positioning, guided deep breathing, and finger-based tactile feedback. Participants are guided to sense the lift and contraction of their pelvic floor muscles through palpation techniques, aiming to enhance muscle awareness and neuromuscular coordination.

"Four in-person traditional pelvic floor muscle training sessions are scheduled over an eight-week period. The training involves interactive, hands-on teaching that incorporates body positioning, guided breathing, and the 'closing and opening gate' theory. This includes imagery techniques such as buttock squeezing and simulating the action of stopping urine flow to facilitate pelvic floor muscle contractions.

Mean number of normal voiding episodes per day, urinary incontinence episodes per day, urinary urgency episodes per day, and mean daily fluid intake recorded using a 3-day bladder diary.

Total score measured using the Urinary Distress Inventory-6 (UDI-6). Scores range from 0 to 100, with higher scores indicating greater urinary symptom distress.

Total score measured using the Incontinence Impact Questionnaire-7 (IIQ-7). Scores range from 0 to 100, with higher scores indicating greater impact of urinary incontinence on daily activities.

Domain scores measured using the King's Health Questionnaire (KHQ), including General Health Perception, Role Limitation, Physical Limitation, Social Limitation, Personal Relationships, Emotions, Sleep/Energy, and Severity Measures. Scores range from 0 to 100, with higher scores indicating poorer quality of life.

Total score measured using the WHOQOL-BREF Taiwan Version. Higher scores indicate better quality of life.

Duration of the second stage of labor obtained from medical records.