Clinical observation on effects of different intervention movements on intravaginal pressure in research subjects

LUO Suiyu; XU Jun; ZHANG Lingyun; LI Yaping; CHEN Mengyao

doi:10.3969/j.issn.1674-3806.2025.11.07

Abstract：Objective To explore the effects of different intervention movements on intravaginal pressure in research subjects.Methods A total of 163 subjects who underwent pelvic floor examination in Gynecological Pelvic Floor Center,Henan Provincial People's Hospital from June 2024 to August 2024 were selected,among whom 50 subjects who suffered from stress urinary incontinence(SUI)were selected as SUI group and 113 subjects without SUI were selected as non-SUI group.Using body mass index(BMI)≥28 kg/m2 as the obesity standard,there were 8 obese individuals(obese group)and 155 non-obese individuals(non-obese group).The changes in intravaginal pressure of the subjects under the conditions of lying on the back at rest,electrical stimulation of abdominal muscles,abdominal crunch movement,forceful coughing and forceful defecation were observed.Results For the subjects,their intravaginal pressure was the highest when they underwent forceful coughing movement[(111.02±15.37)cmH2O],followed by that when they underwent forceful defecation movement[(97.72±11.35)cmH2O],then followed by that when they underwent abdominal crunch movement[(87.15±10.72)cmH2O]and finally followed by that when they underwent electrical stimulation of abdominal muscles[(78.95±7.98)cmH2O].There were statistically significant differences between the intravaginal pressure measured under the conditions of different movements mentioned above and the intravaginal pressure measured under the condition of lying on the back at rest[(75.72±7.85)cmH2O](P＜0.001).Under the conditions of lying on the back at rest,electrical stimulation of abdominal muscles,abdominal crunch movement and forceful defecation movement,the intravaginal pressure of the SUI group was significantly higher than that of the non-SUI group(P＜0.05).However,there was no statistically significant difference in the intravaginal pressure between the two groups under the condition of forceful coughing movement(P＞0.05).Under the conditions of lying on the back at rest,electrical stimulation of abdominal muscles and abdominal crunch movement,the intravaginal pressure of the obese group was significantly higher than that of the non-obese group(P＜0.05),and under the conditions of forceful coughing movement and forceful defecation movement,there was no statistically significant difference in the intravaginal pressure between the two groups(P＞0.05).Conclusion Both forceful coughing and forceful defecation can exert considerable pressure on the pelvic floor,so in daily life,it is advisable to avoid forceful coughing and keep a normal bowel movement.Compared with abdominal crunch movement,electrical stimulation of abdominal muscles has a smaller impact on pelvic floor pressure.Therefore,electrical stimulation of abdominal muscles is a better choice for treating diastasis recti abdominis.