Alvis Gómez KM1, Martínez Vallejo TA1
1Universidad Nacional de Colombia, Corporal Movement Department, Bogota, Colombia
Background: The abdominal-pelvic systems pressures in women, increase under conditions of pregnancy and childbirth. In urinary continence the connective tissues, muscle chains and suspension structures coordinated by the neural control systems are in equilibrium. However, any variation in magnitude, length or mechanical work of these systems, could cause functional failures resulting in urinary incontinence.
Purpose: To develop a theoretical model and the mathematical function that supports it, that describes the behavior of the fascial and muscular elements of urinary continence systems during pregnancy.
Methods: Descriptive, propositive study, in which a theoretical review of the structural relations of the abdominopelvic system (Pelvic and Abdominal Muscle Strength; Pelvic, Abdominal, and Fetal Visceral Masses; and, Fascial System tension) is performed and translated into mechanical conditions of tension and pressure. Once these load conditions (pressure and tension) are specified, a proposal for weighting variables is structured on the basis of which structure. This research work does not require approval by the Research Ethics Committee given that it did not perform any type of tests on humans or animals. However, the use of scientific evidence is framed in the ethical use of it and respect for copyright laws.
Results: The theoretical model and the mathematical equations that suport it are formulated, generating a model of three equations, one for the determination of the Pressure, a second equation that characterizes the behavior of the Tension of the Endopelvic Fascia in the "x" axis; and, a third equation to calculate the Tension of the Endopelvic Fascia in the "y" axis, which capture the behavior of the mentioned variables in a model of mass - spring type that behaves under the theory of simple harmonic movement.
Conclusion(s): The model is based fundamentally on a tensegril system, which allows to predict the behavior of the pressures and tensions in the abdominopelvic system, based on two outcome variables (Intracavitary Pressure and Endopelvic Tension) that depend on the relative weighted weights of the variables taken in account: muscle strength (abdominal and diaphragmatic), fetal mass and visceral mass (abdominal and pelvic), the area of the pelvic diaphragm, the speed of contraction of the anus and the force of gravity.
Implications: The model and its mathematical function, becomes the basic input for future research in which information is collected to predict the behavior under load and to design strategies to prevent urinary incontinence conditions, as well as other dysfunctions that affect the women´s health and its functioning.
Keywords: Urinary Incontinence, Pelvic Floor, Fascia
Funding acknowledgements: Department of Human Body Movement of the Faculty of Medicine - Universidad Nacional de Colombia- Bogotá Branch.
Purpose: To develop a theoretical model and the mathematical function that supports it, that describes the behavior of the fascial and muscular elements of urinary continence systems during pregnancy.
Methods: Descriptive, propositive study, in which a theoretical review of the structural relations of the abdominopelvic system (Pelvic and Abdominal Muscle Strength; Pelvic, Abdominal, and Fetal Visceral Masses; and, Fascial System tension) is performed and translated into mechanical conditions of tension and pressure. Once these load conditions (pressure and tension) are specified, a proposal for weighting variables is structured on the basis of which structure. This research work does not require approval by the Research Ethics Committee given that it did not perform any type of tests on humans or animals. However, the use of scientific evidence is framed in the ethical use of it and respect for copyright laws.
Results: The theoretical model and the mathematical equations that suport it are formulated, generating a model of three equations, one for the determination of the Pressure, a second equation that characterizes the behavior of the Tension of the Endopelvic Fascia in the "x" axis; and, a third equation to calculate the Tension of the Endopelvic Fascia in the "y" axis, which capture the behavior of the mentioned variables in a model of mass - spring type that behaves under the theory of simple harmonic movement.
Conclusion(s): The model is based fundamentally on a tensegril system, which allows to predict the behavior of the pressures and tensions in the abdominopelvic system, based on two outcome variables (Intracavitary Pressure and Endopelvic Tension) that depend on the relative weighted weights of the variables taken in account: muscle strength (abdominal and diaphragmatic), fetal mass and visceral mass (abdominal and pelvic), the area of the pelvic diaphragm, the speed of contraction of the anus and the force of gravity.
Implications: The model and its mathematical function, becomes the basic input for future research in which information is collected to predict the behavior under load and to design strategies to prevent urinary incontinence conditions, as well as other dysfunctions that affect the women´s health and its functioning.
Keywords: Urinary Incontinence, Pelvic Floor, Fascia
Funding acknowledgements: Department of Human Body Movement of the Faculty of Medicine - Universidad Nacional de Colombia- Bogotá Branch.
Topic: Women's & men's pelvic health; Human movement analysis; Professional practice: other
Ethics approval required: No
Institution: UNIVERSIDAD NACIONAL DE COLOMBIA
Ethics committee: Faculty of Medicine of the Universidad Nacional de Colombia
Reason not required: It does not require approval given that it did not perform any type of tests on humans or animals.
All authors, affiliations and abstracts have been published as submitted.
