The Effect of Pelvic Floor Muscle Exercises on the Inferior Vena Cava

NCT ID: NCT05654324

Last Updated: 2023-11-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

51 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-01

Study Completion Date

2023-10-02

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The aim of this study is to examine the effect of pelvic floor muscle exercises on the hemodynamic responses of the vena cava inferior in pregnant and non-pregnant women.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The IVC is responsible for approximately two-thirds of the total venous return to the heart. The blood flow in the IVC is affected by the respiratory and cardiac cycle. One of the factors affecting blood flow is pregnancy. Studies have shown that the hemodynamic responses of the IVC may vary depending on the position, and that the supine position puts pressure on the IVC during pregnancy.

Compression of the growing fetus against the IVC can cause supine hypotensive syndrome and fetal danger. However, there is no definite finding about the effects of exercise performed in the supine position. Jefferys et al. reported that the reduction in blood flow at rest is twice that that occurs during exercise and that the level of blood flow should not be a cause for concern in healthy asymptomatic women who choose to exercise in the supine position in late pregnancy. Based on this information, we predict that pelvic floor muscle exercises can change the hemodynamic responses of the IVC and reduce the compression on it.

In order to evaluate the effect of pelvic floor muscle exercises on hemodynamic responses of IVC and compression on it, pregnant and non-pregnant women will be measured by ultrasonography. Women eligible for the study will be seated and rested for 30 minutes before taking the measurement. Then, he will be taken to the supine position, rested for 2 minutes, and the first measurements will be taken at the 3rd minute. pelvic floor muscle exercises will be applied for 5 minutes as stated in the literature. Ultrasonographic measurements will be repeated in the supine position immediately after the pelvic floor exercises and 5 minutes after the exercise. Measurements will be applied to all participants in the same order. During the exercises blood pressure, heart rate and peripheral oxygen saturation will be monitored. Before and after the exercises, the heart rate and blood pressure parameters of the women will be recorded.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Supine Hypotensive Syndrome

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

This research is a prospective and controlled study. The data of the study will be collected from pregnant women (Experimental group) and non-pregnant women (Control group).
Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors
Double (Participant, Outcomes Assessor)

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Pregnant women

Pregnant women aged 18-40, 20-40 weeks of gestation.

Group Type EXPERIMENTAL

pelvic floor muscle exercises

Intervention Type OTHER

Before the pelvic floor exercises are taught to all women participating in the study, a brief informational training about the function and structure of the pelvic floor and pelvis will be given using visuals. The application protocol will be given by experienced specialist physiotherapists who have received special training on pelvic floor muscle training. In this study, the training protocol described by Mørkved et al and Bø et al will be used. An exercise series will consist of slow and fast muscle contractions of the pelvic floor muscles. The exercise series will include 10 reps of maximum pelvic floor muscle contraction held for 6 seconds followed by three rapid muscle contractions. A 10-second rest period will be given between each exercise series. A total of 5 minutes, 4 repetitions of pelvic floor muscle contraction series will be applied, including the rest period.

Non-Pregnant

Being a non-pregnant woman who is in the same age range as the experimental group.

Group Type ACTIVE_COMPARATOR

pelvic floor muscle exercises

Intervention Type OTHER

Before the pelvic floor exercises are taught to all women participating in the study, a brief informational training about the function and structure of the pelvic floor and pelvis will be given using visuals. The application protocol will be given by experienced specialist physiotherapists who have received special training on pelvic floor muscle training. In this study, the training protocol described by Mørkved et al and Bø et al will be used. An exercise series will consist of slow and fast muscle contractions of the pelvic floor muscles. The exercise series will include 10 reps of maximum pelvic floor muscle contraction held for 6 seconds followed by three rapid muscle contractions. A 10-second rest period will be given between each exercise series. A total of 5 minutes, 4 repetitions of pelvic floor muscle contraction series will be applied, including the rest period.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

pelvic floor muscle exercises

Before the pelvic floor exercises are taught to all women participating in the study, a brief informational training about the function and structure of the pelvic floor and pelvis will be given using visuals. The application protocol will be given by experienced specialist physiotherapists who have received special training on pelvic floor muscle training. In this study, the training protocol described by Mørkved et al and Bø et al will be used. An exercise series will consist of slow and fast muscle contractions of the pelvic floor muscles. The exercise series will include 10 reps of maximum pelvic floor muscle contraction held for 6 seconds followed by three rapid muscle contractions. A 10-second rest period will be given between each exercise series. A total of 5 minutes, 4 repetitions of pelvic floor muscle contraction series will be applied, including the rest period.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

Experimental group

* Being pregnant between the ages of 18-40,
* At least primary school graduate and able to read and write,
* The gestational age is 20-40 weeks,
* Not having any mental problems that prevent cooperation and understanding.

Control group

* Being a non-pregnant woman who is in the same age range as the experimental group,
* At least primary school graduate and able to read and write,
* Not having any mental problems that prevent cooperation and understanding.

Exclusion Criteria

* Pregnant women with acute or chronic diseases with poor placental adaptation and vascular damage such as diabetes, chronic arterial hypertension and preeclampsia, as the fetus is closer to the threshold of hypoxia and acidemia and adaptive phenomena may fail,
* Pregnant women with intra-uterine growth restriction and fetal anomaly,
* Pregnant women with cardiovascular disease,
* Pregnant women considered as high risk by the obstetrician,
* Pregnant women with premature, premature birth or miscarriage risk,
* Pregnant women diagnosed with neurological disease,
* Obese women (body mass index \> 30),
* Women whose IVC measurements cannot be made with ultrasonography,
* Women with severe low back pain (not able to do housework regularly),
* Women who have been diagnosed with a psychiatric illness,
* Women with a history of gynecological surgery,
* Women with pelvic floor dysfunction,
* Women who cannot lie in the supine position.
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Izmir University of Economics

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Seda Yakit Yesilyurt

Lecturer Dr

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Health Sciences University İzmir Tepecik Education and Research Hospital Gynecology and Obstetrics Clinic

Izmir, , Turkey (Türkiye)

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Turkey (Türkiye)

References

Explore related publications, articles, or registry entries linked to this study.

Kim DR, Wang E. Prevention of supine hypotensive syndrome in pregnant women treated with transcranial magnetic stimulation. Psychiatry Res. 2014 Aug 15;218(1-2):247-8. doi: 10.1016/j.psychres.2014.04.001. Epub 2014 Apr 12.

Reference Type BACKGROUND
PMID: 24768354 (View on PubMed)

Finnerty NM, Panchal AR, Boulger C, Vira A, Bischof JJ, Amick C, Way DP, Bahner DP. Inferior Vena Cava Measurement with Ultrasound: What Is the Best View and Best Mode? West J Emerg Med. 2017 Apr;18(3):496-501. doi: 10.5811/westjem.2016.12.32489. Epub 2017 Feb 24.

Reference Type BACKGROUND
PMID: 28435502 (View on PubMed)

Shailja S, Gupta I, Suri V. Inferior vena cava diameters in pregnant women for prediction of pregnancy-induced hypertension. Int J Gynaecol Obstet. 2004 Feb;84(2):164-5. doi: 10.1016/S0020-7292(03)00157-7. No abstract available.

Reference Type BACKGROUND
PMID: 14871520 (View on PubMed)

Singh Y, Anand RK, Gupta S, Chowdhury SR, Maitra S, Baidya DK, Singh AK. Role of IVC collapsibility index to predict post spinal hypotension in pregnant women undergoing caesarean section. An observational trial. Saudi J Anaesth. 2019 Oct-Dec;13(4):312-317. doi: 10.4103/sja.SJA_27_19.

Reference Type BACKGROUND
PMID: 31572075 (View on PubMed)

Klein-Weigel PF, Elitok S, Ruttloff A, Reinhold S, Nielitz J, Steindl J, Lutfi P, Rehmenklau-Bremer L, Hillner B, Fuchs H, Wrase C, Herold T, Beyer L. Inferior vena cava-syndrome. Vasa. 2021 Jul;50(4):250-264. doi: 10.1024/0301-1526/a000919. Epub 2021 Jan 18.

Reference Type BACKGROUND
PMID: 33459041 (View on PubMed)

Gagne MP, Richebe P, Loubert C, Drolet P, Gobert Q, Denault A, Zaphiratos V. Ultrasound evaluation of inferior vena cava compression in tilted and supine term parturients. Can J Anaesth. 2021 Oct;68(10):1507-1513. doi: 10.1007/s12630-021-02051-w. Epub 2021 Jul 1.

Reference Type BACKGROUND
PMID: 34212308 (View on PubMed)

Fields JM, Catallo K, Au AK, Rotte M, Leventhal D, Weiner S, Ku BS. Resuscitation of the pregnant patient: What is the effect of patient positioning on inferior vena cava diameter? Resuscitation. 2013 Mar;84(3):304-8. doi: 10.1016/j.resuscitation.2012.11.011. Epub 2012 Nov 21.

Reference Type BACKGROUND
PMID: 23178869 (View on PubMed)

Practice Guidelines for Obstetric Anesthesia: An Updated Report by the American Society of Anesthesiologists Task Force on Obstetric Anesthesia and the Society for Obstetric Anesthesia and Perinatology. Anesthesiology. 2016 Feb;124(2):270-300. doi: 10.1097/ALN.0000000000000935. No abstract available.

Reference Type BACKGROUND
PMID: 26580836 (View on PubMed)

Supine lying during pregnancy. Journal of Pelvic, Obstetric and Gynaecological Physiotherapy. 2018; 122:77-83

Reference Type BACKGROUND

Jeffreys RM, Stepanchak W, Lopez B, Hardis J, Clapp JF 3rd. Uterine blood flow during supine rest and exercise after 28 weeks of gestation. BJOG. 2006 Nov;113(11):1239-47. doi: 10.1111/j.1471-0528.2006.01056.x. Epub 2006 Sep 15.

Reference Type BACKGROUND
PMID: 16978230 (View on PubMed)

Dodhy AA. Inferior Vena Cava Collapsibility Index and Central Venous Pressure for Fluid Assessment in the Critically Ill Patient. J Coll Physicians Surg Pak. 2021 Nov;31(11):1273-1277. doi: 10.29271/jcpsp.2021.11.1273.

Reference Type BACKGROUND
PMID: 34689482 (View on PubMed)

Morkved S, Bo K, Schei B, Salvesen KA. Pelvic floor muscle training during pregnancy to prevent urinary incontinence: a single-blind randomized controlled trial. Obstet Gynecol. 2003 Feb;101(2):313-9. doi: 10.1016/s0029-7844(02)02711-4.

Reference Type BACKGROUND
PMID: 12576255 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

İEÜ_SYY

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.