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Pregnancy - Prenatal TestingNCT07512999

The Effect of Using Nature Sounds and Virtual Reality During the Non-Stress Test

A study testing Virtual Reality and Nature sounds in people with Pregnancy - Prenatal Testing, run by Amasya University.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The aim of this study is to examine the effect of using nature sounds and virtual reality during the non-stress test on fetal well-being, maternal anxiety, comfort, and satisfaction. The study sample will consist of all pregnant women admitted to the Non-Stress Test (NST) unit. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy - Prenatal Testing
What is being tested?
Virtual Reality and Nature sounds
Could I receive a placebo?
No, everyone receives an active treatment
How many people
150 participants
Where
No sites listed yet
Study dates
1 Jul 2026to 31 Mar 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Being 18 years of age or older
  • Being at 32 weeks of gestation or beyond
  • Having a healthy pregnancy
  • Having a singleton and viable pregnancy
  • Not using tobacco or alcohol
  • Having eaten at least two hours before the NST procedure

Who cannot join

  • Having any communication impairment (language, vision, hearing, speech, etc.)
  • Having a physical or cognitive condition that prevents the use of the virtual reality application and nature sound Having a diagnosis of a high-risk pregnancy Having a diagnosis of a significant chronic (cardiac, renal, neurological, etc.) or psychiatric disorder (psychosis, neurosis, substance dependence, etc.) Having a multiple pregnancy Having a fetus with an anomaly Experiencing fetal distress requiring emergency intervention Having uterine contractions

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Elif KETEN EDİS, Assoc.Prof, PhD contact

+90 358 211 50 05 ext. 4802

elifketen05@gmail.com

Sevgi ARSLAN, BSc, RN contact

+90 358 211 50 05

sevgiedaarslan@gmail.com

About this study

Official title: The Effect of Using Nature Sounds and Virtual Reality During the Non-Stress Test on Fetal Well-Being, Maternal Anxiety, Comfort, and Satisfaction

The aim of this study is to examine the effect of using nature sounds and virtual reality during the non-stress test on fetal well-being, maternal anxiety, comfort, and satisfaction. The study sample will consist of all pregnant women admitted to the Non-Stress Test (NST) unit. A total of 150 women will be included in the sample: 50 for the virtual reality group, 50 for the nature sounds group, and 50 for the control group.

Read the detailed description

Pregnancy is a multidimensional process characterized not only by physiological changes but also by the restructuring of social roles and psychological adaptation. The changes that occur during this process affect both the mother and the fetus. Increased maternal stress and anxiety may influence fetal development through hormonal mechanisms. Therefore, regular and holistic monitoring of pregnancy is important. Antenatal care is a systematic evaluation process aimed at protecting maternal and fetal health and identifying risk factors. One of the frequently used non-invasive methods for assessing fetal health is the non-stress test. It is widely used because it is easy to administer and considered safe. The test evaluates the relationship between fetal heart rate, fetal movements, and uterine contractions. A reactive result indicates that the fetus is in good condition, whereas a non-reactive result may require further evaluation. Although the non-stress test is non-invasive and painless, it generally lasts at least 20 minutes, and remaining in the same position may lead to hypotension, discomfort, and anxiety. Increased maternal anxiety may affect fetal heart rate patterns, increase false-positive rates, and result in unnecessary interventions. Therefore, non-pharmacological interventions aimed at increasing maternal comfort and reducing anxiety during the NST process are important. Nature sounds may reduce perceived stress by promoting relaxation, while virtual reality may decrease anxiety and increase satisfaction by diverting attention away from the environment. The aim of this study is to determine the effects of using nature sounds and virtual reality during the non-stress test on fetal well-being, maternal anxiety, comfort, and satisfaction. The study sample will consist of all pregnant women admitted to the Non-Stress Test (NST) unit. A total of 150 women will be included in the sample: 50 for the virtual reality group, 50 for the nature sounds group, and 50 for the control group. Personal Information Form, Non Stress Test Evaluation Form, Visual Analog Scale for Satisfaction (VAS-Satisfaction), Visual Analog Scale for Comfort (VAS-Comfort), Spielberger State-Trait Anxiety Inventory (STAI) Scale, Intervention for the experimental group, the Evaluation Form (Virtual reality, Nature sounds) will be used in data collection.

Being tested
Virtual Reality, Nature sounds, Control
Keywords
Non-Stress Test, Pregnancy, Anxiety, Fetal health
Medical subject headings
Anxiety Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Virtual RealityBehavioural

    Women treated with virtual reality will be presented with videos of natural scenes (forest and sea) accompanied by nature sounds and asked to watch. The headset will be fitted before the procedure begins, and women will be instructed on how to continue watching the video while wearing the headset during the procedure.

  • Nature soundsBehavioural

    Women in the nature sounds group will be given the opportunity to listen to relaxing nature sounds (sea, rain, wind, river, birds) using MP3 players and headphones according to their preferences throughout the non-stress test.

  • ControlBehavioural

    Participants in the control group received standard care (verbal information about procedure and a short written information about the procedure) and no intervention will perform.

Study groups in NCT07512999
Study groupRoleWhat they receive
Virtual reality groupExperimentalAfter obtaining written informed consent from the women, data collection forms will be administered (Personal Information Form, Spielberger State-Trait Anxiety Inventory-STAI). This group will include 50 pregnant women. Following the administration of the survey form, the virtual reality headset will be introduced. The headset will be fitted before the procedure begins, and women will be instructed on how to continue watching the video while wearing the headset during the procedure. Women treated with virtual reality will be presented with videos of natural scenes (forest and sea) accompanied by nature sounds and asked to watch. After the procedure is complete, final tests will be conducted: Non-Stress Test Evaluation Form, Visual Analog Scale for Satisfaction (VAS-Satisfaction), Visual Analog Scale for Comfort (VAS-Comfort), Spielberger State-Trait Anxiety Inventory (STAI) Scale, Intervention for the experimental group, and the Evaluation Form (virtual reality, nature sounds).
Receives: Behavioral: Virtual Reality
Nature sounds groupExperimentalAfter obtaining written informed consent from the women, data collection forms will be administered (Personal Information Form, Spielberger State-Trait Anxiety Inventory-STAI). This group will include 50 pregnant women. Women in the nature sounds group will be provided with the opportunity to listen to relaxing nature sounds (sea, rain, wind, river, birds) using MP3 players and headphones, according to their preferences. After the procedure is complete, final tests will be conducted: Non-Stress Test Evaluation Form, Visual Analog Scale for Satisfaction (VAS-Satisfaction), Visual Analog Scale for Comfort (VAS-Comfort), Spielberger State-Trait Anxiety Inventory (STAI) Scale, Intervention for the experimental group, and the Evaluation Form (virtual reality, nature sounds).
Receives: Behavioral: Nature sounds
Control groupExperimentalAfter obtaining written informed consent from the women, data collection forms will be administered (Personal Information Form, Spielberger State-Trait Anxiety Inventory-STAI). This group will include 50 pregnant women. Women in the control group will not receive any intervention. After the non-stress test is complete, final tests will be conducted: Non-Stress Test Evaluation Form, Visual Analog Scale for Satisfaction (VAS-Satisfaction), Visual Analog Scale for Comfort (VAS-Comfort), Spielberger State-Trait Anxiety Inventory (STAI) Scale, Intervention for the experimental group, and the Evaluation Form (virtual reality, nature sounds).
Receives: Behavioral: Control

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. State-Trait Anxiety Inventory (STAI) Scale

    The inventory was developed by Spielberger, Gorsuch, and Lushene in 1970. An adaptation, validity, and reliability study of the State-Trait Anxiety Scale in Turkish was conducted by Oner and Le Compte in 1983. The scale consists of two subdimensions: the state anxiety has 20 items and is used to determine what is felt at a specific moment under certain conditions, and the trait anxiety has 20 items and is used to determine what has been felt in the last 7 days. High scores from each subscale indicate a high level of anxiety. The Cronbach's a for the STAI ranges from 0.83 to 0.87

    Measured: Before the non-stress test and after the procedure is completed (20 minutes after the start of the procedure)

  2. Visual Analog Scale for Comfort (VAS-Comfort)

    The Visual Analog Scale (VAS) will be used to determine the comfort levels of the participants. Developed by Price et al. in 1983 for the purpose of evaluating subjective pain, the VAS is an easy-to-apply measurement method whose validity and reliability are accepted in the international literature (Price et al., 1987; Akbay, 2026). Based on the individual's subjective evaluation, the VAS is used not only to determine the level of pain but also to evaluate subjective conditions such as fatigue and discomfort. The Visual Analog Scale (VAS) is a 10 cm long scale that can be arranged vertically or horizontally, with endpoints defined by different expressions. In this study, to evaluate the comfort levels of individuals, the leftmost end of the scale will be defined as "0 = Not comfortable at all" and the rightmost end as "10 = Very comfortable". To make the scale more understandable and applicable, vertical lines and numerical values will be used on the horizontal line.

    Measured: After the non-stress test is completed (20 minutes after the start of the procedure)

  3. Visual Analog Scale for Satisfaction (VAS-Satisfaction)

    The VAS satisfaction form will be used to determine the satisfaction levels of the participants. The Visual Analog Scale (VAS) is a reliable and easily applicable measurement method with endpoints defined by different expressions, and is 10 cm long. VAS is also used to evaluate subjective states such as satisfaction. In this study, to evaluate the satisfaction levels of individuals, the leftmost end of the scale will be defined as "0 = Not satisfied at all" and the rightmost end as "10 = Very satisfied". In order to make the scale more understandable and applicable, vertical lines and numerical values will be used on the horizontal line.

    Measured: After the non-stress test is completed (20 minutes after the start of the procedure)

  4. Non Stress Test Evaluation Form

    The NST Evaluation Form will be used to determine the emotional state of participants during the NST procedure and to evaluate the results of the non-stress test (NST). The form includes variables such as NST recording time, basal fetal heart rate (FHR), presence and number of accelerations and decelerations, and whether it is evaluated as reactive or non-reactive. The National Institute of Child Health and Human Development 2008 guidelines will be used to evaluate the NST results.

    Measured: After the non-stress test is completed (20 minutes after the start of the procedure)

  5. Intervention for the experimental group The Evaluation Form (Virtual reality, Nature sounds)

    In this study, an intervention evaluation form prepared by the researcher will be used for the virtual reality and nature sounds groups. Separate intervention evaluation forms will be used for the nature sounds and virtual reality groups. The form includes questions about the participants' emotional state during the intervention, whether they would like to use it again, and whether they would recommend the application to other pregnant women.

    Measured: After the non-stress test is completed (20 minutes after the start of the procedure)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Apr 2026
  2. Study start1 Jul 2026 (estimated)
  3. Primary completion1 Mar 2027 (estimated)
  4. Study completion31 Mar 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized
Masking
None (open label)
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07512999
Sponsor's protocol ID
S-Tez
Status last verified
Apr 2026
First submitted
30 Mar 2026
Last updated
6 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Virtual Reality and Nature sounds in people with Pregnancy - Prenatal Testing, run by Amasya University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 6 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Elif KETEN EDİS, Assoc.Prof, PhD (+90 358 211 50 05 ext. 4802, elifketen05@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

State-Trait Anxiety Inventory (STAI) Scale (time frame: Before the non-stress test and after the procedure is completed (20 minutes after the start of the procedure)). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Apr 2026.

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