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Completed

NCT Number: NCT07761156

Effect of Chewing Exercises and Abdominal Massage

This study is planned with a randomized controlled experimental design to determine the effects of chewing exercises during the pre-colonoscopy preparation process and abdominal massage applied after the procedure on abdominal pain and nausea symptoms.

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Key information

Conditions

Post-Colonoscopy Nausea and Vomiting Abdominal Pain Nausea Neurologic Manifestations Pain Pathological Conditions, Signs and Symptoms Signs and Symptoms Signs and Symptoms, Digestive Vomiting

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Sakarya University, Sakarya, Serdivan, Turkey (Türkiye)

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About this study

The research population consists of patients applying to the Surgical Endoscopy Unit of a Training and Research Hospital for a colonoscopy. The sample will consist of individuals who agree to participate and meet the inclusion criteria. The study will be composed of two different groups: an experimental group and a control group. Group assignment will be determined by a randomized lottery method conducted by an independent observer.

Patients in the experimental group will be instructed to perform chewing movements a day before the procedure during bowel preparation, as chewing is known to increase saliva flow rate via the oropharyngeal mechanism. The educational information provided to the chewing exercise group will be based on the "Oral-Motor Exercises Brochure" published by the Ministry of Health. Participants will be asked to perform the specified exercises at least 2-3 times for a duration of 25-30 minutes the day before. Chewing is a recommended practice for generating saliva, relaxing gastric juice, and stimulating intestinal movements; thus, it is planned to alleviate the individual's post-colonoscopy gastrointestinal problems.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged 18 years and older
  • Conscious oriented cooperative and open to communication
  • Literate in Turkish

Exclusion criteria

  • Under 18 years old -Malignancy
  • Inadequate bowel cleaning
  • Pregnancy or suspected pregnancy
  • Mental disability or history of mental disorders
  • Receiving psychiatric treatment or using anxiolytic medications
  • History of prior bowel surgery
  • Nausea and vomiting complaints due to other diseases such as migraine

Treatment and study plan

Abdominal massage and chewing egzersize

Other

Arm Description: Patients in the experimental group will be instructed to perform chewing movements a day before the procedure during bowel preparation, as chewing is known to increase saliva flow rate via the oropharyngeal mechanism. Abdominal massage is a non-invasive, easy-to-apply method with no side effects, performed by nurses to reduce abdominal distension after colonoscopy. The researcher will apply it for 3-5 minutes when the patient is taken to the post-op recovery room after the procedure.

Primary outcomes

  1. Blood pressure measument

    Time frame: 4 months

    To measure blood pressure, the systolic and diastolic values are combined and expressed in mm/Hg.

  2. Oxygen saturation

    Time frame: 4 months

    Oxygen saturation will be expressed as a percentage.

  3. Pulse

    Time frame: 4 months

    The pulse rate will be measured and recorded as the number of heartbeats per minute.

  4. Pain assessment

    Time frame: 4 months

    Pain levels will be assessed on a scale from 0 to 10, where "0" indicates no pain and "10" indicates very severe pain.

  5. Presence of Nausea Before and After Colonoscopy (yes/no)

    Time frame: 4 months

    Nausea will be assessed based on participant self-report and recorded as a dichotomous outcome (present/absent) using the study data collection form. The presence or absence of nausea will be evaluated at three time points: before colonoscopy, after colonoscopy, and before discharge.

  6. Presence of Vomiting Before and After Colonoscopy (yes/no)

    Time frame: 4 months

    Vomiting will be assessed based on participant self-report and/or direct observation and recorded as a dichotomous outcome (present/absent) using the study data collection form. The presence or absence of vomiting will be evaluated at three time points: before colonoscopy, after colonoscopy, and before discharge.

Sponsors and collaborators

Lead sponsor

Sakarya University

Other

Registry information

Official study title

The Effect of Chewing Exercises and Abdominal Massage on Abdominal Pain and Nausea Following Colonoscopy

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Aug 12, 2026
Registry last updated
Aug 12, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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