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Effect of Chewing Exercises and Abdominal Massage

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

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07761156
Enrollment
60
Registered
2026-08-12
Start date
2025-06-01
Completion date
2025-09-30
Last updated
2026-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abdominal Pain, Post-Colonoscopy Nausea and Vomiting

Keywords

vomiting, colonoscopy, nausea, abdominal massage, gum chewing, abdominal pain

Brief summary

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.

Detailed description

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.

Interventions

OTHERAbdominal massage and chewing egzersize

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.

Sponsors

Sakarya University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)

Intervention model 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. 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. 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. Vital signs,

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Blood pressure measument4 monthsTo measure blood pressure, the systolic and diastolic values are combined and expressed in mm/Hg.
Oxygen saturation4 monthsOxygen saturation will be expressed as a percentage.
Pulse4 monthsThe pulse rate will be measured and recorded as the number of heartbeats per minute.
Pain assessment4 monthsPain levels will be assessed on a scale from 0 to 10, where "0" indicates no pain and "10" indicates very severe pain.
Presence of Nausea Before and After Colonoscopy (yes/no)4 monthsNausea 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.
Presence of Vomiting Before and After Colonoscopy (yes/no)4 monthsVomiting 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.

Countries

Turkey (Türkiye)

Contacts

STUDY_DIRECTORÖzlem Doğu, PhD

Sakarya University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 13, 2026