TRX Exercises and Gastrointestinal Health in Swimmers

NCT07464509 | Completed

• 1 other identifier: 2025/72
• Study Type: interventional
• Target: 32
• Locations: 1 country
• Sites: 1

Brief Summary

Purpose Exercise-related gastrointestinal complaints are frequently reported in young athletes; however, evidence regarding the effects of resistance-based training modalities on bowel habits is limited. The aim of this study was to investigate the effect of an 8-week TRX program on bowel habits and gastrointestinal system of male child swimmers. Methods Thirty-two prepubertal male swimmers aged 9-13 years were voluntarily enrolled in the study. Participants were randomly allocated to either the TRX or control group. Both groups were evaluated using the Bristol Stool Scale and a questionnaire assessing defecation habits before and after the 8-week TRX exercise program.

Conditions

TRX Exercise; Bowel Habits; Gastrointestinal Symptoms; Swimming

Keywords

Swimming; TRX exercise; bowel habits; gastrointestinal symptoms

Outcome Measures

Primary Outcomes (1)

• Height and Body Weight/Body Mass Index (BMI)

  Body Weight;Measured in kilograms (kg). Height; Measured in meters (m). Body Mass Index (BMI) Calculated as body weight in kilograms divided by height in meters squared (kg/m²). Body Composition was calculated using the formula kg/m2.

  Time Frame: 8 Week

Secondary Outcomes (1)

• Bristol Stool Form Scale

  8 week

Other Outcomes (1)

• Questionnaire on Defecation Habits

  8 week

Study Arms (2)

TRX GRUP

EXPERIMENTAL

The TRX group participated in both the 8-week TRX exercise program and their regular swimming training program. The Bristol Stool Scale and a questionnaire assessing defecation habits were administered before and after the intervention.

Behavioral: Exercise

Control group

EXPERIMENTAL

The control group participated only in their regular swimming training program for 8 weeks. No additional intervention, such as another exercise program, was applied to the control group during the study.

Other: Randomized Controlled Trial

Interventions

Exercise BEHAVIORAL

In this model, a specific intervention is applied to the experimental group (TRX and swimming). Measurements are conducted before and after the intervention (pre-test / post-test). In the study, the TRX group performed TRX exercises in addition to their regular swimming training for 8 weeks, three days per week, for 45-60 minutes per session.

Also known as: Trx and Swimming

TRX GRUP

Randomized Controlled Trial OTHER

The control group participated only in their regular swimming training program for 8 weeks. No additional intervention, such as another exercise program, was applied to the control group during the stady.

Also known as: Swimming

Control group

Eligibility Criteria

• Age: 9 Years - 13 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• Who have been performance athletes for at least 2 years
• Male swimmers aged 9-13 years who trained in swimming at least 3 days per week,
• Had not participated in any resistance training other than regular swimming training in the last six months,
• Did not have chronic diseases such as asthma or chronic heart disease were included in the study.

You may not qualify if:

• Athletes with chronic diseases such as asthma or chronic heart disease, non-performance swimmers,
• Those who had participated in any resistance training other than regular swimming training within the last six months,
• Athletes whose parental consent forms were not obtained, those who missed more than three training sessions, and those who provided misleading answers or did not properly complete the questionnaire were excluded from the study.

Sponsors & Collaborators

• Aksaray University: lead

Study Sites (1)

Aksaray University

Aksaray, Aksaray, 68100, Turkey (Türkiye)

Location

MeSH Terms

Interventions

Exercise; Chloroplast Thioredoxins; Swimming; Randomized Controlled Trials as Topic

Intervention Hierarchy (Ancestors)

Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena; Chloroplast Proteins; Plant Proteins; Proteins; Amino Acids, Peptides, and Proteins; Thioredoxins; Locomotion; Controlled Clinical Trials as Topic; Clinical Trials as Topic; Clinical Studies as Topic; Epidemiologic Study Characteristics; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: SCREENING
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer Dr. Yağmur YILDIZ

Study Record Dates

• First Submitted: February 11, 2026
• First Posted: March 11, 2026
• Study Start: May 28, 2025
• Primary Completion: August 30, 2025
• Study Completion: August 30, 2025
• Last Updated: March 11, 2026

Record last verified: 2026-03

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)