Effects of Omega-3 Supplementation on Exercise Performance, Body Composition, and Appetite Status in Female Athletes

NCT07054762 | Completed

• 1 other identifier: 2024-40160-196
• Study Type: interventional
• Target: 14
• Locations: 1 country
• Sites: 1

Brief Summary

Volleyball is a sport that requires high performance and aims to increase endurance. The intense training and competition tempo of athletes directs them to special nutritional needs. Omega-3 fatty acids, in particular, are known for their anti-inflammatory properties and positive effects on the cardiovascular system, and provide potential contributions such as supporting exercise performance, reducing stress levels and improving body composition in athletes. However, studies examining the effects of omega-3 on female volleyball players are rare in the literature. The purpose of this study is to determine the effect of omega-3 supplementation on exercise performance, body composition and appetite status in 2nd league women's volleyball team athletes. The research group consists of female volleyball players over the age of 18. The potential effects of the recommended level of omega-3 supplementation added to the daily nutrition programs of female athletes without changing their routine nutrition programs will be evaluated in the study. A single-blind placebo method will be used in this experimental and randomized controlled study. After the participants have a diet low in omega-3 for 2 weeks, they will be divided into two groups; The experimental group will be given 2 capsules of omega-3 supplements with breakfast for eight weeks, while the control group will be given a placebo capsule. This study aims to contribute to the literature on the effects of omega-3 supplements on athlete performance and to better understand the role of nutritional supplements on physiological parameters in female volleyball players. Anthropometric measurements of the athletes will be taken at the beginning of the intervention, every two weeks during the intervention, and at the end of the intervention, and a 24-hour retrospective food consumption record, a simplified nutritional appetite questionnaire, muscle pain assessment, and a muscle endurance test will be applied. The collected study data will be analyzed using SPSS 20.0 statistical analysis software. The Kolmogorov-Smirnov test will be used to assess the normality of the data. Percentage, mean, and standard deviation calculations will be used in the analysis of the findings obtained in the study; appropriate statistical analyzes will be performed to examine the relationship between the independent variables of the control and experimental groups and exercise performance, body composition, and appetite status.

Conditions

Volleyball Players

Keywords

omega-3; volleyball; Woman; Single blind

Outcome Measures

Primary Outcomes (3)

• Evaluation of the effect of omega-3 supplementation given to female volleyball players for 8 weeks on exercise performance.

  Muscle soreness assessment and muscle endurance test will be performed for exercise performance. Muscle Soreness Assessment is represented by a scale between 0 (no pain) and 10 (extreme pain) while athletes squat against a wall at a 90° angle with their thighs parallel to the ground. Athletes will make a number according to the pain they feel. * 0: No Pain * 1-3: Mild pain * 4-6: Moderate pain * 7-9: Severe pain * 10: Worst pain Muscle Endurance Test; In order to evaluate the endurance of the abdominal muscles, the maximum number of sit-up repetitions of the participant in one minute is determined and the number of repetitions made during this period indicates the endurance level of the abdominal muscles.

  It lasted 8 weeks. January 10, 2025 - March 17, 2025

• Evaluation of the effects of omega-3 supplementation given to female volleyball players for 8 weeks on body composition.

  Height, weight, neck, waist, hip circumference measurements will be used to determine body composition. Weight in kilograms and height in meters will be used to calculate BMI. It will be determined whether the applied omega-3 supplement creates any change in the athletes' BMI and fat value (thanks to circumference measurements).

  It lasted 8 weeks. January 10, 2025 - March 17, 2025

• Evaluation of the effect of omega-3 supplementation on appetite status in female volleyball players given for 8 weeks.

  The athletes' appetite status was assessed using the Simplified Nutrition Appetite Questionnaire. The Simplified Nutrition Appetite Questionnaire consists of four questions. Each question is given a value between one and five points according to its answer. The total score is calculated by adding the points corresponding to the participants' answers, and an increase in the score indicates an increased appetite.

  It lasted 8 weeks. January 10, 2025 - March 17, 2025

Study Arms (2)

Omega-3 supplement

EXPERIMENTAL

Participants in the experimental group were given four capsules of omega-3 fatty acids with breakfast every day for 8 weeks.

Dietary Supplement: omega-3 supplements in female athletes

placebo

PLACEBO COMPARATOR

Participants in the control group were given a placebo containing maltodextrin with breakfast every day for 8 weeks.

Dietary Supplement: Placebo Group

Interventions

omega-3 supplements in female athletes DIETARY_SUPPLEMENT

Participants in the experimental group were given four capsules of omega-3 fatty acids with breakfast every day for 8 weeks. Each capsule contains 150 mg of omega-3 fatty acids and has a ratio of 60% EPA and 40% DHA. At the beginning of the study, 24-hour food consumption records were taken 8 times, once a week and at the end. In addition, anthropometric measurements, simplified food appetite questionnaire, muscle pain assessment and muscle endurance test were performed at the beginning and end of the study.

Omega-3 supplement

Placebo Group DIETARY_SUPPLEMENT

Participants in the control group were given a placebo containing maltodextrin with breakfast every day for 8 weeks. Each capsule contains 250 mg maltodextrin. At the beginning of the study, 24-hour food consumption records were taken 8 times, once a week and at the end of the study. Additionally, anthropometric measurements, a simplified food appetite questionnaire, muscle pain assessment and muscle endurance test were performed at the beginning and end of the study.

placebo

Eligibility Criteria

• Age: 18 Years - 45 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being over 18 years of age
• Participants should not have a chronic disease or regular medication use
• Not have used omega-3 or similar fatty acid supplements in the last 6 months

You may not qualify if:

• Having a diet model that is applied regularly
• Having undergone any surgical intervention
• Being in pregnancy or lactation

Sponsors & Collaborators

• Betul Uner: lead

Study Sites (1)

Muğla Sıtkı Koçman University/Muğla Training and Research Hospital Neurology Polyclinic

Muğla, Mentese, 48000, Turkey (Türkiye)

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: SUPPORTIVE CARE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Lecturer, MSc

Model Details: This study was conducted with an experimental, single-blind, randomized, and placebo-controlled design to examine the effects of omega-3 fatty acid supplementation on exercise performance, body composition, and appetite status in female volleyball athletes.

Study Record Dates

• First Submitted: June 18, 2025
• First Posted: July 8, 2025
• Study Start: January 10, 2025
• Primary Completion: March 17, 2025
• Study Completion: March 17, 2025
• Last Updated: July 8, 2025

Record last verified: 2025-06

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, CSR

Locations

TU (1)