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Clinical Trials/NCT07569770
NCT07569770CompletedNot Applicable

Comparison of High and Low Protein Dose With Multi-ingredient Supplementation for Body Composition and Exercise Performance in Elite Rugby Players

University of Taipei1 site in 1 country20 target enrollmentStarted: November 30, 2023Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Completed
Enrollment
20
Locations
1
Primary Endpoint
Change in Muscle Mass

Study Overview

Brief Summary

The purpose of this 12-week study is to compare the effects of two different post-exercise nutritional supplements on the body composition and exercise performance of elite male university rugby players. Athletes often consume very high amounts of protein to build muscle and recover, but excessive protein intake might pose potential health risks.

Study Hypothesis:

The researchers hypothesize that a multi-ingredient supplement with a lower total protein content (about 20 grams) will yield comparable or even superior improvements in body composition and physical performance compared to a standard high-dose whey protein supplement (40 grams).

Study Design:

Twenty elite male college rugby players will be randomly divided into two equal groups. One group will receive the high-dose whey protein, while the other group will receive the lower-dose multi-ingredient supplement (which includes protein, leucine, creatine, red amaranth, and elderberry). Participants will consume their assigned supplement immediately after their training sessions, four times a week for 12 weeks.

Assessments:

Before and after the 12-week intervention, the researchers will measure the participants' body composition (muscle and fat mass), maximum muscle strength, power, agility, and aerobic endurance. The overall goal is to determine if athletes can achieve optimal performance and muscle growth with a lower, more efficient protein intake strategy.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
19 Years to 26 Years (Adult)
Sex
Male
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Elite rugby athletes in the university team
  • No consumption of performance-enhancing supplements (e.g., creatine, protein supplements, or anabolic-androgenic steroids) one month prior to the study
  • No current medication or major musculoskeletal injuries

Exclusion Criteria

  • Vegetarianism
  • Whey protein allergy
  • Body weight fluctuation of more than 10 kg in the past three months

Arms & Interventions

High Protein Group

Active Comparator

Intervention: Whey Protein Concentrate (Dietary Supplement)

Outcomes

Primary Outcomes

Change in Muscle Mass

Time Frame: Baseline and Week 12

Muscle mass is assessed using Dual-energy X-ray Absorptiometry (DXA). The change is evaluated by comparing the baseline values to the post-intervention values.

Secondary Outcomes

No secondary outcomes reported

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Chien-Wen Hou

Professor

University of Taipei

Study Sites (1)

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