Effects of Sustamine(TM) on Cycling Time Trial Performance

University of Texas at Austin14 enrolled

Overview

Acute supplementation of Sustamine(TM), a combination of two amino acids, will improve cycling performance and mental acuity in a dose-dependent response.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

TRIPLE

Enrollment

Conditions

Healthy

Interventions

Placebo BeverageDIETARY_SUPPLEMENT

1400 ml flavored, colored, artificially sweetened, non-caloric beverage divided into 6 servings provided prior to and during the 2.5 hr interval ride.

2.8 g Sustamine BeverageDIETARY_SUPPLEMENT

1400 ml flavored, colored, artificially sweetened, beverage containing 2.8 g Sustamine divided into 6 servings provided prior to and during the 2.5 hr interval ride.

19.6 g Sustamine BeverageDIETARY_SUPPLEMENT

1400 ml flavored, colored, artificially sweetened, beverage containing 19.6 g Sustamine divided into 6 servings provided prior to and during the 2.5 hr interval ride.

Eligibility

Sex: ALLMin age: 20 YearsMax age: 45 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Competitive cyclist or triathlete * Male (VO2max \>= 55 ml/kg/min) or Female (VO2max \>= 45 ml/kg/min) * Healthy * Blood pressure below 140/90 * Non-smoker Exclusion Criteria: * Anti-depressant medications * Inconsistent regular medications * Consumption performance-enhancing substances * Type I or Type II diabetes * Renal, hepatic or cardiac disease Current infectious disease

Locations (1)

The University of Texas at Austin

Austin, Texas, United States

Outcomes

Primary Outcomes

Improved Time Trial Performance

Participants will perform an interval ride on a cycling ergometer for 2.5 hr. Intervals will be at 50% or 75% of the participant's VO2max. The time trial will consist of 4 km up a constant grade.

Time frame: After 2.5 hr interval cycling

Secondary Outcomes

Improved Mental Function

Mental function will be assessed using a computer-based Stroop Test. Measurements will be collected before treatment, before exercise and after exercise.

Time frame: After time trial

Data from ClinicalTrials.gov

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