Effects of a Pre-Workout Dietary Supplement on Training Adaptations

Texas A&M University122 enrolled

Overview

The purpose of this study is to examine the effects of a pre-workout dietary supplement during resistance training on training adaptations.

A number of nutritional strategies have been developed to optimize nutrient delivery prior to exercise. This includes providing carbohydrate and a number of ergogenic nutrients prior to, during and/or following exercise. As a result, a number of pre-workout supplements have been developed to increase energy availability, promote vasodilation and/or positively affect exercise capacity. The purpose of this study is to investigate the effects of ingesting a pre-workout dietary supplement during resistance training on training adaptations.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

DOUBLE

Enrollment

122

Conditions

Dietary Modification

Interventions

C4 Extreme, C4 Extreme (without Advantra Z)DIETARY_SUPPLEMENT

Eligibility

Sex: MALEMin age: 18 YearsMax age: 40 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * you are an apparently healthy and recreationally active male between the ages of 18 and 40. * you will need to have at least six months immediate prior history of resistance training on the bench press and leg press or squat. Exclusion Criteria: * you have a history of treatment for metabolic disease (i.e., diabetes), hypertension, hypotension, thyroid disease, arrhythmia and/or cardiovascular disease; * you are currently using prescription medications; * you have an intolerance to caffeine and/or other natural stimulants; * you have a history of smoking; * you drink excessively (i.e., 12 drinks per week or more);

Outcomes

Primary Outcomes

Examine the effects of C4 supplementation during resistance training by assessing body water

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing body composition

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing macronutrient intake

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing 1 RM (repetition maximum) strength

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing anaerobic sprint capacity

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing muscle creatine levels

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing muscle carnosine levels

Time frame: Eight weeks

Examine the effects of C4 supplementation during resistance training by assessing cognitive function (i.e., Stroop Color and Word Test, Word Recall Test and Readiness to perform VAS)

Time frame: Eight weeks

Secondary Outcomes

Measure standard clinical chemistry panels in the blood to evaluate safety

Time frame: Eight weeks

Record side effects to evaluate safety

Data from ClinicalTrials.gov

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