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Effects of a Pre-Workout Dietary Supplement on Training Adaptations

Effects of a Pre-Workout Dietary Supplement on Training Adaptations in Resistance Trained Athletes

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02999581
Acronym
NB2
Enrollment
122
Registered
2016-12-21
Start date
2014-03-31
Completion date
2014-12-31
Last updated
2016-12-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dietary Modification

Brief summary

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

Detailed description

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.

Interventions

DIETARY_SUPPLEMENTC4 Extreme, C4 Extreme (without Advantra Z)

Sponsors

Nutrabolt
CollaboratorINDUSTRY
Texas A&M University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
MALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

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);

Design outcomes

Primary

MeasureTime frame
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)Eight weeks
Examine the effects of C4 supplementation during resistance training by assessing 1 RM (repetition maximum) strengthEight weeks
Examine the effects of C4 supplementation during resistance training by assessing anaerobic sprint capacityEight weeks
Examine the effects of C4 supplementation during resistance training by assessing muscle creatine levelsEight weeks
Examine the effects of C4 supplementation during resistance training by assessing muscle carnosine levelsEight weeks
Examine the effects of C4 supplementation during resistance training by assessing body waterEight weeks
Examine the effects of C4 supplementation during resistance training by assessing body compositionEight weeks
Examine the effects of C4 supplementation during resistance training by assessing macronutrient intakeEight weeks

Secondary

MeasureTime frame
Measure standard clinical chemistry panels in the blood to evaluate safetyEight weeks
Record side effects to evaluate safetyEight weeks
Measure heart rate to evaluate safetyEight weeks
Measure blood pressure to evaluate safetyEight weeks

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026