The purpose of this study is to examine the acute effects of a pre-workout dietary supplement on energy metabolism, cardiovascular hemodynamics, blood metabolites and mental focus.

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 potential ergogenic value of acute ingestion of a pre-workout dietary supplement prior to exercise.

Inclusion Criteria:

• you are an apparently healthy and recreationally active man or woman 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, hypo-tension, 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 are pregnant or a lactating female or plan to become pregnant with the next month;
• you have a history of smoking;
• you drink excessively (i.e., 12 drinks per week or more);