NCT04712578

Influence of Caffeinated and Non-caffeinated Pre-workout Supplements on Resistance Exercise Performance

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (actual)
• Sponsor: Texas Tech University · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

This study is a randomized, double-blind, placebo-controlled crossover trial examining the effects of caffeinated and non-caffeinated pre-workout supplements on resistance exercise performance. Resistance-trained adults will be randomly assigned to complete three study conditions (caffeinated pre-workout, non-caffeinated pre-workout, and placebo) in one of the six possible condition orders. During each condition, participants will report to the laboratory for ingestion of the assigned beverage and subsequent muscular performance testing. Major performance outcomes will be force production variables from a mechanized squat device and maximal strength and muscular endurance on the bench press and leg press exercises.

Conditions

• Resistance Training
• Caffeine
• Dietary Supplements

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Caffeinated pre-workout supplement	The intervention will consist of consuming a standardized meal followed by one serving of the commercially available Pulse caffeinated pre-workout supplement (Legion Athletics, Inc.).
DIETARY_SUPPLEMENT	Non-caffeinated pre-workout supplement	The intervention will consist of consuming a standardized meal followed by one serving of the commercially available Pulse non-caffeinated pre-workout supplement (Legion Athletics, Inc.).
DIETARY_SUPPLEMENT	Placebo	The intervention will consist of consuming a standardized meal followed by a placebo beverage.

Timeline

• Start date: 2021-02-23
• Primary completion: 2021-05-11
• Completion: 2021-05-11
• First posted: 2021-01-15
• Last updated: 2021-06-03

Locations

1 site across 1 country: United States