NCT03665948

Effect of Ketogenic and Carbohydrate Diet in Crossfit

The Effect of Ketogenic and Carbohydrate, Low-Glycemic Index Diet on Physical and Specific Performance Capacity, and Exercise Metabolism in Crossfit- Trained Athletes

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (estimated)
• Sponsor: Poznan University of Physical Education · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

The purpose of the presented study was to assess the influence of Ketogenic (KD) and a carbohydrate diet with a low glycemic index (CHO-LGI) of a 4-week diet on physical and specific performance capacity, exercise metabolism, as well as concentrations of the selected biochemical blood markers in Crossfit- trained athletes, in a randomised and parallel trial.

Detailed description

The impact of various dietary strategies, including the alternative ketogenic diet - recently popular among strength athletes, has not been unequivocally assessed in the high-intensity sport disciplines that Crossfit belongs to. There is also a lack of data in these disciplines about the potential longer adaptation of athletes to the very low carbohydrate intake resulting from the ketogenic diet and its impact in high-intensity Crossfit training. Therefore, the purpose of this study was the assessment of the influence of a 4-week KD and a CHO-LGI diet on physical and specific performance capacity, exercise metabolism, as well as concentrations of the selected biochemical blood markers in Crossfit- trained athletes, in a randomised and parallel trial.

Conditions

• Nutrition
• Ketogenic Dieting
• Low Glycemic Index Diet
• Sport
• Crossfit

Interventions

Type	Name	Description
OTHER	Dietary Intervention - Ketogenic Diet (KD)	The experimental procedure for each randomly assigned participant included a 4-week of KD diet.
OTHER	Dietary Intervention - Low-Glycemic Index Diet (CHO-LGI)	The experimental procedure for each randomly assigned participant included a 4-week of CHO-LGI diet.

Timeline

• Start date: 2017-01-09
• Primary completion: 2024-11-01
• Completion: 2024-12-20
• First posted: 2018-09-11
• Last updated: 2024-05-16

Locations

1 site across 1 country: Poland