The purpose of this study is to observe the effects of exogenous ketone supplements during shorter bouts of exercise testing on twenty collegiate endurance trained athletes (18-25 years of age).
Some believe very high fat diets (\>70% energy) can enhance exercise performance by providing additional fuel (ketones) for energy metabolism, at least for very prolonged exercise (\>3-4h). Regardless, this diet is difficult to maintain so it has been suggested that ingesting ketone salts along with a normal carbohydrate (CHO) diet might be more practical. The purpose of this study is to observe the effects of ketone salt ingestion on shorter term (up to \~15 min) exercise performance. Endurance trained (≥2 year training experience; ≥7 h/week) collegiate athletes (n=20) of similar body mass (♀; 55-60kg; ♂; 75-80kg) and age 18-25y) consuming 5-6g CHO•kg-1•d-1) will be tested before and after 1 and 7d of ketone salt (Prüvit, Carrollton TX, US) supplementation (0.6-0.8g•kg-1•d-1). Participants will perform two exercise performance tests (a 10km cycle time trial and a 30s Wingate cycle test on separate days) before and after supplementation. Blood samples (glucose, lactic acid, and ketone concentration) will be taken at: baseline and following each performance test. It is hypothesized that ketone salt supplementation will increase blood ketone concentration but will not enhance these exercise performance tests.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
20
10 km Cycling time trial test will be conducted to examine the effects of the Exogenous Ketone Salts on time
30s all-out test to measure peak power output
Supplement containing exogenous ketone salts
Exercise Nutrition Laboratory, Western University
London, Ontario, Canada
10 km Time trial
10km time trial where participants will be measured on time to completion
Time frame: 15-20 Minutes
30s Wingate
30s Wingate all out test where participants will be measured on their peak power output
Time frame: 30 seconds
Blood Ketones
Blood Ketones will be measured using a ketone meter
Time frame: 1-2 hours
Blood Glucose
Blood Glucose will be measured using a Blood glucose meter
Time frame: 1-2 hours
Blood Lactate
Blood Lactate will be measured using a lactate meter
Time frame: 1-2 hours
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
A baseline 10 km Cycling time trial test will be conducted
A baseline 30s all-out test to measure peak power output