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Ketone Supplementation, Glycogen Replenishment and Time Trial Performance Following Glycogen Lowering Exercise

NCT04004676 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2019-10-02

No results posted yet for this study

Summary

20 healthy trained males will volunteer to participate in this study. there will be 2 treatments: Carbohydrate- ketone supplementation and carbohydrate alone. The purpose of this study is to evaluate the effect of glucose-ketone supplementation on a 20 km cycling time trial with a 2-hour feeding during a 4-hour recovery period following glycogen depleting exercise.

Conditions

  • Ketonemia
  • Exercise Performance
  • Ketosis

Interventions

BEHAVIORAL

20 km time trial performance

20 km time trial cycling test will be conducted to measure the effect of different drinks on performance time

BEHAVIORAL

Glycogen lowering exercise

Glycogen will be lowered using a 10-min warm-up period at a workload of 50% max wattage power output (Wmax). Thereafter, participants will be instructed to cycle 2-min block periods at alternating workloads of 90% and 50% of Wmax, respectively. This will be continued until the participants are no longer able to complete the 2 min at 90% Wmax. That moment will be defined as the time at which the individual is unable to maintain cycling speed at 60 revolutions/min. At that moment the high-intensity block will be reduced to 80% Wmax. Again, athletes will cycle until they are unable to complete a 2-min block at 80% Wmax, after which the high-intensity block will be reduced to 70% Wmax. Finally, participants will be allowed to stop when pedalling speed could not be maintained at 70% Wmax.

Sponsors & Collaborators

  • Western University, Canada

    lead OTHER

Principal Investigators

  • Peter Lemon, PhD · Western Universiy

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-09-01
Primary Completion
2020-09-01
Completion
2020-09-01

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04004676 on ClinicalTrials.gov