Healthy
Conditions
Keywords
Exercise, Performance, Supplementation
Brief summary
The purpose of the study is to investigate the effect of combinations of creatine monohydrate, sodium bicarbonate and caffeine on exercise performance and fatigability.
Interventions
DIETARY_SUPPLEMENTSodium bicarbonate and caffeine
On experimental days subjects ingest a combination of sodium bicarbonate, caffeine and placebo.
Sponsors
Morten Hostrup, PhD
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy * VO2max of \>50 ml/min/kg for men and \>45 ml/min/kg for women * Performs endurance training \>3 times per week
Exclusion criteria
* Chronic disease deemed by the study responsible medical doctor to interfere with any part of the study * Smoking * Chronic use of prescription medicine deemed by the study responsible medical doctor to interfere with any part of the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Work performed (kJ/Watt) | Measured at each trial throughout the study, on average 4 weeks | Work performed during a 6 minute time trial |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Work performed (kJ/Watt) | Measured at each trial throughout the study, on average 4 weeks | Work performed during a 15 second sprint test |
| Muscle strength (Nm) | Measured at each trial throughout the study, on average 4 weeks | Maximal voluntary isometric contraction of m. quadriceps femoris |
Countries
Denmark
Outcome results
None listed