Effects of sodium bicarbonate on high-intensity endurance performance in well-trained cyclists
Not Applicable
- Conditions
- healthy volunteer
- Registration Number
- DRKS00006198
- Lead Sponsor
- niversität des Saarlandes, Institut für Sport- und Präventivmedizin
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 21
Inclusion Criteria
maximal performance 5.0 Watt/kg (male) und 4.5 Watt/kg (female) during an incremental cycle test (increment 50 Watt/3min)
Exclusion Criteria
use of medicines
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Time to exhaustion, a measure of performance during prolonged, high-intensity exercise to exhaustion, was the main outcome measure in this study. Time was stopped and documented when subjects signalized maximum exhaustion or were unable to maintain a cadence of 50 rpm (revolutions per minute) for more than 10 s.
- Secondary Outcome Measures
Name Time Method Parameters related to mechanisms for potential improvements in performance (blood lactate, pH, bicarbonate concentration), as well as parameters of maximum performance (maximal workload, highest oxygen consumption) in a stepwise incremental exercise test on a cycle ergometer (entrance test), were selected as secondary outcome measures. Blood lactate (enzymatic-amperometric method) and blood gas parameters (blood gas analyzer) were analyzed 2 hours before exercise, every 5 min during exercise and at exhaustion.