healthy volunteer
Conditions
Interventions
Group 1: The study aims to examine the influence of sodium bicarbonate on performance during exhaustive, high-intensity endurance exercise. 2 hours to 1 hour prior to endurance exercise to exhaustion
Sponsors
Universität des Saarlandes, Institut für Sport- und Präventivmedizin
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
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
Exclusion criteria: use of medicines
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 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
| Measure | Time frame |
|---|---|
| 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. | — |
Countries
Germany
Contacts
Public ContactFlorian Egger
Institut für Sport- und Präventivmedizin der Universität des Saarlandes
Outcome results
None listed