healthy subjects
Conditions
Interventions
Group 1: The subjects perform two 60-seconds sprint-tests within two weeks under normoxic conditions. In a crossover design subjects perform sprinting either after three days of alkalizing diet or thr
Sponsors
Ruhr-Universität Bochum, Institut für Sportwissenschaft, Lehrstuhl für Sportmedizin und Sporternährung
Eligibility
Sex/Gender
All
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: - moderately active lifestyle - attested full physical fitness
Exclusion criteria
Exclusion criteria: - cardial or pulmonary desease - altitude sojourn above 2000 m within the last two weeks before experimental trial starts - acute infects - chronic medication
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The 60-second sprint-test is an all-out test and is performed in a stationary setting. Participants wear a belt around their waist, which is attached to a static rope with an included force transducer. The rope is fixed at a strong anchor point. To assess anaerobic performance, subjects sprint against the resistance at maximal speed (maximal step frequency). Blood gas analyses are carried out using capillary blood samples (100µl) before entering the hypoxic chamber and before and after the sprint-test. In order to assess blood lactate values, capillary blood samples are collected pre-exercise and 2, 5, 7 and 10 minutes after sprinting. Additionally, heart rate is controlled before and directly after the sprint-test. | — |
Secondary
| Measure | Time frame |
|---|---|
| Nutrition protocols (the "Freiburger Ernaehrungsprotokoll" in German language is used) are completed for each day of the diet. Urinary pH values is determined daily during the experimental trial in spontaneous early morning urine samples. | — |
Countries
Germany
Contacts
Public ContactMirjam Limmer
Deutsche Sporthochschule Köln, Institut für Natursport und Ökologie
Outcome results
None listed