Effect of Sodium Bicarbonate on Prolonged Running Performance.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00011284

Enrollment

Registered

2016-11-22

Start date

2011-09-14

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

healthy participants

Interventions

Group 1: The study used a double-blind randomized crossover design: After the ingestion of sodium bicarbonate (0.3 g•kg-1) diluted in 0.7 l of water two exhaustive graded exercise and two constant loa

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Inclusion criteria were full legal age (18 yrs.) and a maximum running speed of at least 4.5 m/s and 4.0 m/s for women in both graded exercise tests.

Exclusion criteria

Exclusion criteria: Cardiovascular diseases, medication intake or potassium disturbances.

Design outcomes

Primary

Measure	Time frame
Time to exhaustion in the constant load test was defined as the main outcome measure. The tests were finished when the participants could no longer maintain the speed.	—

Secondary

Measure	Time frame
Secondary outcome measures included parameters of maximal performance (maximum running speed and peak oxygen uptake ) as well as parameters most likely related to a potential performance enhancing effect of sodium bicarbonate and muscle fatigue (pH, sodium bicarbonate concentration, base excess and blood lactate).	—

Countries

Germany

Contacts

Public ContactTanja Freis

Institut für Sport- und Präventivmedizin der Universität des Saarlandes

tanja.freis@freenet.de0681 302 70400

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 26, 2026