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ID
Source
Health condition
dietary nitrate, beet root juice, exercise performance, counter movement jump, isokinetic dynamometer
Sponsors and support
Intervention
Outcome measures
Primary outcome
-Counter movement jump performance
-Maximal isometric voluntary contraction
-Maximal isokinetic voluntary contraction
-Isokinetic muscle endurance performance
Secondary outcome
-Plasma nitrate and nitrite
Study objective
We hypothesize that dietary nitrate supplementation improves muscle strength and muscle endurance performance.
Study design
-Exercise testing will be performed after a 6-day supplementation period with beet root juice or placebo.
Intervention
Dietary nitrate will be ingested as beetroot juice. The intervention comprises a 6-day supplementation period with either beetroot juice (140 mL daily) or nitrate-depleted beetroot juice (placebo; 140 mL daily). After ingestion of the last bolus of beetroot or placebo juice, counter movement jump performance, maximal strength and muscular endurance will be assessed. Both experimental periods will be separated by a wash-out period of at least 1 week.
Jan-Willem van Dijk
Heyendaalse weg 141
Nijmegen 6525 AJ
The Netherlands
+31 655227849
janwillem.vandijk@han.nl
Jan-Willem van Dijk
Heyendaalse weg 141
Nijmegen 6525 AJ
The Netherlands
+31 655227849
janwillem.vandijk@han.nl
Inclusion criteria
-Healthy male
-Recreationally active (0.5 – 8 h of sport activities per week on a non-competitive base)
-18-40 years
Exclusion criteria
-Obesity (BMI >30 kg/m2)
-Injury preventing maximal exercise performance
-Smoking
-Current use of dietary nitrate supplements
-Medication interfering with nitric oxide metabolism, or medication known to affect physical or mental performance
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| NTR-new | NL6009 |
| NTR-old | NTR6507 |
| Other | : EACO 56.02/17 |