The Effect of a Citrus Extract on Exercise Performance in Moderately Trained Athletes

Exercise Performance Clinical Trial

Official title:

Establishing the Effect of Long-term Citrus Extract Supplementation on Exercise-specific Performance in Moderately Trained Athletes

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03044444
• Other study ID #: HES_PER_002
• Status: Completed
• Phase: N/A
• Start date: April 13, 2017
• Est. completion date: April 6, 2018

Study information

• Verified date: July 2020
• Source: BioActor
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

In this study, the effect of citrus extract on exercise performance will be investigated. The study consists of three groups: one group will receive a high dose citrus extract, one group will receive a low dose citrus extract and the last group will receive a placebo. After four and eight weeks the effects on performance are measured through a Wingate cycling test. It is expected that exercise performance will increase in the citrus extract groups, compared to the placebo group.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 93
• Est. completion date: April 6, 2018
• Est. primary completion date: April 6, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 35 Years

Eligibility

Inclusion Criteria:

• healthy idividuals

• Participants are amateur or (semi-) professional athletes in resistance or interval sports (engage in >4 hours of intense physical activity per week).

Exclusion Criteria:

• Use of creatine supplements and/or anabolic steroids.

• Allergy to test product/placebo

• Allergy to citrus fruits

• BMI lower than 18 or higher than 30

• Recent muscle injury in less than one month before the start of the study.

• Cardiovascular complications

• Use of medication that may interfere with the study results

• Administration of investigational drugs or participation in any scientific intervention study which may interfere with this study (to be decided by the principle investigator), in the 180 days prior to the study.

• Abuse of products; alcohol (> 20 alcoholic units per week) and drugs.

Related Conditions & MeSH terms

• Exercise Performance

Intervention

Dietary Supplement:
• citrus extract
Participants will receive either a low or high dose citrus extract

Other:
• placebo
participants will receive 500mg of maltodextrin

Locations

Country	Name	City	State
Netherlands	High Performance Center	Sittard	Limburg

Sponsors (1)

Lead Sponsor	Collaborator
BioActor

Country where clinical trial is conducted

Netherlands, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	lactate	post-exercise blood lactate in mmol/L after triple Wingate cycle exercise test	8 weeks
Primary	peak force output Wingate	Peak force output in Watts during a high intensity repeated sprint cycling exercise	8 weeks
Secondary	jumping height	jumping height in cm measured during a vertical jump exercise	8 weeks
Secondary	peak force output Handgrip	Peak force output in Watts during a handgrip strength test	8 weeks
Secondary	force output Jump	force output in W measured during a vertical jump exercise	8 weeks
Secondary	anaerobic capacity	total amount of power (W) generated in the first 30 seconds of the the triple Wingate cycle test	8 weeks
Secondary	running time	running time in minutes and seconds measured over 1600m	8 weeks