The Effect of Dietary Nitrate Supplementation on Linear Running Sprint Performance, Agility and Vertical Jump Performance in a Rested and Fatigued State

Exercise Performance Clinical Trial

Official title:

The Effect of Dietary Nitrate Supplementation on Linear Running Sprint Performance, Agility and Vertical Jump Performance in a Rested and Fatigued State

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03565523
• Other study ID #: PEP-1607
• Status: Completed
• Phase: N/A
• Start date: September 1, 2016
• Est. completion date: April 30, 2017

Study information

• Verified date: June 2018
• Source: PepsiCo Global R&D
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Dietary nitrate (NO3-) supplementation has been shown to improve skeletal muscle contractility and fatigue resistance, particularly in fast-twitch (type II) muscle fibers. Furthermore, NO3- supplementation has been shown to speed reaction time. Taken together, these findings suggest that NO3- ingestion may be ergogenic during all-out sprint running and reactive agility tasks. Moreover, increasing muscle force production at high contraction speeds would be expected to translate into improved muscle power and, subsequently, improved performance in very explosive forms of exercise, such as vertical jumping. Therefore, the purpose of this investigation is to assess the effect of short term (5 days) NO3- supplementation on linear running sprint performance, reactive agility and vertical jump performance in a rested and fatigued state.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 32
• Est. completion date: April 30, 2017
• Est. primary completion date: March 31, 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 45 Years

Eligibility

Inclusion Criteria:

1. Male and female participants in self-reported good general health as assessed by the standard procedures described below and specifically meeting normal blood pressure range (systolic: 100-135, diastolic: 60-90) and body mass index (BMI) range (16.0-29.9)

2. Range of 18-45 years of age

3. Participants must participate in an intermittent exercise based sport (e.g. soccer, rugby, hockey), at a competitive level (i.e. competes in officiated matches/games).

4. Understanding of the procedures to be undertaken as part of the study

5. Willingness to participate in exercise testing and follow supplementation guidelines and other instructions provided by the experimenter

6. Informed, voluntary, written consent to participate in the study

Exclusion Criteria:

1. Known pulmonary, cardiovascular or metabolic disease

2. Food allergies including phenylketonurea (PKU)

3. Current regular use of any dietary supplement (excluding macronutrient based supplements) or previous use of any dietary supplement in the past 6 months that is known to have a lasting effect.

4. Blood donation within 3 months prior to the start of the study

5. Substance abuse within 2 years of the start of the study

6. Smoking

7. Any prescription and non-prescription medication which may impact saliva production (antidepressants, diuretics, analgesics, antihistamines, anti-hyper/hypo-tensives, anti-anxiety, appetite suppressants).

8. Current or previous use of phosphodiesterase 5 (PDE5) inhibitors.

9. Participation in another clinical trial within past 4 weeks.

Related Conditions & MeSH terms

• Exercise Performance

Intervention

Other:
• Beetroot
Containing 385 mg nitrate
• Placebo beverage
<0.1 mmol nitrate in sucrose solution with beet coloring

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
PepsiCo Global R&D

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Linear running sprint time	Linear running sprint in a rested and fatigued state	5 days