Randomized, single-center, parallel, team-stratified, stratified experimental study to evaluate the efficacy of a high sports supplement in improving high-intensity intermittent exercise performance in professional female soccer players.
Subjects who meet the selection criteria will be randomly assigned to each of the study groups (investigational product or placebo, depending on the group to which they have been assigned). The product to be consumed will be Nitrates and Citrulline Malate. Participants will consume the product for 30 days. The intake should be done two hours before each training session and the same dose will be consumed. The women's soccer players will perform a stress test with gas analysis to measure performance, as well as a Wingate test without consumption of the products. Five days later, the players will perform the Yo-Yo IR1 test in the field and will repeat the same tests performed at the beginning of the test after product consumption.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
QUADRUPLE
Enrollment
40
Female soccer players should consume the experimental product for 30 days to evaluate the efficacy of a sports supplement high in nitrates combined with citrulline malate in the improvement of performance in high-intensity intermittent exercise. high intensity
Fruit puree
Catholic University of Murcia
Murcia, Spain
Aerobic and anaerobic thresholds - VO2max
Measured with a gas analyzer
Time frame: Change in initial maximal oxygen consumption at 30 days
Fatigue in jumping
Measured with a contact platform
Time frame: Change in initial jump fatigue at 30 days
Anaerobic capacity
Measured with a Monark cycloergometer
Time frame: Change in baseline anaerobic capacity at 30 days
Microcapillary blood
This test provides biochemical variables (ABL90FLEX) with 70 ml of capillary blood.
Time frame: It will be measured on two different occasions. Day one and 30 days later.
Lactate
Lactate levels will be measured using the Lactate Pro
Time frame: It will be measured on two different occasions. One on the first day (without intake of product ) and 30 days later, the same measurements but after having consumed the product
Safety variables
It is a blood test that measures the presence of some enzymes, proteins and bilirubin in the blood, with the aim of determining if there is any alteration in the liver.
Time frame: It will be measured on two different occasions. Day one and 30 days later.
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