healthy athletes.
Conditions
Interventions
Intervention 1: Intervention group: concentrated nitrate-rich beetroot juice, 2 x 70 ml (140 ml) , twice a day( one in the morning, one in the evening) for 6 days. Intervention 2: Placebo group: black
Placebo
Intervention group: concentrated nitrate-rich beetroot juice, 2 x 70 ml (140 ml) , twice a day( one in the morning, one in the evening) for 6 days
Placebo group: black currant juice, 2 x 70 ml (140 ml), twice a day (one in the morning, one in the evening) for 6 days
Sponsors
International Campus, Tehran University of Medical Sciences
Eligibility
Sex/Gender
Male
Age
18 Years to 32 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria: -the tendency to cooperation -18 to 32 years old taekwondo athletes - having necessary readiness for performing exercise tests using the Physical Activity Readiness Questionnaire Exclusion criteria: -will be unable to continue cooperation -the emergence of lower extremity injuries -making a change in the diet (or consumption of nitrate- rich foods) using the 24-hour Dietary Recall method -the consumption of any kind of supplements during the study -not consuming of concentrated nitrate-rich beetroot juice (in the two cases: 1-more than once during the study 2- on day 6 of the study) -will be unable to execute the knee extensor test using proper form
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak torque. Timepoint: before and after intervention. Method of measurement: Biodex isokinetic dynamometer system.;Peak power. Timepoint: before and after intervention. Method of measurement: Biodex isokinetic dynamometer system.;Total work. Timepoint: before and after intervention. Method of measurement: Biodex isokinetic dynamometer system.;Stability index. Timepoint: before and after intervention. Method of measurement: Biodex balance system. | — |
Secondary
| Measure | Time frame |
|---|---|
| Heart rate. Timepoint: before and after intervention. Method of measurement: Heart rate monitor.;Systolic and Diastolic blood pressure. Timepoint: before and after intervention. Method of measurement: Blood pressure device.;MAP. Timepoint: before and after intervention. Method of measurement: calculating. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactSamaneh Khosravi
Tehran University of Medical Sciences
Outcome results
None listed