Condition 1: inflammation. Condition 2: muscle damage. - -
Conditions
Interventions
Intervention 1: Experimental group will receive supplement for 8 weeks (each week they should eat one 50000 IU cholecalciferol pearl).
After 8 weeks, players will participate in a simulated soccer ma
1 ´ 20 m at maximal running speed
4 s recovery
3 ´ 20 m at a running speed corresponding to 55% of individual VO2max
3 ´ 20 m at a running speed corresponding to 95% of individual VO2max
This pattern of exercise was repeated for each 15 min
block followed by a rest period of 3 min. Altogether, five15
min exercise bl
Treatment - Other
Experimental group will receive supplement for 8 weeks (each week they should eat one 50000 IU cholecalciferol pearl).
After 8 weeks, players will participate in a simulated soccer match at the test
3 ´ 20 m at a running speed corresponding to 95% of individual VO2max
This pattern of exercise was repeated for each 15 min
block followed
Control group will receive placebo for 8 weeks (each week they should eat one oral paraffin pearl). After 8 weeks, players will participate in a simulated soccer match at the test day. The protocol of
3 ´ 20 m at a running speed corresponding to 95% of individual VO2max
This pattern of exercise was repeated for each 15 min
block followed by a rest period of 3
Sponsors
Vice Chancellor for research of Urmia university of medical sciences
Eligibility
Sex/Gender
Male
Age
18 Years to 30 Years
Inclusion criteria
Inclusion criteria: inclusion criteria: soccer players who want to collaboration; players who regularly and consistently participate in soccer practices and matches(at least 4 month passed from starting this sport); age group between 18 to 30 years old; healthy players without any injury, cardio-metabolic disease, orthopedic and inflammatory disease; players without any acute liver disease, biliary, kidney and digestive disease; players with no history of kidney stone and hyperparathyroidism and osteomalasia or osteoporosis and sarcoidosis; lack of vitamin D supplementation at least for 8 weeks before the study beginning; lack of using drugs which can affect vitamin D level and its metabolism and function such as steroid and anti-epileptic drugs; lack of using certain drugs such as acetaminophen and anti-inflammatory drugs and b blockers and statins; lack of using exogenous hormones; lack of using amphotericin B,ampicilin, anticoagulant drugs, aspirin, clofibrate, cocaine, lithium, furosemide, morphine and some of anesthetic drugs; lack of using epinephrine and sodium bicarbonate; lack of using orlistate and cholestyramine and other cholesterol reducing drugs; people by BMI group 18.5 to 30; lack of smoking and alcohol consumption; people with 25(oh)D serum concentration less than 40 ng/mL. exclusion criteria: lack of collaboration for continuing the study; using certain drugs during the study; using foods rich in vitamin D specially canned fish, cod fish oil, Salmon and vit D fortified foods; using less than 80 % of supplements; traveling to place with sunny weather during the study; injury or disease occurrence during the study.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Interleukin 6. Timepoint: at the end of the trial: before the simulated test, immediately after the test, 2 and 24 hours after the test. Method of measurement: lab test.;CRP. Timepoint: at the end of the trial: before the simulated test, immediately after the test, 2 and 24 hours after the test. Method of measurement: lab test.;Lactate dehydrogenase. Timepoint: at the end of the trial: before the simulated test, immediately after the test, 2 and 24 hours after the test. Method of measurement: lab test.;Creatine phosphate kinase. Timepoint: at the end of the trial: before the simulated test, immediately after the test, 2 and 24 hours after the test. Method of measurement: lab test.;Serum 25-oh vitamin D3 level. Timepoint: before and after the trial: immidiately before the soccer simulated test. Method of measurement: lab test.;Body composition. Timepoint: Before intervention and 8 weeks after intervention. Method of measurement: Body composition analyzer (BIA). | — |
Secondary
| Measure | Time frame |
|---|---|
| Rating of Perceived Exertion. Timepoint: immidiately after each partof the simulated test. Method of measurement: questionnaire. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactSaeed Ghavamzadeh
Urmia university of medical sciences
Outcome results
None listed