effect of vitamin D on athletes

Effect of vitamin D supplementation on inflammatory markers, muscle damage indices, performance and body composition in athletes

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20171213037856N1

Enrollment

100

Registered

2018-06-27

Start date

2018-06-21

Completion date

Unknown

Last updated

2018-07-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vitamin D deficiency.

Interventions

Intervention 1: In this study, the intervention group received a vitamin D supplemented per week for 8 weeks, including 50,000 international units of vitamin D3 (Dana pharmaceutical company, Tabriz).

Eligibility

Sex/Gender

Male

Age

20 Years to 30 Years

Inclusion criteria

Inclusion criteria: Participants should exercise 30 minute at least thrice weekly for one year ago

Exclusion criteria

Exclusion criteria: the existence of pathologies diseases Participants whose smoke take anti-inflammatory medication (such as aspirin, ibuprofen and acetaminophen) Consumption nutritional supplements

Design outcomes

Primary

Measure	Time frame
Alanine aminotransferase serum level. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic photometric method (IFCC) with a sensitivity of 2 U / L and a coefficient of variation of 14% will be determined.;Aspartate aminotransferase serum level. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic photometric method (IFCC) with a sensitivity of 2 U / L and a coefficient of variation of 14% will be determined.	—

Measure

Time frame

Alanine aminotransferase serum level. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic photometric method (IFCC) with a sensitivity of 2 U / L and a coefficient of variation of 14% will be determined.;Aspartate aminotransferase serum level. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic photometric method (IFCC) with a sensitivity of 2 U / L and a coefficient of variation of 14% will be determined.

—

Secondary

Measure	Time frame
Serum level of vitamin D. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: will be measured by direct competitive immune assay.;Serum level of lactate dehydrogenase. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic chlorometric method with U / L 5 sensitivity and a change coefficient of 2.1% will be determined.;Exercise heart rate. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: Measurement are taken from the radial artery with forefinger and the middle finger of the right hand placed horizontally.	—

Measure

Time frame

Serum level of vitamin D. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: will be measured by direct competitive immune assay.;Serum level of lactate dehydrogenase. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: By enzymatic chlorometric method with U / L 5 sensitivity and a change coefficient of 2.1% will be determined.;Exercise heart rate. Timepoint: At the beginning of the study and after 8 weeks of intervention. Method of measurement: Measurement are taken from the radial artery with forefinger and the middle finger of the right hand placed horizontally.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactHamid Zolfaghari

Bagheiat-allah University of Medical Sciences

h.z.7025@gmail.com+98 21 8248 3131

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026