Effect of caffeine on QTc

Compare the effects of caffeine on QTc interval and blood pressure during isometric and isotonic Contractions in Male athletes and non-athletes

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20171216037906N1

Enrollment

Registered

2018-02-19

Start date

2017-12-26

Completion date

Unknown

Last updated

2018-03-26

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

Conditions

QTc interval and blood pressure. ????? ???? ?????? ?????? ????.

Interventions

Intervention group: We had two equal athletes and non-athletes who consumed caffeine supplementation (up to 200 mg tablets in Canada) after the pre-test..

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Do not consume caffeine supplement, do not consume energy supplementation and do not consume caffeinated foods such as chocolate and coffeeNot Not having a history of cardiovascular disease

Exclusion criteria

Exclusion criteria: Having cardiovascular disease, diabetes and high blood pressure Use of energy supplements

Design outcomes

Primary

Measure	Time frame
QTc interval. Timepoint: Baseline : rest and isotonic and isometric. Method of measurement: ECG.	—

Secondary

Measure	Time frame
Blood pressure. Timepoint: Pre and Post Supplementation. Method of measurement: By Pressure gauge.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactNematallh Nejatmand

Shahid Rajaee Univercity

N.nejatmand@srttu.edu+98 21 5662 4142

Outcome results

None listed

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