Autonomic Nervous System Clinical Trial
Official title:
Impact of Caffeine Intake Before Exercise on the Neural Regulation of the Cardiovascular System in Physically Active Adults
Verified date | April 2019 |
Source | University of Pernambuco |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The objective of this study was to evaluate the variability of the heart rate of exercise physicists with and without caffeine intake. Practitioners of resisted physical exercise, specifically bodybuilding, who are young adults between the ages of 18 and 30 will participate in the study. To define the sample size, a sample calculation was performed based considering as variable the RMSSD index (square root of the square mean of the differences between the adjacent normal iRRs). The significant difference magnitude assumed was 12 ms, considering a standard deviation of 16.2 ms, with alpha risk of 5% and beta of 80%. A minimum of 14 subjects per group were required in the survey. A total of 32 subjects will participate in the research, being these divided and allocated in different groups. Sampling will be of the intentional kind.
Status | Completed |
Enrollment | 30 |
Est. completion date | March 20, 2019 |
Est. primary completion date | March 19, 2019 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years to 30 Years |
Eligibility |
Inclusion Criteria: - Male - 18 to 30 years of age - Body Mass Index (BMI) within the range of Eutrophy (18.5 to 24.9kg / m²) - Experience with resistance training, uninterrupted for at least 3 months and weekly frequency of 3 sessions or more - Do not use any medication that may interfere with cardiac autonomic modulation - Do have no skeletal muscle damage. Exclusion Criteria: - Smoking patients - As well as individuals who have already used anabolic steroids - Cardiorespiratory diseases - Cardiometabolic diseases - Neurological disorders - Other known compromises that prevent the subject from performing the procedures. |
Country | Name | City | State |
---|---|---|---|
Brazil | Cicero Jonas Rodrigues Benjamim | Juazeiro do Norte | Ceará |
Lead Sponsor | Collaborator |
---|---|
University of Pernambuco |
Brazil,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Caffeine effects on heart rate variability (based on frequency, time domain and Chaos) | up to 1 year | ||
Primary | Blood pressure (mmHg) | Caffeine effects blood pressure recovery following strength exercise | up to 1 year | |
Primary | Heart rate (beats per minute) | Caffeine effects heart rate recovery following strength exercise | up to 1 year |
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