Effect of Low Doses of Vitamin C on Salivary Cortisol , Heart Rate , Blood Pressure During Group Presentation
Status:
Completed
Trial end date:
2019-04-20
Target enrollment:
Participant gender:
Summary
Vitamin C (ascorbic acid) is a well-known antioxidant that is involved in anxiety, stress,
depression, fatigue and mood state in humans . The purpose of this study is to investigate
the effect of low doses of vitamin C on decreasing the level of public speaking stress in
term of salivary cortisol , blood pressure (systolic and diastolic) and heart rate . A
purposive sample of (90) were included in this randomized placeboled trial study (60 students
were given 500 mg of vitamin c per day for one week a group presentation while 30 other
students were given placebo for one week before a group presentation) . Salivary cortisol was
measured by means of commercial immunoenzymatic kits . Blood pressure (systolic and
diastolic) and heart rate were measured immediately before and after presentation .