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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Effekter av energidryck på korrigerad QT-tid, hjärtfrekvens och blodtryck på kvinnor : En placebostudie / Effects of energy drink on corrected QT interval, heart rate and blood pressure in women. - : A placebo study.

Memedovska, Zamira Edaet, Hsino, Bayan January 2023 (has links)
Syftet med denna placebostudie är att studera energidryckens effekter på QTc-tiden, hjärtfrekvens (HR), systoliskt blodtryck (SBP) och diastoliskt blodtryck (DBP) efter konsumtion av 2 mg koffein per kilogram kroppsvikt. Dessutom belysa om skillnader finns beroende på koffeinkonsumtions vanor. Variabler registrerades av ett 12-avlednings-elektrokardiogram och en automatiserad blodtrycksanordning. Undersökningen genomfördes före intag av sockerfri (ED) och 30–40 minuter efter ED konsumtion. I resultatet inkluderades 58 deltagare i åldrarna 18–30 år. En signifikant skillnad mellan QTc, HR, SBP och DBP identifierades före och efter konsumtion av ED, genom ett parvis t-test. Ingen signifikant skillnad identifierades på HR (P=0,2), SBP (P=0,4) och DBP (P=o,4) före och efter konsumtion av placebodryck. En signifikant skillnad på QTc (P=0,03) före och efter konsumtion av placebo dryck påvisades. Ingen signifikant skillnad påvisades mellan variablerna i relation till dryckerna, genom ett oberoende t-test. Ingen signifikant skillnad identifierades mellan variablerna, i relation till sällan konsumenter respektive ofta konsumenter, genom ett oberoende t-test. Ingen signifikant skillnad påvisades mellan ED respektive placebo dryck per konsumtions grupp, utfört med två-vägs ANOVA. / Effects of energy drink on corrected QT interval, heart rate and blood pressure in womena placebo study The purpose of this placebo study is to study the effects of the energy drink on the QTc time, heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) after consumption of 2 mg of caffeine per kilogram of body weight. Additionally, highlight whether differences exist depending on caffeine consumption habits. Variables were recorded by a 12-lead-electrocardiogram and an automated blood pressure device. The survey was conducted before consuming a sugar-free energy drink (ED) and 30–40 minutes after ED consumption. The results included 58 participants aged 18-30 years. A significant difference between QTc, HR, SBP, and DBP was identified before and after consumption of ED, by a paired t-test. No significant difference was identified in HR (P=0.2), SBP (P=0.4), and DBP (P=0.4) before and after consumption of the placebo drink. A significant difference in QTc (P=0.03) before and after consumption of the placebo drink was demonstrated. No significant difference was detected between the variables about the drinks, through an independent t-test. No significant difference was identified between the variables, to infrequent and frequent consumers, using an independent t-test. No significant difference was detected between the ED and placebo drink per consumption group, performed with two-way ANOVA.

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