Caffeine and sugar: Effects on resting metabolism, heart rate and respiratory rate

Are you a healthy European man living in Auckland aged between 18 and 30 years?

Do you want to help answer questions about the effect of caffeine and sugar on human metabolism?

Do you want to find out if you metabolise caffeine quickly or slowly? (fast or slow phenotype)?

Please come to take part in this exciting PhD research project!

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Hello,

I’m a PhD student in nutrition within the Department of Sport and Recreation at AUT. I’m looking for 20 healthy European men (18 – 30 yrs) to participate in my PhD research project. The project is designed to investigate the interactive effect of caffeine and sugar on how carbohydrate and fat are metabolised and any effects on heart and respiratory rate variability. (Please find details in the attached participant information sheet.)

With the exponential and widespread use of caffeinated drinks the metabolic interactions of sugar and caffeine consumed together have brought increasing concerns to both individual and society health and need to be better understood. Previous studies at AUT found caffeine and sugar in combination may promote the formation of new fat from carbohydrate, and change the rhythm of the heart beat and breathing. This study is designed to investigate further the acute interactive effects of caffeine and sugar on fat and carbohydrates metabolism and heart and respiratory rate variability, as well as testing for potential differences from different physical activity level, caffeine metabolic phenotype, body lean mass and habitual caffeine intake levels.

To participate you will visit the metabolic research lab in AB113 at AUT Akoranga campus four times on four separate mornings after fasting overnight. Movies may be viewed during the measurements and morning tea will be provided at the end of each visit. There will be petrol vouchers to cover your travel cost too.

What is required from the participant?

no smoking, not suffering from heart disease, anaemia or any infection, diabetes and caffeine intolerance or allergy.

Four visits on four seperate mornings (total time approx. 13 hours). There will be petrol vouchers to cover your travel cost.

Trial Location

New Zealand - Auckland

Download additional information

Caffeine and sugar_Information Sheet_Jan2012.pdf

Groups

Group 1 - Condition specific
Age:	18 - 30
Gender:	Male
Ethnicity:	European
Criteria:	no smoking, not suffering from heart disease, anaemia or any infection, diabetes and caffeine intolerance or allergy.

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