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2009 | 1 | 31-35
Tytuł artykułu

Effect of caffeine on metabolic and cardiovascular responses to submaximal exercise in lean and obese men

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Study aim: To compare the effects of caffeine on metabolic and cardiovascular responses to exercise in lean and obese subjects.Material and methods: In a double blind random design, 6 lean (BMI<20) and 6 obese (BMI>28) sedentary young men performed treadmill running for 30 min at similar exercise intensities (60% VO2max) one hour after caffeine (5 mg/kg body mass) or placebo ingestion. Gas exchange was measured by indirect calorimetry/open-circuit spirometry. Heart rate (HR) was measured throughout the exercise. Blood pressure (BP) measurements were taken at baseline, 1 h after caffeine/placebo ingestion and immediately after exercise. Repeated measures ANOVA was used in data analysis.Results: Caffeine significantly (p<0.05 - 0.01) increased the exercise-induced oxygen uptake, energy expenditure, systolic blood pressure and heart rate in both groups, the respiratory exchange ratio remaining unchanged. The effects of caffeine were in both groups alike.Conclusions: Caffeine activates metabolism without inducing major changes in fat/carbohydrate oxidation. The differences in body fat content seem not to affect the caffeine-induced effects in a submaximal exercise.
Słowa kluczowe
Wydawca
Rocznik
Tom
1
Strony
31-35
Opis fizyczny
Daty
wydano
2009-01-01
online
2009-09-08
Twórcy
  • Department of Sport Sciences, University of Guilan
  • Department of Sport Sciences, University of Guilan
  • Department of Sport Sciences, University of Guilan
  • Faculty of Sciences, University of Guilan, Rasht, Iran
  • Department of Sport Sciences, University of Guilan
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_v10101-009-0009-7
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