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Original Article

Caffeine supplementation affects the immunometabolic response to concurrent training

초록

영어

The aim of the present study was to investigate the effects of caffeine (CAF) and carbohydrate (CHO) intake on strength performance and its metabolic and inflammatory responses during concurrent training. Sev-en active males ingested a double-placebo (P), CAF (capsule 5 mg/kg) or CHO (20% maltodextrin solution) supplementation before strength exercise. Participants performed three randomized sessions of 5,000-m high-intensity intermittent aerobic exercise at maximal intensity fol-lowed by strength exercise, performing after the P, CHO, and CAF in-take. The blood samples were collected before (pre) and immediately after concurrent strength exercise (post). We found a similar number of repetitions and total volume in all supplementation groups. There was a main effect of time on glucose, lactate, and interleukin (IL)-6 (P<0.05). When compared the changes between groups (postvalues minus prevalues), there was lower glucose in CAF group when compared to CHO group (CAF= 5.0±10.4 vs. CHO=27.8±20 vs. P=15.1±14, P=0.031) and higher IL-6 levels (CAF=11.9±9.2 vs. CHO=-2.4±1.7 vs. P=4.3± 11.7, P=0.017). There was significant interaction for glucose and lactate (P<0.001). In conclusion, CAF and CHO intake did not improve strength performance during concurrent strength training in active males. How-ever, CAF affected immunometabolic responses.

목차

Abstract
 INTRODUCTION
 MATERIALS AND METHODS
  Sample and sampling
  Design
  Concurrent exercise sessions
  CAF, CHO, and P ingestion
  Blood sampling and analyses
  Statistical analysis
 RESULTS
 DISCUSSION
 CONFLICT OF INTEREST
 ACKNOWLEDGMENTS
 REFERENCES

저자정보

  • Fabrício Eduardo Rossi Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, São Paulo, Brazil, Department of Sport, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
  • Valéria Leme Gonçalves Panissa Department of Sport, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
  • Paula Aulves Monteiro Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, São Paulo, Brazil
  • José Gerosa-Neto Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, São Paulo, Brazil
  • Érico Chagas Caperuto Human Movement Laboratory, Universidade São Judas Tadeu, São Paulo, Brazil
  • Jason Michael Cholewa Department of Kinesiology, Coastal Carolina University, Conway, SC, USA
  • Alessandro Moura Zagatto Department of Physical Education, Universidade Estadual Paulista, Bauru, São Paulo, Brazil
  • Fábio Santos Lira Exercise and Immunometabolism Research Group, Department of Physical Education, Universidade Estadual Paulista, Presidente Prudente, São Paulo, Brazil

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