European Journal of Applied Physiology

, Volume 111, Issue 8, pp 1669–1677

Effect of caffeine ingestion after creatine supplementation on intermittent high-intensity sprint performance

Original Article

DOI: 10.1007/s00421-010-1792-0

Cite this article as:
Lee, CL., Lin, JC. & Cheng, CF. Eur J Appl Physiol (2011) 111: 1669. doi:10.1007/s00421-010-1792-0

Abstract

The aim of this study was to investigate the effects of acute caffeine ingestion on intermittent high-intensity sprint performance after 5 days of creatine loading. After completing a control trial (no ergogenic aids, CON), twelve physically active men were administered in a double-blind, randomized crossover protocol to receive CRE + PLA (0.3 g kg−1 day−1 of creatine for 5 days then followed by 6 mg kg−1 of placebo) and CRE + CAF (0.3 g kg−1 day−1 of creatine for 5 days and followed by 6 mg kg−1 of caffeine), after which they performed a repeated sprint test. Each test consisted of six 10-s intermittent high-intensity sprints on a cycling ergometer, with 60-s rest intervals between sprints. Mean power, peak power, rating of perceived exertion (RPE), and heart rates were measured during the test. Blood samples for lactate, glucose, and catecholamine concentrations were drawn at specified intervals. The mean and peak power observed in the CRE + CAF were significantly higher than those found in the CON during Sprints 1 and 3; and the CRE + CAF showed significantly higher mean and peak power than that in the CRE + PLA during Sprints 1 and 2. The mean and peak power during Sprint 3 in the CRE + PLA was significantly greater than that in the CON. Heart rates, plasma lactate, and glucose increased significantly with CRE + CAF during most sprints. No significant differences were observed in the RPE among the three trials. The present study determined that caffeine ingestion after creatine supplements augmented intermittent high-intensity sprint performance.

Keywords

Anaerobic Catecholamine Ergogenic aids Glycolytic metabolism Repeated-sprint ability 

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Chia-Lun Lee
    • 1
  • Jung-Charng Lin
    • 2
  • Ching-Feng Cheng
    • 3
  1. 1.Department of Recreational Sports ManagementYu Da UniversityMiaoliTaiwan
  2. 2.Graduate Institute of Sport Coaching ScienceChinese Culture UniversityTaipeiTaiwan
  3. 3.Department of Athletic PerformanceNational Taiwan Normal UniversityTaipei City 116Taiwan

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