Effect of short term caffeine supplementation and intermittent exercise on muscle damage markers
Journal Title: Biology of Sport - Year 2009, Vol 26, Issue 1
Abstract
Aim: To evaluate the effect of oral caffeine supplementation and strenuous intermittent exercise on muscle damage markers in soccer players. Materials and Methods: 15 male professional soccer players completed a placebo controlled double blind test protocol. At 45 min before exercise, participants ingested 5.5 mg•kg-1 body mass of caffeine (CAF, n=8) or cellulose (CEL, n=7). The exercise was 2 trials of 6 sets of 10 sprints (20 m each) with 10 s recovery time between sprints, 2 min between sets and 15 min between trials. Blood samples were collected before (PRE), 24, 48 and 72 h after exercise. Serum activity of creatine kinase (CK), lactate dehydrogenase (LDH), aspartate aminotransaminase (AST), and alanine aminotrasaminase (ALT) were quantified. Results: Serum enzyme activity was enhanced by exercise in both groups, without a synergistic effect of caffeine. Conclusion: Our results suggest muscle damage markers increases after physical activities, but caffeine supplementation (5.5 mg•kg-1 body mass) has no influence upon serum enzymes reflective of muscle integrity and damage.
Authors and Affiliations
M Machado, JFF Vigo, AC Breder, JR Simões, MC Ximenes
Keywords
Related Articles
- EP ID EP58954
- DOI -
- Views 133
- Downloads 0
COMPARISON OF ANTHROPOMETRIC CHARACTERISTICS BETWEEN PROFESSIONAL TRIATHLETES AND CYCLISTS
Anthropometric characteristics of athletes are considered to be an important determinant of success in sport. The aim of the present study was to compare several anthropometric parameters and subjective characteristics o...
Relationship between oxygen uptake and oxygen supply system during constant-load supine exercise
The purpose of this study was to determine the relationship between oxygen uptake (VO2) kinetics and oxygen supply system during constant-load exercise in the supine position. The main exercises which were carried in sup...
BODY STRUCTURE AND COMPOSITION OF CANOEISTS AND KAYAKERS: ANALYSIS OF JUNIOR AND TEENAGE POLISH NATIONAL CANOEING TEAM
The somatic build, biological age, general state of health, mental predisposition and physical fitness are the criteria for selection of individuals in competitive sport. The present study aims to analys the difference...
Increased extracellular dopamine and 5-hydroxytryptamine levels contribute to enhanced subthalamic nucleus neural activity during exhausting exercise
The purpose of the study was to explore the mechanism underlying the enhanced subthalamic nucleus (STN) neural activity during exhausting exercise from the perspective of monoamine neurotransmitters and changes of their...
HIGH-SENSITIVITY C-REACTIVE PROTEIN (hsCRP) IN YOUNG ADULTS: RELATION TO AEROBIC CAPACITY, PHYSICAL ACTIVITY AND RISK FACTORS FOR CARDIOVASCULAR DISEASES
Atheromatosis develops as a result of a chronic inflammatory process of the arteries. Inflammatory biomarkers, particularly high-sensitivity C-reactive protein (hsCRP), positively correlate with atheromatosis risk factor...