Related Experiment Videos
Creatine supplementation and performance in 6 consecutive 60 meter sprints.
C Javierre1, J R Barbany, V M Bonjorn
1Depto. de Ciencias Fisiológicas II, Facultad de Medicina (Campus de Bellvitge), (IDIBELL), Universidad de Barcelona, Ctra. Feixa Llarga s./n., 08907 L'Hospitalet de Llobregat, Spain. cjavierre@ub.edu
Journal of Physiology and Biochemistry
|June 17, 2005
Summary
Creatine monohydrate supplementation did not improve repeated 60-meter sprint performance in athletes. However, it did alter ventilatory parameters during recovery after maximal exertion.
Area of Science:
- Sports Science
- Exercise Physiology
- Biochemistry
Background:
- Creatine is a popular ergogenic aid for athletes.
- Its effects on repeated high-intensity performance and physiological markers require further investigation.
Purpose of the Study:
- To assess the impact of creatine monohydrate supplementation on repeated sprint performance.
- To analyze changes in biochemical and ventilatory parameters following supplementation.
Main Methods:
- Nineteen physically active males received either creatine monohydrate (20 g/day for 5 days) or a placebo.
- Performance in 6 consecutive 60-meter sprints was measured before and after supplementation.
- Plasma creatinine, body composition, and ventilatory responses during recovery were assessed.
Main Results:
- No significant improvements in sprint performance, body weight, or body water were observed.
- Plasma creatinine levels significantly increased in the creatine group.
- The creatine group exhibited lower expiratory volume, O2 uptake, and CO2 production during recovery.
Conclusions:
- Creatine monohydrate supplementation does not enhance performance in repeated 60-meter sprints.
- Supplementation may influence ventilatory recovery dynamics after maximal exercise.