07/09/2020
The Risks and Rewards of Coffee - Avoid Fatigue and Enhance Performance in Combat Sports
Coffee will:
+ Increase muscular endurance and strength
+ Improve anaerobic power and aerobic endurance
- Reduce sleep duration
- Reduce sleep quality
A recent umbrella review of 21 meta-analyses by Grgic et al. (2019) concluded that: Caffeine ingestion improves exercise performance in a broad range of exercise tasks. Ergogenic effects of caffeine on muscle endurance, muscle strength, anaerobic power and aerobic endurance were substantiated by moderate quality of evidence coming from moderate-to-high quality systematic reviews.
Temple et al. (2018) conducted a meta-analysis on the effects of caffeine on fatigued shift workers in which they concluded that the research supports caffeine ingestion enhancing psychomotor performance and vigilance it also negatively affects sleep quality and sleep duration.
Recently I decided to stop consuming caffeine for a period of 4 weeks as I felt that it may have been masking my need to rest and recover more than I was. The science seems to support this belief and I have now started drinking coffee again but am limiting the amount I ingest and the timing of when I consume it to try and gain the ergogenic benefits while mitigating the negative impacts on sleep. Hopefully this will result in being able to gain the ergogenic benefits without negatively impacting sleep quality.
Grgic, J., Grgic, I., Pickering, C., Schoenfeld, B. J., Bishop, D. J., & Pedisic, Z. (2019) Wake up and smell the coffee: caffeine supplementation and exercise performance—an umbrella review of 21 published meta-analyses. British Journal of Sports Medicine, 54 (11). http://dx.doi.org/10.1136/bjsports-2018-100278
Temple, J. L., Hostler, D., Matron-Gill, C., Moore, C. G., Weiss, p. M., Sequeira, D. J., Condle, J. P., Lang, E. S., Higgins. J. S., & Patterson, P. D. (2018). Systematic Review and Meta-analysis of the Effects of Caffeine in Fatigued Shift Workers: Implications for Emergency Medical Services Personnel. Prehospital Emergency Care 22 (1), 47-46. https://doi.org/10.1080/10903127.2017.1382624
(2018). Systematic Review and Meta-analysis of the Effects of Caffeine in Fatigued Shift Workers: Implications for Emergency Medical Services Personnel. Prehospital Emergency Care: Vol. 22, NHTSA Fatigue in EMS project, pp. 37-46.