The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Caffeine Does Not Augment Markers of Muscle Damage or Leukocytosis Following Resistance Exercise
Abstract
Purpose: The purpose of this study was to evaluate the effects of caffeine ingestion before a resistance exercise session on markers of muscle damage (CK, LDH, ALT, AST) and leukocyte levels. Methods: Fifteen soccer athletes completed two resistance exercise sessions that differed only in the ingestion of caffeine or a placebo preworkout. Results: CK concentration increased significantly following the caffeine session (415.8 ± 62.8 to 542.0 ± 73.5) and the placebo session (411.5 ± 43.3 to 545.8 ± 59.9), with no significant differences between sessions. Similarly, LDH concentration increased significantly following the caffeine session (377.5 ± 18.0 to 580.5 ± 36.1) and the placebo session (384.8 ± 13.9 to 570.4 ± 36.1), with no significant differences between sessions. Both sessions resulted in significant increases in the total leukocyte count (caffeine = 6.24 ± 2.08 to 8.84 ± 3.41; placebo = 6.36 ± 2.34 to 8.77 ± 3.20), neutrophils (caffeine = 3.37 ± 0.13 to 5.15 ± 0.28; placebo = 3.46 ± 0.17 to 5.12 ± 0.24), lymphocytes (caffeine = 2.19 ± 0.091 to 2.78 ± 0.10; placebo = 2.17 ± 0.100 to 2.75 ± 0.11), and monocytes (caffeine = 0.53 ± 0.02 to 0.72 ± 0.06; placebo = 0.56 ± 0.03 to 0.69 ± 0.04), with no significant differences between sessions. Conclusion: Ingestion of caffeine at 4.5 mg⋅kg-1 did not augment markers of muscle damage or leukocyte levels above that which occurs through resistance exercise alone.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“It is also likely that caffeine consumption at a dose of 4.5 mg/kg body mass does not cause signs of muscle damage or white blood cell levels higher than those that occur during resistance exercise (29).”
From Junior athletes’ nutritional demands: a narrative review of consumption and prevalence of eating disorders (2024) · cites this paper as [29]
In the citing paper
“Table 1 shows four studies of the effect of coffee on the athletic performance of young people ≤18 years. These studies concluded that caffeine enhances the intensity and duration of sports activity and also reduces the feeling of pain and fatigue during exercise (27–30).”
From Junior athletes’ nutritional demands: a narrative review of consumption and prevalence of eating disorders (2024) · cites this paper as [29]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Fundamentals of Resistance Training: Progression and Exercise Prescription
KRAEMER, W. J., & RATAMESS, N. A. (2004) · Medicine & Science in Sports & Exercise · doi:10.1249/01.mss.0000121945.36635.61 · Cited by 1,992
Caffeine and Exercise: Metabolism, Endurance and Performance
Graham, T. E. (2001) · Sports Medicine · doi:10.2165/00007256-200131110-00002 · Cited by 819
Effect of different protocols of caffeine intake on metabolism and endurance performance
Cox, G. R., Desbrow, B., Montgomery, P. G., Anderson, M. E., Bruce, C. R., Macrides, T. A., Martin, D. T., Moquin, A., Roberts, A., Hawley, J. A., et al. (2002) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00249.2002 · Cited by 309
James, J. E. (2004) · Psychosomatic Medicine · doi:10.1097/10.psy.0000107884.78247.f9 · Cited by 232
Research works printed but not linked: 25
- Sökmen B, 2008, J Strength Cond Res., 22, 978, 10.1519/JSC.0b013e3181660cec · DOI
- Armstrong LE, 2007, Exerc Sport Sci Rev., 35, 135, 10.1097/jes.0b013e3180a02cc1 · DOI
- Hoffman JR, 2007, J Strength Cond Res., 21, 456
- Stephenson DG., 2008, J Physiol., 586, 695, 10.1113/jphysiol.2007.148270 · DOI
- Schneiker KT, 2006, Med Sci Sports Exerc., 38, 578, 10.1249/01.mss.0000188449.18968.62 · DOI
- Conway KJ, 2003, J Appl Physiol., 94, 1557, 10.1152/japplphysiol.00911.2002 · DOI
- Mclean C, 2002, J Appl Physiol., 93, 1471, 10.1152/japplphysiol.00762.2000 · DOI
- Dennehy CE, 2005, Am J Health Syst Pharm., 62, 1476, 10.2146/ajhp040412 · DOI
- Kruk B, 2001, Psychopharmacology (Berl)., 157, 197, 10.1007/s002130100787 · DOI
- Bulent S, 2008, J Strength Cond Res., 22, 978, 10.1519/JSC.0b013e3181660cec · DOI
- Walker GJ, 2007, Med Sci Sports Exerc., 39, 1554, 10.1249/mss.0b013e3180a74228 · DOI
- Pedersen BK, 1997, Int J Sports Med., 18, s2, 10.1055/s-2007-972695 · DOI
- Liu JF, 2005, Ann N Y Acad Sci., 1042, 255, 10.1196/annals.1338.029 · DOI
- Peake JM, 2005, Med Sci Sports Exerc., 37, 737, 10.1249/01.MSS.0000161804.05399.3B · DOI · Paper page
- Magaudda L, 2004, Basic Appl Myol., 14, 17
- Bassini-Cameron A, 2007, Br J Sports Med., 41, 523, 10.1136/bjsm.2007.035147 · DOI
- Maridakis V, 2007, J Pain., 8, 237, 10.1016/j.jpain.2006.08.006 · DOI
- Bishop NC, 2005, Eur J Appl Physiol., 93, 606, 10.1007/s00421-004-1271-6 · DOI
- Mayhew DL, 2005, J Strength Cond Res., 19, 16
- Brancaccio P, 2007, Br Med Bull., 81
- Mougios V, 2007, Br J Sports Med., 41, 674, 10.1136/bjsm.2006.034041 · DOI · Paper page
- Totsuka M, 2002, J Appl Physiol., 93, 1280, 10.1152/japplphysiol.01270.2001 · DOI
- Pettersson J, 2008, Br J Clin Pharmacol., 65, 253, 10.1111/j.1365-2125.2007.03001.x · DOI · Paper page
- Chevion S, 2003, Proc Natl Acad Sci USA., 100, 5119, 10.1073/pnas.0831097100 · DOI · Paper page
- Tunnicliffe JM, 2008, Appl Physiol Nutr Metab., 33, 1301, 10.1139/H08-124 · DOI
Cited by
Ferreira, R. E. S., Pacheco, R. L., de Oliveira Cruz Latorraca, C., Riera, R., Eid, R. G., & Martimbianco, A. L. C. (2021) · Sports Health: A Multidisciplinary Approach · doi:10.1177/1941738121998712 · Cited by 27
Amawi, A., Khataybeh, B., Al Aqaili, R., Ababneh, N., Alnimer, L., Qoqazeh, A., Oukal, F., Jahrami, H., Mousa Ay, K., Al Saoud, H., et al. (2024) · Frontiers in Nutrition · doi:10.3389/fnut.2024.1390204 · Cited by 26
Metadata
- Authors
- Machado, M., Koch, A. J., Willardson, J. M., dos Santos, F. C., Curty, V. M., & Pereira, L. N.
- Venue
- International Journal of Sports Physiology and Performance
- Publisher
- Human Kinetics
- Published
- 2010-03
- Volume
- 5
- Issue
- 1
- Pages
- 18-26
- ISSN
- 1555-0265
- 1555-0273
- Cited by
- 23
- References
- 4
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
