Caffeine Augments the Lactate and Interleukin-6 Response to Moderate-Intensity Exercise.
In: Medicine & Science in Sports & Exercise, Jg. 55 (2023-06-01), Heft 6, S. 982-990
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Zugriff:
Introduction: The release of interleukin (IL)-6 from contracting skeletal muscle is thought to contribute to some of the health benefits bestowed by exercise. This IL-6 response seems proportional to exercise volume and to lactate production. Unfortunately, high volumes of exercise are not feasible for all people. Caffeine augments the magnitude of increase in circulating IL-6 in response to high-intensity and long-duration exercise. Caffeine also increases circulating concentrations of lactate during exercise. We hypothesized that caffeine, ingested before short-duration, moderate-intensity exercise, would lead to greater circulating concentrations of lactate and IL-6 in a study population comprising both male and female individuals. Methods: Twenty healthy adults (10 men and 10 women age 25 ± 7 yr (mean ± SD)) completed 30 min of moderate-intensity cycle ergometer exercise, at an intensity corresponding to 60% peak oxygen uptake, after ingesting either caffeine (6 mg·kg−1) or placebo. Arterialized-venous blood was collected throughout each of the exercise sessions. Results: Compared with placebo, caffeine increased circulating concentrations of lactate at the end of exercise (5.12 ± 3.67 vs 6.45 ± 4.40 mmol·L−1, P < 0.001) and after 30 min of inactive recovery (1.83 ± 1.59 vs 2.32 ± 2.09 mmol·L−1, P = 0.006). Circulating IL-6 concentrations were greatest after 30 min of inactive recovery (P < 0.001) and higher with caffeine (2.88 ± 2.05 vs 4.18 ± 2.97, pg·mL−1, P < 0.001). Secondary analysis indicated sex differences; caffeine increased the IL-6 response to exercise in men (P = 0.035) but not in women (P = 0.358). Conclusions: In response to moderate-intensity exercise, caffeine evoked greater circulating lactate concentrations in men and women but only increased the IL-6 response to exercise in men. These novel findings suggest that for men unwilling or unable to perform high-intensity and/or long-duration exercise, caffeine may augment the health benefits of relatively short, moderate-intensity exercise. [ABSTRACT FROM AUTHOR]
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Caffeine Augments the Lactate and Interleukin-6 Response to Moderate-Intensity Exercise.
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Autor/in / Beteiligte Person: | ABBOTTS, KIERAN SHAY STRUEBIN ; EWELL, TAYLOR RUSSELL ; BOMAR, MATTHEW CHARLES ; BUTTERKLEE, HANNAH MICHELLE ; BELL, CHRISTOPHER |
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Zeitschrift: | Medicine & Science in Sports & Exercise, Jg. 55 (2023-06-01), Heft 6, S. 982-990 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 0195-9131 (print) |
DOI: | 10.1249/MSS.0000000000003121 |
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