Naclerio, Fernando ORCID: https://orcid.org/0000-0001-7405-4894, Larumbe-Zabala, Eneko, Cooper, Robert, Jimenez, Alfonso and Goss-Sampson, Mark ORCID: https://orcid.org/0000-0002-2662-559X (2014) Effect of a carbohydrate-protein multi-ingredient supplement on intermittent sprint performance and muscle damage in recreational athletes. Applied Physiology, Nutrition, and Metabolism, 39 (10). pp. 1151-1158. ISSN 1715-5312 (Print), 1715-5320 (Online) (doi:10.1139/apnm-2013-0556)

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Abstract

Carbohydrate-protein–based multi-ingredient supplements have been proposed as an effective strategy for limiting the deleterious effects of exercise-induced muscle damage. This study compares the effects of a commercially available carbohydrate–protein supplement enriched with l-glutamine and l-carnitine-l-tartrate to carbohydrate alone or placebo on sprint performance, muscle damage markers, and recovery from intermittent exercise. On 3 occasions, 10 recreationally trained males ingested a multi-ingredient, a carbohydrate supplement, or a placebo before, during, and immediately after a 90-min intermittent repeated sprint test. Fifteen-metre sprint times, creatine kinase, myoglobin, and interleukin-6 were assessed before (pre), immediately after (post), 1 h after (1h), and 24 h after (24h) exercise. Total sprint time measured during the intermittent protocol was not different between conditions. Fifteen-metre sprint time was slower (p < 0.05) at post, 1h and 24h compared with pre without differences between conditions (p > 0.05). Creatine kinase at 24h was lower (p < 0.05) in the multi-ingredient (461.8 ± 271.8 U·L) compared with both carbohydrate and placebo (606 ± 314.5 U·L and 636 ± 344.6 U·L, respectively). Myoglobin increased (p < 0.05) in all 3 conditions at post and 1h compared with pre, showing lower values at 1h (p < 0.05) for the carbohydrate and a trend (p = 0.060) for multi-ingredient compared with the placebo condition (211.4 ± 127.2 ng·mL−1 and 239.4 ± 103.8 ng·mL−1 vs. 484.6 ± 200.0 ng·mL−1, respectively). Interleukin-6 increased at both post and 1h compared with pre (p < 0.05) with no differences between conditions. In conclusion, ingesting a multi-ingredient supplement before, during, and immediately after a 90-min intermittent sprint test resulted in no effects on performance and fatigue while the accumulation of some biomarkers of muscle damage could be attenuated.

Item Type:	Article
Additional Information:	[1] The Canadian Society for Exercise Physiology and the Canadian Nutrition Society have chosen Applied Physiology, Nutrition, and Metabolism as their principal medium for the publication of research papers.
Uncontrolled Keywords:	creatine kinase, créatine kinase, fatigue musculaire, interleukin-6, interleukine-6, muscle fatigue, myoglobin, myoglobine, nutritional supplements
Subjects:	G Geography. Anthropology. Recreation > GV Recreation Leisure Q Science > QM Human anatomy Q Science > QP Physiology
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM) Faculty of Education, Health & Human Sciences > Institute for Lifecourse Development > Centre for Exercise Activity and Rehabilitation
Related URLs:	Publisher
Last Modified:	22 Nov 2021 11:49
URI:	http://gala.gre.ac.uk/id/eprint/12341

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