PMID- 25884315 OWN - NLM STAT- MEDLINE DCOM- 20160704 LR - 20220330 IS - 1715-5320 (Electronic) IS - 1715-5312 (Linking) VI - 40 IP - 5 DP - 2015 May TI - Effects of isolated or combined carbohydrate and caffeine supplementation between 2 daily training sessions on soccer performance. PG - 457-63 LID - 10.1139/apnm-2014-0268 [doi] AB - This study aimed to investigate whether isolated or combined carbohydrate (CHO) and caffeine (CAF) supplementation have beneficial effects on performance during soccer-related tests performed after a previous training session. Eleven male, amateur soccer players completed 4 trials in a randomized, double-blind, and crossover design. In the morning, participants performed the Loughborough Intermittent Shuttle Test (LIST). Then, participants ingested (i) 1.2 g.kg(-1) body mass.h(-1) CHO in a 20% CHO solution immediately after and 1, 2, and 3 h after the LIST; (ii) CAF (6 mg.kg(-1) body mass) 3 h after the LIST; (iii) CHO combined with CAF (CHO+CAF); and (iv) placebo. All drinks were taste-matched and flavourless. After this 4-h recovery, participants performed a countermovement jump (CMJ) test, a Loughborough Soccer Passing Test (LSPT), and a repeated-sprint test. There were no main effects of supplementation for CMJ, LSPT total time, or best sprint and total sprint time from the repeated-sprint test (p>0.05). There were also no main effects of supplementation for heart rate, plasma lactate concentration, rating of perceived exertion (RPE), pleasure-displeasure, and perceived activation (p>0.05). However, there were significant time effects (p<0.05), with heart rate, plasma lactate concentration, RPE, and perceived activation increasing with time, and pleasure-displeasure decreasing with time. In conclusion, isolated and/or combined CHO and CAF supplementation is not able to improve soccer-related performance tests when performed after a previous training session. FAU - Andrade-Souza, Victor Amorim AU - Andrade-Souza VA AD - Department of Physical Education and Sports Science (CAV), Federal University of Pernambuco, Alto do Reservatorio Street, Bela Vista, Vitoria de Santo Antao, Pernambuco, 55608680 Brazil. FAU - Bertuzzi, Romulo AU - Bertuzzi R FAU - de Araujo, Gustavo Gomes AU - de Araujo GG FAU - Bishop, David AU - Bishop D FAU - Lima-Silva, Adriano Eduardo AU - Lima-Silva AE LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20150112 PL - Canada TA - Appl Physiol Nutr Metab JT - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme JID - 101264333 RN - 0 (Dietary Carbohydrates) RN - 33X04XA5AT (Lactic Acid) RN - 3G6A5W338E (Caffeine) SB - IM MH - Adult MH - Athletic Performance/*statistics & numerical data MH - Caffeine/*pharmacology MH - Cross-Over Studies MH - Dietary Carbohydrates/*pharmacology MH - *Dietary Supplements MH - Double-Blind Method MH - Exercise Test/*statistics & numerical data MH - Heart Rate/drug effects MH - Humans MH - Lactic Acid/blood MH - Male MH - *Soccer MH - Time Factors OTO - NOTNLM OT - athletic performance OT - fatigue OT - nutrition OT - performance sportive OT - recovery OT - recuperation EDAT- 2015/04/18 06:00 MHDA- 2016/07/05 06:00 CRDT- 2015/04/18 06:00 PHST- 2015/04/18 06:00 [entrez] PHST- 2015/04/18 06:00 [pubmed] PHST- 2016/07/05 06:00 [medline] AID - 10.1139/apnm-2014-0268 [doi] PST - ppublish SO - Appl Physiol Nutr Metab. 2015 May;40(5):457-63. doi: 10.1139/apnm-2014-0268. Epub 2015 Jan 12.