PMID- 17316376
OWN - NLM
STAT- MEDLINE
DCOM- 20080108
LR  - 20081121
IS  - 0905-7188 (Print)
IS  - 0905-7188 (Linking)
VI  - 17
IP  - 5
DP  - 2007 Oct
TI  - Carbohydrate ingestion during prolonged high-intensity intermittent exercise: 
      impact on affect and perceived exertion.
PG  - 605-10
AB  - This study was designed to determine the effects of ingesting a carbohydrate 
      (CHO) solution on affective states and rating of perceived exertion (RPE) during 
      prolonged intermittent high-intensity exercise. Seventeen male soccer players 
      completed a prolonged intermittent high-intensity exercise protocol for 90 min on 
      two occasions, separated by at least 7 days. Participants consumed either a 6.4% 
      CHO (0.6 g/kg body mass (BM)/h) or an artificially sweetened placebo (PLA) 
      solution immediately before (8 mL/kg BM) and every 15 min (3 mL/kg BM) during 
      exercise in a double-blind, counterbalanced design. Pleasure-displeasure, 
      perceived activation, RPE and plasma glucose concentration was assessed. The 
      results showed that compared with the CHO trial, perceived activation were lower 
      in the placebo trial during the last 30 min of exercise and this was accompanied 
      by lowered plasma glucose concentrations. In the CHO trial, RPE was maintained in 
      the last 30 min of exercise but carried on increasing in the PLA trial. 
      Therefore, CHO ingestion during prolonged high-intensity exercise appears to 
      elicit an enhanced perceived activation profile that may impact upon task 
      persistence and performance. This finding is in addition to the physiological and 
      metabolic benefits of the exogenous energy supply.
FAU - Backhouse, S H
AU  - Backhouse SH
AD  - Carnegie Research Institute, Leeds Metropolitan University, Leeds, UK. 
      s.backhouse@leedsmet.ac.uk
FAU - Ali, A
AU  - Ali A
FAU - Biddle, S J H
AU  - Biddle SJ
FAU - Williams, C
AU  - Williams C
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070219
PL  - Denmark
TA  - Scand J Med Sci Sports
JT  - Scandinavian journal of medicine & science in sports
JID - 9111504
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
SB  - IM
MH  - Adult
MH  - *Affect
MH  - Blood Glucose/physiology
MH  - Dietary Carbohydrates/*administration & dosage
MH  - Dietary Supplements
MH  - Exercise/*physiology
MH  - Exercise Test
MH  - Humans
MH  - Male
MH  - Muscle, Skeletal/*physiology
MH  - Nutritional Status
MH  - Oxygen Consumption
MH  - Physical Endurance/*physiology
MH  - *Physical Exertion
MH  - Prospective Studies
MH  - Soccer/*physiology
MH  - Time Factors
EDAT- 2007/02/24 09:00
MHDA- 2008/01/09 09:00
CRDT- 2007/02/24 09:00
PHST- 2007/02/24 09:00 [pubmed]
PHST- 2008/01/09 09:00 [medline]
PHST- 2007/02/24 09:00 [entrez]
AID - SMS613 [pii]
AID - 10.1111/j.1600-0838.2006.00613.x [doi]
PST - ppublish
SO  - Scand J Med Sci Sports. 2007 Oct;17(5):605-10. doi: 
      10.1111/j.1600-0838.2006.00613.x. Epub 2007 Feb 19.