Jl. Fallowfield et C. Williams, THE INFLUENCE OF A HIGH-CARBOHYDRATE INTAKE DURING RECOVERY FROM PROLONGED, CONSTANT-PACE RUNNING, INT J SP NU, 7(1), 1997, pp. 10-25
The present study examined the influence of ingesting 3.0 g CHO . kg(-
1) body mass . 2 hr(-1) after prolonged exercise on recovery and runni
ng capacity 4 hr later. Nine men and 8 women completed two trials in a
counterbalanced design. Each trial consisted of a 90-min run on a lev
el treadmill at 70% VO(2)max (R(1)) followed by 4 hr recovery (REC) an
d a further exhaustive run at 70% VO(2)max (R(2)). During REC, subject
s ingested either two feedings of a 6.9% glucose-polymer (GP) solution
(D trial) or two feedings of a 19.3% GP solution (C trial). There wer
e no differences in mean (+/-SE) R(2) run times between the C and D tr
ials or between the male and female subjects. More stable blood glucos
e concentrations were maintained during REC in the C trial, such that
blood glucose was elevated in the C trial in comparison with the D tri
al after 210 min of REC. It was concluded that increasing postexercise
carbohydrate intake from 1.0 to 3.0 g CHO . kg(-1) body mass . 2 hr(-
1) does not improve endurance capacity 1 hr later.