Rb. Kreider et al., EFFECTS OF CARBOHYDRATE SUPPLEMENTATION DURING INTENSE TRAINING ON DIETARY PATTERNS, PSYCHOLOGICAL STATUS, AND PERFORMANCE, INT J SP NU, 5(2), 1995, pp. 125-135
The purpose of this study was to determine the effects of carbohydrate
supplementation during intense training on dietary patterns, psycholo
gical status, and markers of anaerobic and aerobic performance. Seven
members of the U.S. National Field Hockey Team were matched to 7 team
counterparts (N = 14). One group was blindly administered a carbohydra
te drink containing 1 g . kg(-1) of carbohydrate four times daily, whi
le the remaining group blindly ingested a flavored placebo during 7 da
ys of intense training. Subjects underwent pre- and posttraining aerob
ic and anaerobic assessments, recorded daily diet intake, and were adm
inistered the Profile of Mood States (POMS) psychological inventory pr
ior to and following each practice. Results revealed that the carbohyd
rate-supplemented group had a greater (p <.05) total energy intake, ca
rbohydrate intake, and change (pre vs. post) in time to maximal exhaus
tion following training while reporting less postpractice psychologica
l fatigue. However, no significant differences were observed in remain
ing psychological, physiological, or performance-related variables.