title: Female distance runners show a different response to post-workout consumption of wheat gluten hydrolysate compared to their male counterparts.
abstract: Wheat gluten hydrolysate (WGH) is rich in glutamyl residue; glutamine is considered a conditionally essential amino acid under physical stress. WGH has been reported to suppress post-exercise rises in serum creatine kinase in male distance runners. This study aimed to reproduce the effects in female distance runners under similar conditions. The study was conducted in a double-blinded crossover manner. Six female collegiate distance runners ingested WGH or a placebo after a 2-h run at an intensity estimated as 60-70% of their maximum oxygen uptake. Blood was sampled before, immediately after, and at 10 and 24 h after the run. Unlike those in male runners, serum creatine kinase (CK) increased slightly, with a peak at 10 h after the run, while plasma glutamine kept declining. The anti-inflammatory effect of WGH was not evident since the post-exercise elevation of CK was ambiguous. Plasma glutamine concentrations also showed a different kinetics from that in men.
authors.affiliation: Department of Sports Science, School of Health and Sports Science, Juntendo University, Chiba 270-1695;
authors.forename: Tomomi
authors.initials: T
authors.lastname: Hirao
authors.forename: Natsue
authors.initials: N
authors.lastname: Koikawa
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Aoki
authors.forename: Keishoku
authors.initials: K
authors.lastname: Sakuraba
authors.forename: Yuki
authors.initials: Y
authors.lastname: Shimmura
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Keisuke
authors.initials: K
authors.lastname: Sawaki