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Effects of phosphatidylserine on mental states in elite shooters

Objective The purpose of this study was to examine effects of a short-term oral supplementation of PS on biochemical stress indicators, whole brain neurotransmitters, mood states, and sleep quality in elite shooters. Methods Eighteen shooters including 9 males and 9 females participated in the study. They were randomly assigned into either of the three groups: 1) those who ingested PS at 400 mg·day-1 (n=6) (PS-400); 2) those who ingested PS at 800 mg·day-1 (n=6) (PS-800); 3) those who with no supplement (n=6) (CON). PS supplementation lasted for 14 days and was administered in a double-blinded fashion. Within a week prior to the supplementation, serial venous blood samples were taken for measuring serum levels testosterone (T), cortisol (C), blood urea nitrogen (BUN), and creatine kinase (CK). Subjects also completed the Profile of Mood States (POMS) scale and the Pittsburgh Sleep Quality Index (PSQI) questionnaire and undertook electroencephalogram that determined activation values of six neurotransmitters in whole brain, including inhibition of medium (INH), five hydroxy-tryptamine (5-HT), acetylcholine (ACH), dopamine (DA), norepinephrine (NE), and excited medium (EXC). Subjects repeated the same testing protocols and all variables were measured again after 14 days of supplementation.
© Copyright 2018 Exercise Biochemistry Review. International Research Group on Biochemistry of Exercise. All rights reserved.

Subjects: shooting supplementation ergogenic aid biochemistry high performance sport psychic process sport psychology
Notations: technical sports biological and medical sciences
DOI: 10.14428/ebr.v1i4.9863
Published in: Exercise Biochemistry Review
Published: 2018
Volume: 1
Issue: 4
Pages: PO-115
Document types: congress proceedings
Language: English
Level: advanced