The effect of phosphatidylserine on golf performance
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BioMed Central
Open Access
Research article
The effect of phosphatidylserine on golf performance Ralf Jäger*1, Martin Purpura1, Kurt-Reiner Geiss2, Michael Weiß3, Jochen Baumeister3, Francesco Amatulli4, Lars Schröder4 and Holger Herwegen4 Address: 1Increnovo LLC, 2138 E Lafayette Pl, Milwaukee, WI 53202, USA, 2ISME, Weingartenstrasse 2, D-64546 Mörfelden-Walldorf, Germany, 3Department of Sport and Health, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany and 4Department of Sport and Health, Institute of Sports Medicine and Golf Academy, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany Email: Ralf Jäger* - [email protected]; Martin Purpura - [email protected]; Kurt-Reiner Geiss - [email protected]; Michael Weiß - [email protected]; Jochen Baumeister - [email protected]; Francesco Amatulli - [email protected]; Lars Schröder - [email protected]; Holger Herwegen - [email protected] * Corresponding author
Published: 4 December 2007 Journal of the International Society of Sports Nutrition 2007, 4:23 23
doi:10.1186/1550-2783-4-
Received: 11 July 2007 Accepted: 4 December 2007
This article is available from: http://www.jissn.com/content/4/1/23 © 2007 Jäger et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract Background: A randomized, double-blind, placebo-controlled study was performed to evaluate the effect of oral phosphatidylserine (PS) supplementation on golf performance in healthy young golfers with handicaps of 15–40. Methods: Perceived stress, heart rate and the quality of the ball flight was evaluated before (pretest) and after (post-test) 42 days of 200 mg per day PS (n = 10) or placebo (n = 10) intake in the form of a nutritional bar. Subjects teed-off 20 times aiming at a green 135 meters from the tee area. Results: PS supplementation significantly increased (p < 0.05) the number of good ball flights (mean: pre-test 8.3 ± 3.5, post-test 10.1 ± 3.0), whereas placebo intake (mean: pre-test 7.8 ± 2.4, post-test 7.9 ± 3.6) had no effect. PS supplementation showed a trend towards improving perceived stress levels during teeing-off (mean: pre-test 5.8 ± 2.0, post-test 4.0 ± 2.0, p = 0.07), whereas stress levels remained unchanged in the placebo group (mean: pre-test: 5.1 ± 2.0, post-test: 5.1 ± 3.1). Supplementation did not influence mean heart rate in either group. Conclusion: It is concluded that six weeks of PS supplementation shows a statistically not significant tendency (p = 0.07) to improve perceived stress levels in golfers and significantly improves (p < 0.05) the number of good ball flights during tee-off which might result in improved golf scores.
Background Phosphatidylserine (PS) is an essential component of all biological membranes and
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