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1: J Int Soc Sports Nutr. 2007 Dec 4;4(1):23.Click here to read Click here to read Links

The effect of phosphatidylserine on golf performance.

Jäger R, Purpura M, Geiss KR, Weiß M, Baumeister J, Amatulli F, Schröder L, Herwegen H.

Increnovo LLC, 2138 E Lafayette Pl, Milwaukee, WI 53202, USA. ralf.jaeger@increnovo.com.

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 (pre-test) 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.

PMID: 18053194 [PubMed - as supplied by publisher]

PMCID: PMC2217563