Magnesium status and the physical performance of volleyball players: effects of magnesium supplementation.
J Sports Sci. 2014;32(5):438-45. doi: 10.1080/02640414.2013.828847. Epub 2013 Sep 9.
Setaro L1, Santos-Silva PR, Nakano EY, Sales CH, Nunes N, Greve JM, Colli C.
1a Department of Food and Experimental Nutrition , Faculty of Pharmaceutical Sciences of University of São Paulo , São Paulo , Brazil.
Radomized Controlled Trial for 4 weeks
Used 350 mg of Magnesium with professional Volleyball players (people who really know how to jump)
Up to 3 cm higher jump in those getting Magnesium
From web: A countermovement jump is where the jumper starts from an upright standing position, makes a preliminary downward movement by flexing at the knees and hips, then immediately extends the knees and hips again to jump vertically up off the ground
See also VitaminDWiki
- Overview Sports and vitamin D wonder amount of jump increase if add Vitamin D AND Magnesium
- More muscle response when have adequate vitamin D chart of increase muscle response when vitamin D is added
- Vitamin D supplementation improves muscle strength in healthy adults – meta-analysis of 6 RCT Aug 2014
- Sports benefits from up to 50 ng of Vitamin – meta-analysis - Nov 2012
- Overview Magnesium and vitamin D
- Magnesium and Vitamin D very synergistic – Aug 2013
- Magnesium – I used to believe that food had enough, now I supplement with 400 mg daily – Dr. Lundberg May 2015
The aim of this study was to test the hypothesis that magnesium supplementation influences the physical performance of volleyball players, as the efficacy of this approach remains questionable. Twenty-five professional male volleyball players were assigned randomly to experimental (350 mg Mg · d(-1), 4 weeks) and control groups (500 mg maltodextrin · d(-1), 4 weeks) maintaining inter-group homogeneity of urinary magnesium. Erythrocyte, plasma and urinary magnesium levels, plasma creatine kinase activity, lactate production, maximal oxygen uptake (VO2 max) and plyometric (squat jump, countermovement jump, countermovement jump with arm swing) and isokinetic (peak torque, potency and total work) performances were evaluated before (T0) and after (T1) supplementation. Levels of erythrocyte and urinary magnesium and creatine kinase activity and VO2 max remained within normal ranges in both groups. Plasma magnesium decreased significantly only within the experimental group. Significant decreases in lactate production and significant increases (of up to 3 cm) in countermovement jump and countermovement jump with arm swing values were detected in the experimental group following magnesium supplementation, but not in the control group at T1. It is concluded that magnesium supplementation improved alactic anaerobic metabolism, even though the players were not magnesium-deficient.
Publisher wants $40 for PDF (to find out which form of Magnesium was used, etc)