here's the study
Eur J Appl Physiol. 2007 Aug 16;
Effects of a multi-nutrient supplement on exercise performance and hormonal responses to resistance exercise.
Kraemer WJ, Hatfield DL, Spiering BA, Vingren JL, Fragala MS, Ho JY, Volek JS, Anderson JM, Maresh CM.
Human Performance Laboratory, Department of Kinesiology, University of Connecticut, Storrs, CT, 06269, USA.
The purpose of this study was to determine the influence of a comprehensive multi-component nutritional supplement on performance, hormonal, and metabolic responses to an acute bout of resistance exercise. Nine healthy subjects ingested either Muscle Fueltrade mark (MF) or a matched placebo (PL) for 7 days. Subjects then reported to the laboratory, ingested the corresponding supplement, and performed two consecutive days of heavy resistance exercise testing with associated blood draws. MF supplementation improved vertical jump (VJ) power output and the number of repetitions performed at 80% of one repetition maximum (1RM). Additionally, MF supplementation potentiated growth hormone (GH), testosterone, and insulin-like growth factor-1 responses to exercise. Concentrations of circulating myoglobin and creatine kinase (CK) were attenuated immediately following resistance exercise during the MF trial, indicating that MF partially mediated some form of exercise-induced muscle tissue damage. In summary MF enhanced performance and hormonal responses associated with an acute bout of resistance exercise. These responses indicate that MF supplementation augments the quality of an acute bout of resistance exercise thereby increasing the endocrine signaling and recovery following heavy resistance exercise.
PMID: 17701421 [PubMed - as supplied by publisher]
Supplement Facts
at 39.95 for 10 serve it's a little expensive IMO. I could easily put something a similar pre-exercise shake together at half the cost. I don't have any marketing overheads of course
Here's the product page.
What are people's thoughts?
If you were making your own equivalent supplement what would you change?