Ben Wax

Acute ingestion of L-arginine alpha-ketoglutarate fails to improve muscular force output and endurance in resistance exercise trained and untrained men

Author(s): Heather E. Webb & Stanley Brown

Abstract:
Dietary supplements containing L-arginine are marketed to improve exercise performance, but the efficacy of such supplements is not clear. Therefore, this study examined the efficacy of acute ingestion of L-arginine alpha-ketoglutarate (AAKG) muscular strength and endurance in resistance trained and untrained men. The results from our study indicate that acute AAKG supplementation provides no ergogenic benefit on 1RM or TLV as measured by the standard barbell bench press and leg press, regardless of the subjects' training status.

Citation:
Wax, B., Kavazis, A. N., Webb, H. E., Brown, S. P. (2012) Acute ingestion of L-arginine alpha-ketoglutarate fails to improve muscular force output and endurance in resistance exercise trained and untrained men. Journal of the International Society of Sports Nutrition. 9(17). doi: 10.1186/1550-2783-9-17

Effects of carbohydrate intake on force output and time to exhaustion during static leg contractions superimposed with electromyostimulation

Author(s): Stanley Brown & Heather E. Webb

Abstract:
The purpose of this study was to investigate the effects of carbohydrate ingestion on force output and time to exhaustion using single leg static contractions superimposed with brief periods of electromyostimulation. Data suggest that carbohydrate ingestion before and during static muscle contractions can increase force output and increase time to exhaustion. Therefore, our data suggest that carbohydrate supplementation before and during resistance exercise might help increase the training volume of athletes.

Citation:
Wax, B., Brown, S. P., Webb, H. E., & Kavazis, A. N. (2011). Effects of carbohydrate intake on force output and time to exhaustion during static leg contractions superimposed with electromyostimulation. Journal of Strength and Conditioning Research, 26(6), 1717-23. doi: 10.1519/JSC.0b013e318234ec0e