The Effects of Asparagus Racemosus Supplementation Plus 8 Weeks of Resistance Training on Muscular Strength and Endurance

Authors

John Paul V. Anders, University of Nebraska-LincolnFollow
Joshua L. Keller, University of Nebraska-LincolnFollow
Cory M. Smith, University of Texas at El PasoFollow
Ethan C. Hill PhD, University of Central FloridaFollow
Terry J. Housh, University of Nebraska-LincolnFollow
Richard J. Schmidt, University of Nebraska-LincolnFollow
Glen O. Johnson, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

1-17-2020

Citation

020 by the authors. Licensee MDPI, Basel, Switzerland.

Comments

J. Funct. Morphol. Kinesiol. 2020, 5, 4; doi:10.3390/jfmk5010004

www.mdpi.com/journal/jfmk

Abstract

Previous studies have demonstrated that ayurvedic ingredients exhibit ergogenic (performance enhancing) properties, however, no previous studies have examined the ergogenic potential of Asparagus racemosus. The purpose of the present study was to examine the ergogenic efficacy of supplementation with 500 mg·d−1 of A. racemosus during bench press training. Eighteen recreationally trained men (mean ± SD; age = 20.4 ± 0.5 yrs; height = 179.7 ± 1.5 cm; weight = 84.7 ± 5.7 kg) were randomly assigned either 500 mg·d−1 of A. racemosus (n = 10) or placebo (n = 8). An overlapping sample of 10 participants were used to determine test-retest reliability. Pre- and post-training testing included bench press with one repetition maximum (1RM) and repetitions to failure at 70% of pre-training 1RM. The participants performed two sets of bench press to failure three times a week for eight weeks. Independent t-tests, Analyses of covariance (ANCOVA), and regression analyses were used to analyze the dependent variables. The results demonstrated greater mean percentage (14.3 ± 7.7% vs. 7.8 ± 4.5%; p = 0.048) and individual (80% vs. 50%) increases in 1RM, mean (17.5 ± 2.2 repetitions vs. 15.2 ± 2.2 repetitions; p = 0.044) and individual (80% vs. 38%) increases in repetitions to failure, and a greater rate of increase in training loads for the Asparagus racemosus group than the placebo group. In conjunction with bench press training, supplementation with A. racemosus provided ergogenic benefits compared to placebo.