Keywords
Muscular endurance, Blood flow, Nitric oxide
Disciplines
Sports Sciences
Abstract
Introduction: To further understand the effects of L-arginine on both its ability to enhance lactate clearance and increase overall blood flow before, during, and after exhaustive anaerobic exercise.
Methods: Twelve healthy male subjects between the ages of 18-25 first completed an initial visit where baseline data was recorded. Subjects completed three additional visits, in which they ingested either a placebo, two-gram or four-gram dose of L-arginine. Blood flow (BF) and lactate were recorded before ingestion of the treatment, 5 and 15-minutes post-ingestion prior to performing a push-up test to volitional fatigue. Immediately following the push-up test, BF and lactate were assessed and again 15-minutes post exercise.
Results: Blood lactate did not differ across condition (p=0.569). Lactate clearance was not influenced by L-arginine when analyzing the Area Under Curve. Blood flow increased with ingestion of the four-gram dose while at rest (the 15-minute mark). Blood flow was also enhanced in the four-gram dose immediately after exercise at the 25-minute mark.
Conclusions: The data suggests that a four-gram dose of L-arginine plays a more significant role in blood flow than the clearance of lactate after exercise compared to a two-gram dose or placebo.
Original Citation
Feeback, M., & Reitsma, B. (2022). Hemodynamic and Lactate Response to Exhaustive Exercise with L-Arginine Supplementation. Journal of Exercise and Nutrition, 5(1). https://doi.org/10.53520/jen2022.103114
ScholarWorks Citation
Feeback, Matthew and Reitsma, Bailey, "Hemodynamic and Lactate Response to Exhaustive Exercise with L-Arginine Supplementation" (2022). Open Access Publishing Support Funded Articles. 134.
https://scholarworks.gvsu.edu/oapsf_articles/134
