Figure 3.

Effect of l‐citrulline supplementation on swimming endurance. Mice were trained to perform swimming exercise every other day for 14 days, then a swimming‐until‐exhaustion test was carried out on day 15. A) Swimming time to exhaustion, B) blood lactate levels before and after exercise (0 and 60 min), and C) blood glucose levels after exercise (0 min) were evaluated. Values are expressed as the mean ± standard deviation. *p ≤ 0.05 and **p ≤ 0.01 indicate a significant difference compared to the control group. The individual raw data was plotted over the bar graph.