From: Arginine and antioxidant supplement on performance in elderly male cyclists: a randomized controlled trial
AT (L/min)
VO2max (L/min)
Supplementation
Placebo
Week 0
2.04 ± 0.28
1.88 ± 0.16
3.71 ± 0.34
3.22 ± 0.62
Week 2
2.38 ± 0.18*
1.84 ± 0.18
3.69 ± 0.23
3.26 ± 0.46
Week 3
2.33 ± 0.44*
1.83 ± 0.21
3.72 ± 0.27
3.39 ± 0.47