Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
More IGF-1 and IGF-2 after heavy training due to supplementation with quercetin
Supplementation with quercetin could speed up recovery from heavy physical exertion. During training, quercetin not only reduces muscle damage, but after the session, quercetin also increases IGF-1 and IGF-2 levels.
In the preceding 14 days, the students had taken a placebo every day on one occasion. On the other occasion, the students had taken two capsules each day, each containing 500 milligrams of quercetin. In total, the students took one gram of quercetin per day. The students took one capsule with breakfast and the other 12 hours later.
CK = creatine kinase, LDH = lactate dehydrogenase, MB = myoglobin, IL-6 = interleukin-6.
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In itself, it is not surprising that a daily dose of one gram of quercetin protects muscles against degradation due to heavy training. After all, quercetin is a strong antioxidant and anti-inflammatory. What is remarkable in this study is that quercetin increases the production of IGF-1 and IGF-1 immediately after training.
IGF-1 and perhaps IGF-2 are anabolic hormones. Some of the IGF-1 and IGF-2 hormone in the body is made by muscle tissue. Production of both hormones increases after intense exercise. Quercetin seems to speed up this process.