The effects of HMB free acid supplementation and cold water immersion (CWI) on immune response after intense resistance training was studied in forty male subjects. Supplementation with HMB free acid reduced the pro-inflammatory cytokine TNF- immediately post exercise and its receptor expression (TNFR1) during the recovery period compared with placebo or CWI. The researchers concluded that HMB free acid may attenuate the immune response to resistance exercise which may then lead to reduced recovery time.


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