This study in resistance-trained college-aged men measured recovery from 3 consecutive days of intense resistance training.  The training regimen consisted of heavy resistance raining on day one and metabolic resistance training on days 2 and 3. HMB addition to the whey protein supplemented in the study improved recovery by decreasing creatine kinase levels, decreasing inflammatory IL-6, and decreasing pain assessment during recovery.  Vertical jump power during recovery was also increased compared to those supplemented with whey protein alone. The authors concluded that the addition of HMB to whey protein enhanced the recovery benefits and athletic performance.