Rhodiola seems to have ergogenic properties in addition to its adaptogen properties. In studies looking at strength training, rhodiola increased strength and power when taken just before training.[1] Supplementing with rhodiola also decreased the rate of perceived exertion (RPE) in several studies.[2][3][4] In endurance training, some studies have shown that rhodiola can lower fatigue and improve speed.[5][4] While these results are promising, more studies need to be done before rhodiola can be recommended at specific dosages for exercise performance.