Supplements

A couple weeks back, we looked at the muscle mass gains from creatine and glycogen loading. A study published in the journal Medicine & Science in Sports & Exercise tests the performance potential experienced cyclists might experience from loading and carbohydrate loading.
 
Eighteen well-trained male cyclists loaded with 20 grams of creatine for 5 days followed by 3 grams for 9 more days. Some received a placebo instead. Then they raced a 120 km time trial with 6 different sprints of 1 to 4 km performed every 10 km followed by an uphill ride to fatigue.
 
After this intervention, subjects consumed 6 or 12 grams of carbohydrates per kg of body weight before competing in 2 more trials. Creatine and moderate carbohydrate loading improved power, and the larger carbohydrate load improved power in the final 1 km sprint. Creatine and the 12 gram carb load increased powder during 4 km sprints. That could help competitors in their sprint to the finish line.
 
Nutrition

Most American adults only get about half the recommended daily amount of dietary fiber. A new study published in the journal Science provides interesting insight into how consuming dietary fiber might influence the bacterial environment of your digestive system.
 
Researchers found that dietary fiber produces a short-chain fatty acid called butyrate that signals cells in your intestines to maximize oxygen consumption. This action helps restrict levels of harmful bacteria.
 
Supplements

The Branched Chain Amino Acids (BCAAs) Leucine, Isoleucine and Valine are valued by all types of athletes. Studies have shown that these essential amino acids can help with muscle recovery, but findings vary. A review of controlled trials published in the journal Nutrition takes another look at the potential of BCAAs.
 
Analyzing 8 different studies, researchers came to the conclusion that BCAAs can reduce creatine kinase for up to 24 hours. Levels of this enzyme become elevated after exercise-induced muscle damage. This suggests that supplementing with BCAAs is better for exercise recovery than rest alone.