World J. Sport Sci. 2012, 7, 41–47.
Effect of noni supplementation on the serum creatine kinase (CK) levels of athletes.
Anugweje K.C., Okonko I.O.
Ingestion of 100 mL of Tahitian Noni Juice twice daily increased endurance (time-to-fatigue), improved antioxidant status, and reduce serum creatine kinase (a marker of muscle damage) in 23 highly-trained athletes. (available online at https://pdfs.semanticscholar.org/6da8/450e1029dcd0637b36bfdd197db52ca15ece.pdf).