The Effects of Chronic Betaine Supplementation on Exercise Performance, Skeletal Muscle Oxygen Saturation and Associated Biochemical Parameters in Resistance Trained Men
Trepanowski, John F; Farney, Tyler M; McCarthy, Cameron G; Schilling, Brian K; Craig, Stuart A; Bloomer, Richard J
Journal of Strength and Conditioning Research December 2011 - Volume 25 - Issue 12 - pp 3461-3471
Link to Abstract