title: Effects of ribose supplementation prior to and during intense exercise on anaerobic capacity and metabolic markers.
abstract: This study examined whether ribose supplementation before and during intense anaerobic exercise impacts anaerobic capacity and metabolic markers. Twelve moderately trained male cyclists (22.3 +/- 2.2 y; 181 +/- 6 cm, 74.8 +/- 9 kg) participated in the study. Subjects were familiarized and fasted for 8 h after standardizing nutritional intake. In a double blind and crossover manner subjects ingested either a 150 mL placebo or ribose (3 g ribose + 150 microg folate). Subjects rested for 25 min and completed 5 x 30 s anaerobic capacity tests with 3 min passive rest. Six capillary blood samples were taken prior to and after sprints for adenine nucleotide breakdown determination. The experiment was repeated 1 wk later with alternative drink. Data were analyzed by repeated measures ANOVA. No significant interactions were observed for any performance or blood variables. D-ribose supplementation has no impact on anaerobic exercise capacity and metabolic markers after high-intensity cycling exercise.
authors.affiliation: Exercise and Sport Nutrition Laboratory, Center for Exercise, Nutrition and Preventive Health Research, Dept of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798-7313, USA.
authors.forename: C
authors.initials: C
authors.lastname: Kerksick
authors.forename: C
authors.initials: C
authors.lastname: Rasmussen
authors.forename: R
authors.initials: R
authors.lastname: Bowden
authors.forename: B
authors.initials: B
authors.lastname: Leutholtz
authors.forename: T
authors.initials: T
authors.lastname: Harvey
authors.forename: C
authors.initials: C
authors.lastname: Earnest
authors.forename: M
authors.initials: M
authors.lastname: Greenwood
authors.forename: A
authors.initials: A
authors.lastname: Almada
authors.forename: R
authors.initials: R
authors.lastname: Kreider
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000641:Ammonia / Q000097:blood; D015308:Anaerobic Threshold / Q000502:physiology*; D000704:Analysis of Variance; D019540:Area Under Curve; D001642:Bicycling / Q000502:physiology*; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000187:drug effects / Q000378:metabolism; D018592:Cross-Over Studies; D019587:Dietary Supplements; D004311:Double-Blind Method; D005080:Exercise Test; D006801:Humans; D019344:Lactic Acid / Q000097:blood* / Q000378:metabolism; D008297:Male; D010084:Oxidation-Reduction; D010101:Oxygen Consumption / Q000187:drug effects / Q000502:physiology; D010807:Physical Endurance / Q000187:drug effects* / Q000502:physiology; D012266:Ribose / Q000008:administration & dosage*; D013997:Time Factors
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D019344:Lactic Acid; D012266:Ribose; D000641:Ammonia