meteorr masz jakieś badania o efektywności rybozy w porcjach 2-5g dziennie? (oczywiście do kreatyny)
specjalnie dla Ciebie metuś:
Effects of oral D-ribose supplementation on anaerobic capacity and selected metabolic markers in healthy males.
Oral D-ribose supplementation has been reported to increase adenine nucleotide synthesis and exercise capacity in certain clinical populations. Theoretically, increasing adenine nucleotide availability may enhance high intensity exercise capacity. This study evaluated the potential ergogenic value of D-ribose supplementation on repetitive high-intensity exercise capacity in 19 trained males. Subjects were familiarized to the testing protocol and performed two practice-testing trials before pre-supplementation testing. Each test involved warming up for 5 min on a cycle ergometer and then performing two 30-s Wingate anaerobic sprint tests on a computerized cycle ergometer separated by 3 min of rest recovery. In the pre- and post-supplementation trials, blood samples were obtained at rest, immediately following the first and second sprints, and following 5 min of recovery from exercise. Subjects were then matched according to body mass and anaerobic capacity and assigned to ingest, in a randomized and double blind manner, capsules containing either 5 g of a dextrose placebo (P) or D-ribose (R) twice daily (10 g/d) for 5 d. Subjects then performed post-supplementation tests on the 6th day. Data were analyzed by ANOVA for repeated measures. Results revealed a significant interaction (p =.04) in total work output. Post hoc analysis revealed that work significantly declined (-18 +/- 51 J) during the second post-supplementation sprint in the P group while being maintained in the R group (-0.0 +/- 31 J). No significant interactions were observed in peak power, average power, torque, fatigue index, lactate, ammonia, glucose, or uric acid. Results indicate that oral ribose supplementation (10 g/d for 5 d) does not affect anaerobic exercise capacity or metabolic markers in trained subjects as evaluated in this study.
żródło - Am J Physiol Regul Integr Comp Physiol. 2004 Jan;286(1):R182-8.
sprawdzone na biegaczach, spore dawki:
Effects of ribose supplementation on repeated sprint performance in men.
This study used a randomized, placebo-controlled, crossover design to evaluate the effects of oral ribose supplementation on short-term anaerobic performance. After familiarization, subjects performed 2 bouts of repeated cycle sprint exercise (six 10-second sprints with 60-second rest periods between sprints) in a single day. After the second exercise, bout subjects ingested 32 g of ribose or cellulose (4 x 8-g doses) during the next 36 hours. After supplementation, subjects returned to the laboratory to perform a single bout of cycle sprinting (as described above). After a 5-day washout period, subjects repeated the protocol, receiving the opposite supplement treatment. Ribose supplementation lead to statistically significant increases in mean power and peak power in sprint 2 (10.9 and 6.6%, respectively) and higher (although not significant) absolute values in sprints 1, 3, and 4. In conclusion, ribose supplementation did not show reproducible increases in performance across all 6 sprints. Therefore, within the framework of this investigation, it appears that ribose supplementation does not have a consistent or substantial effect on anaerobic cycle sprinting.
źródło - J Strength Cond Res. 2003 Feb;17(1):47-52.
badanie odnośnie suplementacji kreatyną + małą ilością dekstrozy + rybozy + glutaminy
Effects of effervescent
creatine, ribose, and glutamine supplementation on muscular strength, muscular endurance, and body composition.
The purpose of this study was to examine the effects of a combination of effervescent creatine, ribose, and glutamine on muscular strength (MS), muscular endurance (ME) and body composition (BC) in resistance-trained men. Subjects were 28 men (age: 22.3 +/- 1.7 years; weight: 85.8 +/- 12.1 kg; height: 1.8 +/- 0.1 m) who had 2 or more years of resistance-training experience. A double blind, randomized trial was completed involving supplementation or placebo control and a progressive resistance-training program for 8 weeks. Dependent measures were assessed at baseline and after 8 weeks of resistance training. Both groups significantly improved MS and ME while the supplement group significantly increased body weight and fat-free mass. Control decreased body fat and increased fat-free mass. This study demonstrated that the supplement group did not enhance MS, ME, or BC significantly more than control after an 8-week resistance-training program.
jak widzisz w żadnym wypadku ryboza nie przyniosła efektów na jakie czekają ludzie, nawet przy dawkowaniu 20-30g na dzień. Jedyne efkety to tymczasowe zwiększenie energii, a w ogólnym cyklu jest malo znaczące. TO tyle