607. Metabolism and Nutrition - supplements, drugs and ergogenic aids Scientific Abstract

2759 - D-ribose Supplementation On Delayed Onset Muscle Soreness After Plyometric Exercise In College Students: A Randomized Controlled Trial.

Session Type
Free Communication/Poster
Session Name
E-33 - Nutritional Ergogenic Aids
Session Category Text
Metabolism and Nutrition
Disclosures
 J. Qiu: None.

Abstract

PURPOSE: This study was aimed to investigate the effect of D-ribose supplementation on delayed onset muscle soreness (DOMS) induced by plyometric exercise.
METHODS: 21 male untrained college students (age 21±2 yr, weight 75.5±11.2 kg) performed a lower-limb plyometric exercise protocol (7 sets of 20 frog jumps with 90s-rest between each sets) to induce DOMS. Muscle soreness were measured with Visual Analogue Scale before and 24, 48 hours after exercise. Subjects were then randomly divided into the D-ribose group (RIB, n=11) and the placebo group (PLA, n=10) according to BMI and muscle soreness. After a 14-day washout period, both groups performed the same plyometric exercise protocol. The RIB ingested 200ml solution containing 15g D-ribose 1 hour before and 1, 12, 24, and 36 hours after exercise, while the PLA ingested 200 ml calorically equivalent solution containing Sorbitol and β-cyclodextrin. Muscle soreness were collected and Isokinetic muscle strength tests were performed and venous blood was collected before and 24, 48 hours after exercise.
RESULTS: In RIB, muscle soreness at 24h and 48h after the second exercise session were lower than those after the first exercise session (Fig 1). In the second exercise session, muscle soreness and some blood indicators including CK, LDH, MB and MDA in RIB were lower than those in PLA at 24h after exercise (MDH, p<.05; CK, LDH ,MB, p<.01). At 48h after exercise, LDH (176.19±65.12 vs. 304.76±45.51 U/L) and MDA(3.76±1.18 vs. 6.89±1.42 U/m) in RIB were still significantly lower than that in PLA (p<.01). There was no difference in results of isokinetic muscle strength and some oxidative stress indicators including superoxide dismutase and total antioxidant capacity between the two groups 24h and 48h after exercise.
CONCLUSIONS: D-ribose supplementation reduces muscle soreness and makes recovery of muscle damage and inhibit the formation of lipid peroxides after plyometric exercise.Figure 1. Muscle soreness in different groups
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