The effect of jujube extract supplementation during intense endurance training on endurance performance in male rats during puberty

Nowadays, herbal supplementation has attracted many attentions to enhance endurance performance. Many children and adolescents participate in organized strenuous exercise training. However, there is little known about the effect of natural supplements on endurance performance during pre-maturation period. This study aimed to investigate the effect of jujube extract supplementation during intense endurance training on endurance performance.Thirty-two male Wistar rats (۲۲ d, ۶۰ ± ۶۳ g) after one week of familiarization, were divided randomly into four groups: control, intense endurance training, intense endurance training + placebo, and Intense endurance training + jujube gavage. Endurance training protocol included four weeks (five sessions/w) treadmill running. Training protocol included running at ۱۰-۱۸ m/min for ۱۰ to ۳۰ min at the first week, and reached to ۳۰ m/min (for ۵۵-۶۰ min) at the last week. Jujube diluted in distilled water and was administered by oral gavage at ۶۰۰ mg/ kg after everyday training. Following four weeks of training protocol, ۴۸ hours after the last training session, performance was measured by the exhaustive running test. Difference among groups were analyzed using one-way analysis of variance (ANOVA); and Tukey’s post hoc tests for pairwise comparisons. The statistical significance was set at P < ۰.۰۵.ANOVA showed significant difference among groups (F۳,۲۸= ۱۳.۷۸۴, p<۰.۰۰۱, η۲= ۰.۵۹۶). Pairwise comparison demonstrated that the endurance performance in training + jujube was higher than control and training + placebo groups (P = ۰.۰۰۱).The use of jujube extract as a supplement during intense endurance training improves endurance performance in immature male rats during puberty. This partly can be explained by the contents of the jujube that includes carbohydrates, fibers, proteins, fats, essential vitamins and minerals.

کلیدواژه ها:

Intense Endurance Training ، Jujube ، endurance performance