In this pilot study, we investigated the effect of spatone, a naturally occurring mineral water supplement, on endurance capacity and inflammatory cytokines in wrestlers undergoing a rapid weight control program. Nine amateur university wrestlers participated and were randomly divided into placebo- and spatone-treated groups. The study used a crossover design, including a 4-week washout period. The rapid weight control program was focused on body weight loss, while maintaining their athletic performance (muscular strength and cardiovascular endurance). The initial body weight was 87.19 ± 2.45 kg in the spatone-treated group and 86.60 ± 3.01 kg in the placebo group. After the rapid weight control program, the body weight decreased to 83.56 ± 2.71 kg (4.21% decrease) in the spatone-treated group and 82.95 ± 2.97 kg (4.16% decrease) in the placebo group. However, there were no significant differences in body weight or body composition between placebo- and spatone-treated groups. Endurance capacity improved significantly in terms of VOmax and lactate accumulation after spatone supplement. The interleukin (IL)-10, tumor necrosis factor (TNF)-alpha, and IL-6 concentrations were not altered with spatone treatment or placebo in the rapid weight-loss condition; however, a positive relationship (R = 0.643, P = .023) was observed between the change in IL-6 and VOmax. Thus, our results are consistent with prior studies in that spatone supplementation could protect against iron loss induced by intense training, considering that spatone affects the modulation of inflammatory cytokines and exercise capacity. These preliminary results serve to facilitate the planning for the nutritional application of spatone with their exercise program for wrestlers.

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