COMPARATIVE ANALYSIS ON IMMUNITY OF VOLLEYBALL PLAYERS BEFORE AND AFTER TAKING GRAPE PROCYANIDINS SPORTS SUPPLEMENT

ABSTRACT Grape proanthocyanidin is a good health product, without side effects and excellent biological activity, but research in the field of sports tonic is still relatively slow. Currently, the technology of preparation and extraction of grape proanthocyanidins is relatively mature. This fact laid the groundwork for sports tonic proanthocyanidin research. This study first described the biological structure of proanthocyanidin in grapes, and built the immune system of volleyball players before and after taking proanthocyanidin sports supplements. He then analyzed the factors that influence immunity. The results show that the primary index subsystem is consistent with the total system in each phase, but there are still few differences over time, which can be divided into four phases: development, recession, recovery and stability; at the level of scientific training it is reasonable. Male and female athletes take exercise supplements containing proanthocyanidin at each level of training. Regarding humoral immunity and cellular immunity, there was no adverse reaction. This study may offer some reference value for other athletes before and after taking proanthocyanidin as a sports supplement.

摘要 葡萄原花青素（Grape proanthocyanidin）是一款优质保健食品，无副作用且生物活性优异，但在运动补剂领域的研究进展仍相对缓慢。当前，葡萄原花青素的制备与提取技术已较为成熟，这为原花青素运动补剂的相关研究奠定了坚实基础。本研究首先阐述了葡萄原花青素的生物学结构，并构建了排球运动员服用原花青素运动补剂前后的免疫系统动态变化体系，随后分析了影响机体免疫功能的相关因素。研究结果显示，核心指标子系统在各阶段均与总系统表现一致，但随时间推移仍存在细微差异，可将其划分为四个阶段：发展期、衰退期、恢复期与稳定期；该模型在科学训练层面具备合理性。男女运动员在各训练等级下服用含原花青素的运动补剂后，体液免疫与细胞免疫层面均未出现不良反应。本研究可为其他运动员服用原花青素运动补剂前后的相关实践与研究提供一定参考价值。