PHYSIOLOGICAL AND BIOCHEMICAL CHANGES IN ADOLESCENTS AFTER HIGH-INTENSITY TRAINING

ABSTRACT Introduction Exercise intensity can approach an individual’s maximum capacity rapidly. High-intensity exercise can improve aerobic capacity in obesity, overweight, heart disease, and diabetes. Knowledge of the physiological and biochemical changes in the post-workout period could provide safety indexes for a scientific basis. Objective To evaluate the immediate physiological and biochemical changes in adolescents submitted to high-intensity sports training. Methods The article selects several young athletes for research. They were randomly divided into two groups. Group A did high-intensity exercise, and group B did regular exercise. A statistical analysis of physiological and biochemical indicators of athletes before and after exercise is done. Results The vital capacity in the two groups was significantly different. However, no significant differences were found between the biochemical indicators collected before and after training. Conclusion High-intensity sport can improve cardiopulmonary function with low impact on biochemical indicators. These findings indicate high-intensity physical training can improve sports performance without compromising the health of adolescents. Evidence Level II; Therapeutic Studies - Outcome Research.

摘要
引言：运动强度可快速接近个体的最大运动能力。高强度运动能够改善肥胖、超重、心脏病及糖尿病患者的有氧代谢能力。了解运动后阶段的生理与生化变化，可为制定科学的运动安全评价指标提供依据。
研究目的：本研究旨在评估接受高强度运动训练的青少年在运动即刻的生理与生化变化。
研究方法：选取若干青年运动员作为研究对象，采用随机分组法将其分为两组：A组实施高强度运动，B组开展常规运动，随后对两组运动员运动前后的生理及生化指标进行统计学分析。
研究结果：两组受试者的肺活量存在显著差异；但训练前后采集的生化指标未表现出显著差异。
研究结论：高强度运动可改善心肺功能，且对生化指标的影响较小。本研究结果表明，高强度体能训练能够提升青少年的运动表现，且不会损害其身体健康。
证据等级：II级；治疗性研究——结局研究。