在从高强度间歇训练中恢复时限制碳水化合物,在随后的运动中增强脂肪氧化,并且在与咖啡因结合时不会影响表现
Camilla Soegaard1, Simon Riis1, Jesper Friis Mortensen1
1Department for Public Health, Aarhus University, Aarhus, Denmark.
碳水化合物限制会增加女性运动员的脂肪氧化,特别是与咖啡因结合时. 咖啡因还可以提高时间试验的表现,尽管碳水化合物可用性较低,减轻运动能力的下降.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 营养生物化学 营养生物化学
背景情况:
- 碳水化合物限制可能会对女性运动员的耐力表现产生负面影响.
- 补充咖啡因可以抵消与低碳水化合物可用性相关的性能下降.
研究的目的:
- 调查碳水化合物限制是否提高训练有素的女性最大脂肪氧化 (MFO) 率.
- 为了检查咖啡因在碳水化合物受限条件下对计时表现的影响.
主要方法:
- 随机,双盲,安慰剂控制,交叉研究与17名女性耐力运动员.
- 三个条件:碳水化合物限制 (FASTED),碳水化合物限制与咖啡因 (FASTED+CAFF) 和碳水化合物补充 (FED).
- 在高强度间歇训练 (HIT) 后评估了MFO速率和20分钟的计时表现.
主要成果:
- 与FED条件相比,在FASTED+CAFF条件下,最大脂肪氧化率明显高于FED条件.
- 与FASTED和FED条件相比,在FASTED+CAFF条件下,时间试验输出功率显著更高.
- 在碳水化合物限制期间摄入咖啡因改善了运动能力.
结论:
- 运动后的碳水化合物限制可以提高MFO速率,尤其是在运动前补充咖啡因时.
- 在碳水化合物受限状态下摄入咖啡因可以抵消减小的运动能力.
- 研究结果表明,碳水化合物限制和咖啡因对女性运动员脂肪代谢和表现产生协同作用.
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