在增量运动期间的精神炼是否会改变超重个体的基质氧化和心肺呼吸结果?
Samira Pourmirzaei Kouhbanani1, Seyed Kamaledin Setarehdan2, Rana Fayazmilani1
1Department of Biological Sciences in Sport, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran.
运动期间的精神炼显著降低了超重成年人的最大心率,氧气吸收和脂肪氧化. 这种增加的精神工作量会降低运动能力和表现.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 代谢健康 代谢健康
背景情况:
- 对超重个体来说,大脑健康是一个日益关注的问题.
- 了解精神劳动 (ME) 对运动期间生理反应的影响对这一群体至关重要.
研究的目的:
- 为了研究ME如何影响基质氧化和心肺呼吸结果,在超重的成年人进行增量运动测试.
- 为了确定认知负载对运动表现和代谢反应的影响.
主要方法:
- 17名超重的成年人接受了循环人体计上的增量运动测试.
- 参与者完成了两次测试:一次与Stroop任务 (ME) 一次没有.
- 间接热量计测量了能量消耗,基质氧化,最大心率 (HRmax),最大氧气吸收 (VO2max),最大脂肪氧化 (MFO) 和Fatmax. 美国宇航局-TLX得分评估了心理工作负载.
主要成果:
- ME在任何运动阶段都没有改变能量消耗或基质氧化.
- ME显著降低了HRmax,VO2max和MFO (p < 0.01).
- 精神工作量,以增加的NASA-TLX得分表明,在ME中更高,而Fatmax保持不变.
结论:
- 在超重的成年人中,精神炼在增量运动期间会降低心肺呼吸能力和最大脂肪氧化.
- 增加的认知负载会损害运动表现,阻止个人达到他们以前的最大炼水平.
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