标准化口头鼓励协议在健康个体的增量跑步机测试期间对峰值氧气吸收的影响:一个随机交叉试验
Bas Van Hooren1, Pleun Van Der Lee1, Guy Plasqui1
1Department of Nutrition and Movement Sciences, NUTRIM, Institute for Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
在运动测试期间,标准化的口头鼓励显著增加了峰值氧气吸收 (V·O2峰) 和峰值呼吸交换比率 (RER峰). 这种对V̇O2peak的影响并没有受到个人动机水平的调节.
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
- 心血管健康 呼吸系统健康
背景情况:
- 氧气吸收峰值 (V·O2峰) 是一个关键的健康和健身指标.
- 之前的研究指出,口头鼓励对V̇O2peak的影响,但缺乏协议细节.
- 动机在调节鼓励对V̇O2peak的影响中的作用尚不清楚.
研究的目的:
- 在增量跑步机测试期间开发和测试标准化的口头鼓励协议.
- 评估该协议对VO2峰值,疲劳时间 (TTE),心率峰值 (HR峰值) 和呼吸交换比率峰值 (RER峰值) 的影响.
- 调查运动动机是否能缓和口头鼓励对V̇O2peak的影响.
主要方法:
- 24名健康志愿者完成了两个增量跑步机测试,分隔一周.
- 在使用标准化协议的测试中,只有在其中一项测试中进行了口头鼓励.
- 运动动机的评估是使用运动问卷-2 (BREQ-2) 中的行为规则进行的.
主要成果:
- 在口头鼓励的情况下,V̇O2peak显着更高 (Δ 2.10 mL/kg/min,p < 0.001).
- 随着鼓励,RER峰值也显着更高 (Δ 2%,p = 0.042).
- 条件之间没有观察到HR峰值或TTE的显著差异. 运动动机与V̇O2peak的变化有着微弱的,不显著的关联.
结论:
- 一个标准化的口头鼓励协议在增量运动测试期间有效地提高了生理结果.
- 观察到的VO2peak和RERpeak的改善表明,鼓励可以优化绩效指标.
- 个人动机水平并没有显著改变口头鼓励对V̇O2peak的积极影响.
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