心率变化非线性指数的可靠性和有效性,以确定强度值
Noemí Sempere-Ruiz1,2, José Manuel Sarabia1,2, Sabina Baladzhaeva1,2
1Department of Sport Sciences, Sport Research Centre, Miguel Hernandez University, Elche, Spain.
Frontiers in physiology
|February 20, 2024
概括
使用DFA a1的心率变化 (HRV) 是确定运动强度值的可靠和有效方法,特别是在输出功率 (PO) 中测量时. 这种方法为个性化的运动处方和监测提供了一个有希望的替代方案.
科学领域:
- 运动生理学 运动生理学
- 体育科学 运动科学 运动科学
- 运动中的生物标志物
背景情况:
- 准确的运动强度分布对于个性化训练至关重要.
- 确定运动强度值的传统方法存在局限性.
- 心率变化率 (HRV) 和其指数 DFA a1 显示为运动强度值的生物标志物的潜力.
研究的目的:
- 评估DFA a1指数用于确定运动强度值的可靠性和有效性.
- 为了比较DFA a1衍生的值与已确定的通风和乳酸值.
- 在增量自行车测试中评估未经训练的健康成年人中DFA a1的性能.
主要方法:
- 16名未经训练的健康成年人完成了两个增量自行车测试.
- 确定了通风值 (VT1,VT2) 和乳酸值 (LT).
- 使用0.75和0.5.5的DFA a1值确定了心率变化值 (HRVT1,HRVT2).
- 可靠性和协议分析包括ICC,配对t测试和Bland-Altman情节.
主要成果:
- 来自DFA a1的HRV值显示出高可靠性,特别是在输出功率 (PO) 中测量时.
- HRVT1显示强烈一致的乳酸值为2.5 mmol/L (LA 2.5) 在PO.
- HRVT2与PO的第二个通风门 (VT2) 显著一致.
结论:
- 使用特定值 (0.75和0.5) 的DFA a1方法是确定HRV值的可靠和有效工具.
- 这种方法在未经训练的个体中应用到功率输出 (PO) 测量时特别有效.
- DFA a1为运动强度评估和个性化提供了一个可行的替代方案.
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