Ratings of perceived exertion (RPE) from a submaximal 20-m shuttle-run test accurately predict children's VO_2peak, but when should we stop the test?

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-09-30 DOI:10.1007/s00421-024-05618-9

Daiki Kasai, Margarita D Tsiros, Roger Eston, Gaynor Parfitt

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引用次数: 0

Abstract

Purpose: The purpose of the study was to explore the validity, test-retest reliability and affective responses of a submaximal 20-m shuttle-run test (20mSRT) stopped at 6 on the Eston-Parfitt (EP) scale. The secondary aim was to examine and compare two submaximal 20mSRT protocols with different RPE end points (EP6 vs. EP7) using previously published data.

Methods: Twenty-five children (16 boys; 13.4 ± 1.0 years; 162.1 ± 8.7 cm; 49.1 ± 6.6 kg) completed three exercise tests (graded exercise test [GXT], 2 submaximal 20mSRT). The EP scale and Feeling scale were used to measure RPE and affect, respectively. The two submaximal 20mSRTs were stopped after participants reported EP6. Individual speed-RPE relationships from the submaximal 20mSRTs were linearly regressed to predict peak speed and then used to estimate VO_2peak. Previously published data (n = 25) used comparable methods, except that the participants stopped at EP7.

Results: In the EP6 protocol, a two-factor repeated measures ANOVA revealed non-significant Test and Sex main effects (p > 0.05). Reliability analysis revealed intraclass correlation coefficient of ~ 0.7 (95%CI [0.432,0.867], p < 0.001) between the submaximal 20mSRTs. Significant differences in end-test affect between the GXT and submaximal 20mSRTs were found (p < 0.001), with GXT more negative. ANOVA revealed no significant differences in end-test affect between EP6 and EP7 protocols; however, frequency count analysis revealed EP6 to result in more positive end-test affect.

Conclusion: Submaximal 20mSRT utilising RPE may offer valid predictions in VO_2peak while minimising negative affect. Test end points of EP6 and EP7 both offer valid predictions in VO_2peak. EP6 may be more beneficial in avoiding negative affect, even though a reduction in test-retest reliability was observed.

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亚极限 20 米往返跑测试中的感知用力评分（RPE）能准确预测儿童的 VO2 峰值，但我们应该何时停止测试？

目的：本研究旨在探讨在埃斯顿-帕菲特（Eston-Parfitt，EP）量表上以 6 分为终点的亚极限 20 米往返跑测试（20mSRT）的有效性、测试-再测可靠性和情感反应。次要目的是利用以前公布的数据，研究和比较两种具有不同 RPE 终点（EP6 与 EP7）的亚极限 20mSRT 方案：25 名儿童（16 名男孩；13.4 ± 1.0 岁；162.1 ± 8.7 厘米；49.1 ± 6.6 千克）完成了三项运动测试（分级运动测试 [GXT]、两项亚极限 20mSRT）。EP 量表和 Feeling 量表分别用于测量 RPE 和情绪。两项亚极限 20mSRT 在参与者报告 EP6 后停止。对亚极限 20mSRT 的个人速度-RPE 关系进行线性回归，以预测峰值速度，然后用于估算 VO2 峰值。之前发表的数据（n = 25）使用了类似的方法，只是参与者在 EP7 时停止：在 EP6 方案中，双因素重复测量方差分析显示测试和性别主效应不显著（p > 0.05）。可靠性分析表明，类内相关系数约为 0.7（95%CI [0.432,0.867]，p）：利用 RPE 进行亚极限 20mSRT 可有效预测 VO2 峰值，同时将负面影响降至最低。EP6 和 EP7 测试终点都能有效预测 VO2 峰值。EP6 在避免负面影响方面可能更有益处，尽管测试重复可靠性有所降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464