Nonexercise Estimation of V̇O2peak Using Seismocardiography in Female Subelite and Male Elite Football Players

IF 3
Mikkel Thunestvedt Hansen, Tue Rømer, Ronni Eg Sahl, Kristine Kjær Lange, Axel Illeris Poggi, Kristoffer Furbo, Jennie Brask Augsburg, Paweł Chmura, Bo Nielsen, Malte Nejst Larsen, Peter Krustrup, Jørn Wulff Helge
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Abstract

A novel method for estimating V̇O2peak using seismocardiography (SCG eV̇O2peak) at rest was developed some years ago, and this study investigates an updated version using data from a trained population. Forty five subelite female and Sixty seven elite male football players were tested and included in a cross-sectional accuracy comparison between SCG eV̇O2peak and V̇O2peak obtained from an incremental cardiopulmonary exercise test (CPET) performed on a treadmill. In addition, the ability of the method to detect changes over time was assessed by comparison of changes in V̇O2peak over 3 months (female and male, n = 60), 6 months (female, n = 17), and 1 year (male, n = 18) for CPET and SCG, respectively. No difference and a fair agreement were found between combined sex cross-sectional SCG eV̇O2peak and CPET V̇O2peak (bias ± 95% CI: −1.0 ± 0.9 mL·min−1·kg−1 and limits of agreement [95%]: ± 9.1 mL·min−1·kg−1), with similar agreement between sexes. The standard error of estimation and mean absolute percentage error were 4.8 mL·min−1·kg−1 and 7.4%, respectively. V̇O2peak was only increased over 6 months for females (CPET: 2.2 ± 1.1 mL·min−1·kg−1, SCG: 1.2 ± 1.1 mL·min−1·kg−1, and p < 0.05) with no difference between methods (p = 0.170). A correlation between ΔV̇O2peak for CPET and SCG was found for 1-year analyses (male, R2 = 0.62, and P < 0.05) but no other correlations were significant. The SCG method is accurate in estimating V̇O2peak in both subelite and elite football players, with fair agreement and low estimation errors. The SCG method was able to detect an association of 1-year changes but not for changes over shorter times; however, these results require more investigation due to small sample sizes.

Abstract Image

非运动状态下女、男优秀足球运动员的心电测量
几年前开发了一种利用地震心动图(SCG eV O2peak)估计静息时V o 2峰值的新方法,本研究利用训练人群的数据研究了一种更新的方法。研究人员对45名亚等位女性和67名优秀男性足球运动员进行了测试,并将其纳入了在跑步机上进行的增量心肺运动试验(CPET)中获得的SCG eV / o2峰值与V / o2峰值的横断面准确性比较。此外,通过比较CPET和SCG在3个月(女性和男性,n = 60)、6个月(女性,n = 17)和1年(男性,n = 18)期间的V²o2峰值变化来评估该方法检测随时间变化的能力。综合性别横断面SCG eV / o2峰值与CPET V / o2峰值无差异,且基本一致(偏差±95% CI:−1.0±0.9 mL·min−1·kg−1,一致限[95%]:±9.1 mL·min−1·kg−1),性别间的一致性相似。估计标准误差和平均绝对百分比误差分别为4.8 mL·min - 1·kg - 1和7.4%。在6个月内,女性的V / o2峰值仅升高(CPET: 2.2±1.1 mL·min - 1·kg - 1, SCG: 1.2±1.1 mL·min - 1·kg - 1, p < 0.05),两种方法之间无差异(p = 0.170)。在1年的分析中,CPET与SCG的ΔV o 2峰值存在相关性(男性,R2 = 0.62, P < 0.05),但其他相关性不显著。SCG方法对亚特级和精英足球运动员的V²o2峰值的估计都是准确的,一致性好,估计误差小。SCG方法能够检测到1年变化的关联,但不能检测到较短时间内的变化;然而,由于样本量小,这些结果需要更多的调查。
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