Morais Jorge E, Bragada José A, Magalhães Pedro M, Marinho Daniel A
Department of Sports Sciences, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal.
Research Centre for Active Living and Wellbeing (LiveWell), Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal.
J Funct Morphol Kinesiol. 2024 Aug 17;9(3):138. doi: 10.3390/jfmk9030138.
The power output in cycling is one of the most important factors for athletes and coaches. The cycling community has several commercial gears that can be used. One of the most used is the TACX Neo 2T (TN2T) smart trainer. The objective of this study was to investigate the metrological proprieties of the TN2T (accuracy and reliability), as well as its agreement with the Garmin Vector 3 (GV3) pedals at different power stages. The sample consisted of ten regional-level cyclists with a mean age of 45.6 ± 6.4 years, who regularly participated in regional and national competitions. Residual relative differences were found between the two devices. Both devices showed good reliability with coefficients of variation and intraclass correlation coefficients ranging from 0.03% to 0.15% and from 0.731 to 0.968, respectively. Independent samples -test comparison between devices showed no significant differences in all power stages ( > 0.05). Bland-Altman plots showed that more than 80% of the plots were within the 95% confidence intervals in all power stages. The present data showed that there were non-significant differences between the two devices at power stages between 100 W and 270 W, with a strong agreement. Therefore, they can be used simultaneously.
骑行中的功率输出是运动员和教练最重要的因素之一。自行车运动领域有几种可使用的商用设备。其中使用最广泛的一种是TACX Neo 2T（TN2T）智能训练器。本研究的目的是调查TN2T的计量特性（准确性和可靠性），以及它在不同功率阶段与佳明Vector 3（GV3）踏板的一致性。样本包括10名地区级自行车运动员，平均年龄为45.6±6.4岁，他们经常参加地区和全国性比赛。在这两种设备之间发现了残余相对差异。两种设备均显示出良好的可靠性，变异系数和组内相关系数分别在0.03%至0.15%和0.731至0.968之间。设备之间的独立样本t检验比较显示，在所有功率阶段均无显著差异（P>0.05）。布兰德-奥特曼图显示，在所有功率阶段，超过80%的图位于95%置信区间内。目前的数据表明，在100W至270W的功率阶段，这两种设备之间无显著差异，一致性很强。因此，它们可以同时使用。
