While recent studies have shown that wearable sensing technology has the potential to facilitate the evaluation of physical fatigue, the reliability and validity of such measurements during construction tasks have not been reported. Thus, the primary objective of the current study is to establish absolute and relative reliability of textile-based wearable sensors to monitor physical fatigue during bar bending and fixing construction tasks. The secondary objective is to establish correlations between physiological parameters and subjective fatigue scores or blood lactate levels in order to demonstrate the convergent validity. Physiological parameters such as heart rate, breathing rate, and skin temperature were evaluated using textile-based wearable sensors. The test-retest reliability (intra-class correlation coefficient - ICC) values of the measured resting and working heart rate (ICC = 0.73 and 0.85), breathing rate (ICC = 0.78 and 0.82), and skin temperature (ICC = 0.68 and 0.77) were moderate to good and good, respectively. There were moderate to excellent correlations (r-values ranging from 0.414 to 0.940) between physiological parameters and subjective fatigue scores, although there were no correlations between any physiological parameters and blood lactate levels. Both laboratory and field data substantiated that the wearable sensing system has the potential to be a reliable noninvasive device to monitor physical fatigue (especially among workers at risk of sustaining fatigue-related injury due to advanced age, poor health, or job nature. However, because the current study validated the system exclusively in bar benders, additional research is necessary to confirm the findings in other construction workers.

虽然最近的研究表明，可穿戴传感技术有可能促进身体疲劳的评估，但尚未报告在施工任务期间此类测量的可靠性和有效性。因此，当前研究的主要目标是建立基于纺织品的可穿戴传感器的绝对和相对可靠性，以监测钢筋弯曲和固定施工任务期间的身体疲劳。次要目标是建立生理参数与主观疲劳评分或血乳酸水平之间的相关性，以证明收敛效度。使用基于纺织品的可穿戴传感器评估生理参数，例如心率、呼吸频率和皮肤温度。测量的静息和工作心率（ICC = 0.73 和 0.85）、呼吸频率（ICC = 0.78 和 0.82）和皮肤温度（ICC = 0.68 和 0.77）的重测信度（类内相关系数 - ICC）值) 分别为中等至良好和良好。生理参数与主观疲劳评分之间存在中等至极好的相关性（r 值范围为 0.414 至 0.940），尽管任何生理参数与血乳酸水平之间没有相关性。实验室和现场数据都证实，可穿戴传感系统有可能成为一种可靠的无创设备，用于监测身体疲劳（尤其是在因高龄、健康状况不佳或工作性质而有遭受疲劳相关伤害风险的工人中。然而，