Dataset for: Associations Between Sleep Irregularity Behaviors and Athlete Engagement Among Chinese Athletes: The Serial Mediating Roles of Fatigue and Emotion Dysregulation

This dataset contains the de-identified raw questionnaire data underlying the manuscript entitled “Associations Between Sleep Irregularity Behaviors and Athlete Engagement Among Chinese Athletes: The Serial Mediating Roles of Fatigue and Emotion Dysregulation.” The study used a cross-sectional questionnaire design and included adult athletes from provincial- and municipal-level teams in China. Data were collected between 2025-09-15 and 2025-11-01 in six sports: table tennis, badminton, tennis, basketball, volleyball, and football. After data screening based on predefined quality criteria, 317 valid cases were retained for analysis. The dataset includes measures of sleep irregularity behaviors, fatigue, difficulties in emotion regulation, athlete engagement, and demographic characteristics. All data are anonymized. These data support the analyses reported in the associated manuscript, including descriptive statistics, correlation analysis, measurement model evaluation, and PLS-SEM with serial mediation testing.本数据集包含题为《中国运动员睡眠不规律行为与运动员投入度的关联：疲劳与情绪调节障碍的序列中介作用》的学术论文所依托的去标识化原始问卷数据。本研究采用横断面问卷研究设计，纳入来自中国省级及市级运动队的成年运动员作为研究对象。数据采集于2025年9月15日至2025年11月1日期间，覆盖乒乓球、羽毛球、网球、篮球、排球及足球六大运动项目。经基于预设质量标准的数据筛查后，最终保留317份有效案例用于后续分析。本数据集涵盖睡眠不规律行为、疲劳、情绪调节困难、运动员投入度及人口统计学特征等维度的测量数据。所有数据均已完成匿名化处理。本数据集可支撑关联论文中报告的各类分析，包括描述性统计、相关性分析、测量模型评估，以及带有序列中介检验的偏最小二乘结构方程模型（PLS-SEM）分析。