Fatigue and quality of life among professional ballroom dancers in Brazil

Abstract The scope of this study was to analyze the relationship between quality of life, fatigue and injuries among professional Brazilian ballroom dancers. A total of 320 professionals from the five regions of Brazil participated, and the data were collected through a self-administered online questionnaire concerning general information, WHOQOL-bref, Yoshitake Fatigue Questionnaire and Injury Identification in Dancers Questionnaire. For data analysis, descriptive statistics were used, followed by inferential analysis and the Multiple Linear Regression test. The results show that greater fatigue is associated with a negative quality of life, revealing that, for each additional increment in total fatigue, the quality of life is expected to decrease by 0.218 points in the physical domain; 0.226 points in the psychological domain; 0.420 points in the social domain; and 0.304 points in the environmental domain. In contrast, the incidence and intensity of injuries were not associated with quality of life. The conclusion drawn is that the context of professional ballroom dance can influence both the presence of fatigue and the quality of life. It is suggested that health professionals working with these dancers perform multifactorial interventions in order to reduce fatigue, attenuating its effects on quality of life.摘要 本研究旨在探究巴西专业国标舞舞者的生活质量、疲劳与运动损伤三者间的关联。本次研究共招募来自巴西五大区域的320名专业舞者，数据通过自填式在线问卷收集，问卷内容包含一般人口学信息、世界卫生组织生活质量测定简表（WHOQOL-bref）、吉武疲劳问卷（Yoshitake Fatigue Questionnaire）以及舞者损伤识别问卷（Injury Identification in Dancers Questionnaire）。数据分析环节先采用描述性统计方法，随后开展推断性分析与多元线性回归检验。研究结果表明，疲劳程度越高与生活质量越低呈显著负相关：总疲劳每增加1个单位，生理领域生活质量评分预计降低0.218分，心理领域降低0.226分，社会关系领域降低0.420分，环境领域降低0.304分。与之相对，运动损伤的发生率与严重程度均未与生活质量产生显著关联。本研究得出结论：专业国标舞的从业环境可同时影响疲劳的发生与生活质量水平。据此建议，为该类舞者提供服务的医疗从业者应实施多维度干预方案，以减轻疲劳程度，缓解其对生活质量的负面影响。