Graduate Program in Movement Sciences, Physical Education Department, School of Technology and Sciences, São Paulo State University (Unesp), Presidente Prudente 19060-900, Brazil.
Center of Clinical and Epidemiological Research, University Hospital, University of Sao Paulo, São Paulo 05403-000, Brazil.
Int J Environ Res Public Health. 2022 Dec 7;19(24):16389. doi: 10.3390/ijerph192416389.
Extended periods of time on screen devices and sitting are the main activities that characterize sedentary behavior (SB), which negatively impacts the quality of life. This negative influence was demonstrated mainly by cross-sectional studies performed in high-income countries in which the effects of screen time on health-related quality of life (HRQoL) is not considered. Thus, we analyzed the association between the different domains of SB (i.e., subdomains of screen time-television, computer, cellphone) and the HRQoL in adults that live in Brazil during two years of follow-up. The sample included 331 adults. Subdomains of screen time (i.e., watching television, using computers, and cellphones) and of HRQoL (i.e., physical functioning, role-physical, bodily pain, general health, vitality, social functioning, role-emotional, mental health, and current health perception) were assessed by a structured questionnaire and SF-36, respectively. Our results indicate a significant increase in screen time during the two years of follow-up. Linear regression models indicated that although domains of SB were differently associated with HRQoL, in general, screen time was negatively associated with social functioning and positively associated with physical functioning during locomotion and activities of daily living (ADL), role-physical (i.e., physical issues during work and ADLs), and role-emotional (i.e., emotional issues during work and ADLs) after the two-year follow-up. In conclusion, screen time may positively or negatively influence some domains of HRQoL in adults.
长时间使用屏幕设备和久坐是久坐行为（SB）的主要特征，这会降低生活质量。这种负面影响主要是通过在高收入国家进行的横断面研究来证明的，这些研究没有考虑屏幕时间对健康相关生活质量（HRQoL）的影响。因此，我们分析了 SB 的不同领域（即屏幕时间的子领域-电视、计算机、手机）与巴西成年人在两年随访期间的 HRQoL 之间的关联。该样本包括 331 名成年人。通过结构化问卷评估了屏幕时间的子领域（即看电视、使用计算机和手机）和 HRQoL（即身体功能、身体角色、身体疼痛、一般健康、活力、社会功能、情绪角色、心理健康和当前健康感知）。我们的结果表明，在两年的随访期间，屏幕时间显著增加。线性回归模型表明，尽管 SB 的各个领域与 HRQoL 有不同的关联，但总的来说，屏幕时间与社会功能呈负相关，与移动和日常生活活动（ADL）中的身体功能、身体角色（即工作和 ADL 中的身体问题）和情绪角色（即工作和 ADL 中的情绪问题）呈正相关。两年随访后。总之，屏幕时间可能会对成年人的某些 HRQoL 领域产生积极或消极的影响。
