Institute of Sports Science, Julius-Maximilian University Würzburg, Judenbühlweg 11, 97082, Würzburg, Germany.
Integrative and Experimental Exercise Science and Training, Institute of Sport Science, University of Würzburg, Judenbühlweg 11, 97082, Würzburg, Germany.
BMC Public Health. 2022 Apr 1;22(1):634. doi: 10.1186/s12889-022-12999-z.
Physical activity (PA) guidelines acknowledge the health benefits of regular moderate-to-vigorous physical activity (MVPA) regardless of bout duration. However, little knowledge exists concerning the type and intensity distribution of structured and incidental lifestyle PA of students and office workers. The present study aimed to i) assess the duration and distribution of intensity of MVPAs during waking hours ≥50% of heart rate reserve (HRR), ii) to identify the type of PA through diary assessment, iii) to assign these activities into structured and lifestyle incidental PA, and iv) to compare this information between students and office workers.
Twenty-three healthy participants (11 students, 12 office workers) recorded heart rate (HR) with a wrist-worn HR monitor (Polar M600) and filled out a PA diary throughout seven consecutive days (i.e. ≥ 8 waking h/day). Relative HR zones were calculated, and PA diary information was coded using the Compendium of PA. We matched HR data with the reported PA and identified PA bouts during waking time ≥ 50% HRR concerning duration, HRR zone, type of PA, and assigned each activity to incidental and structured PA. Descriptive measures for time spend in different HRR zones and differences between students and office workers were calculated.
In total, we analyzed 276.894 s (76 h 54 min 54 s) of waking time in HRR zones ≥50% and identified 169 different types of PA. The participants spend 31.9 ± 27.1 min/day or 3.9 ± 3.2% of their waking time in zones of ≥50% HRR with no difference between students and office workers (p > 0.01). The proportion of assigned incidental lifestyle PA was 76.9 ± 22.5%.
The present study provides initial insights regarding the type, amount, and distribution of intensity of structured and incidental lifestyle PA ≥ 50% HRR. Findings show a substantial amount of incidental lifestyle PA during waking hours and display the importance of promoting a physically active lifestyle. Future research could employ ambulatory assessments with integrated electronic diaries to detect information on the type and context of MVPA during the day.
体力活动（PA）指南承认，无论运动持续时间如何，定期进行适度到剧烈的体力活动（MVPA）都有益于健康。然而，对于学生和上班族有规律的、习惯性的体力活动的类型和强度分布，我们知之甚少。本研究旨在：i）评估清醒时≥50%心率储备（HRR）的 MVPA 持续时间和强度分布，ii）通过日记评估确定 PA 的类型，iii）将这些活动分为有组织的和生活方式的偶发 PA，iv）比较学生和上班族之间的这些信息。
23 名健康参与者（11 名学生，12 名上班族）使用腕戴式心率监测器（Polar M600）记录心率，并在连续七天内（即≥8 小时/天）填写一份 PA 日记。计算相对 HR 区，并使用 PA 综合手册对 PA 日记信息进行编码。我们将 HR 数据与报告的 PA 相匹配，并确定清醒时间内≥50%HRR 的 PA 发作持续时间、HRR 区、PA 类型，并将每项活动分配到偶发性和结构性 PA。计算不同 HRR 区的时间分配和学生与上班族之间的差异。
总共分析了清醒时≥50%HRR 区的 276894 秒（76 小时 54 分钟 54 秒），并确定了 169 种不同类型的 PA。参与者每天花费 31.9±27.1 分钟或清醒时间的 3.9±3.2%在≥50%HRR 区，学生和上班族之间没有差异（p>0.01）。分配给偶发性生活方式 PA 的比例为 76.9±22.5%。
本研究首次提供了关于≥50%HRR 的有组织和偶发性生活方式 PA 的类型、数量和强度分布的见解。研究结果表明，在清醒时存在大量的偶发性生活方式 PA，并显示出促进积极生活方式的重要性。未来的研究可以使用带有集成电子日记的动态评估来检测白天中 MVPA 的类型和环境信息。
