Scholarlink

Background <p>Work participation is a major element of active aging in aging societies. However, the impact of work on physical activity and rest-activity rhythm has not been well-studied in the older population.</p> Aims <p>To investigate the association of work status with the distribution of physical activity and rest-activity rhythm.</p> Methods <p>The study recruited 35 working and 72 non-working community-dwelling adults older than 60 years old. Biological rhythm was evaluated by dim light melatonin onset (DLMO). Activity distribution and rest-activity rhythm indicators were derived from 14-day actigraphy data, and differences between working and non-working groups were analyzed. The association of activity distribution and rest-activity rhythm indicators with mood symptom was examined.</p> Results <p>Compared to non-working older adults, those who were working exhibited an earlier wake-up time (05:24&#xa0;h vs. 06:11&#xa0;h, <i>p</i> = 0.001) and higher levels of daytime activity (most active 10-hour activity count: 25605 vs. 16838, <i>p</i> &lt; 0.001), but similar DLMO (20:20&#xa0;h vs. 20:24&#xa0;h, <i>p</i> = 0.914). Work is associated with a more robust rest-activity rhythm as assessed by interdaily stability (β = 0.18, <i>p</i> &lt; 0.001) and autocorrelation coefficients (β = 0.09, <i>p</i> = 0.002). Regarding activity distribution, work is associated with high-intensity activity in shorter bouts, as shown by a lower Gini index (β = −0.04, <i>p</i> = 0.003) and a higher intensity gradient (β = 0.54, <i>p</i> &lt; 0.001).</p> Conclusions <p>Working and non-working older adults showed similar biological circadian rhythms, but working ones had a more robust rest-activity rhythm and higher levels and intensity of physical activity.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Work is associated with a more robust rest-activity rhythm and high-intensity physical activity among older adults

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月28日

查看全文
  • Pin-Shiuan Lee,
  • Yen-Ling Liu,
  • Yi-Ling Chen,
  • Wan-Ju Cheng

摘要

Background

Work participation is a major element of active aging in aging societies. However, the impact of work on physical activity and rest-activity rhythm has not been well-studied in the older population.

Aims

To investigate the association of work status with the distribution of physical activity and rest-activity rhythm.

Methods

The study recruited 35 working and 72 non-working community-dwelling adults older than 60 years old. Biological rhythm was evaluated by dim light melatonin onset (DLMO). Activity distribution and rest-activity rhythm indicators were derived from 14-day actigraphy data, and differences between working and non-working groups were analyzed. The association of activity distribution and rest-activity rhythm indicators with mood symptom was examined.

Results

Compared to non-working older adults, those who were working exhibited an earlier wake-up time (05:24 h vs. 06:11 h, p = 0.001) and higher levels of daytime activity (most active 10-hour activity count: 25605 vs. 16838, p < 0.001), but similar DLMO (20:20 h vs. 20:24 h, p = 0.914). Work is associated with a more robust rest-activity rhythm as assessed by interdaily stability (β = 0.18, p < 0.001) and autocorrelation coefficients (β = 0.09, p = 0.002). Regarding activity distribution, work is associated with high-intensity activity in shorter bouts, as shown by a lower Gini index (β = −0.04, p = 0.003) and a higher intensity gradient (β = 0.54, p < 0.001).

Conclusions

Working and non-working older adults showed similar biological circadian rhythms, but working ones had a more robust rest-activity rhythm and higher levels and intensity of physical activity.