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Heart at Work Study

2021年4月6日 更新者：Tyler Quinn、University of Pittsburgh

Cardiovascular Mechanisms of the Occupational Physical Activity Health Paradox: 24-hour Physical Activity, Blood Pressure, and Heart Rate

This is an observational study to examine the cardiovascular mechanisms of increased cardiovascular mortality in those with high activity occupations.

研究概览

地位

完全的

条件

详细说明

The current proposal uses a repeated-measures, within-subject design to address our aims. Twenty male participants will report to the laboratory to provide informed consent, complete baseline assessments, and receive ambulatory monitors. Following this session, each participant will wear physical activity and ambulatory cardiovascular monitors for 7 days, including at least one non-work day and one work day. Characterization of work activity will use physical activity data from self-reported time at work (Specific Aim I). The 24-hour cardiovascular load (HR and BP) and nocturnal HRV will be compared across work and non-work days (Specific Aim II). Lastly, whether fitness level or job strain modify the difference in cardiovascular strain between work vs. non-work days will be evaluated (Specific Aim III).

研究类型

观察性的

注册 (实际的)

19

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 美国
    • Pennsylvania
      • Pittsburgh、Pennsylvania、美国、15261
        • Physical Activity and Weight Management Research Laboratory

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

35年 至 59年 (成人)

接受健康志愿者

不

有资格学习的性别

男性

取样方法

非概率样本

研究人群

Middle-aged male food service workers

描述

Inclusion Criteria:

  • middle age (35-59 years)
  • male
  • self-report working full-time in the food service industry (≥30 hours/week)
  • self-report predominantly completing light intensity activity job responsibilities (≥75% work time walking, light movement, or standing)

Exclusion Criteria:

  • Resting blood pressure of ≥150 mmHg systolic and/or ≥95 mmHg diastolic
  • currently taking medications that are known to affect blood pressure or heart rate (e.g. Beta-blockers, ACE inhibitors, etc.)
  • greater than low risk to participate in physical activity as determined by PAR-Q (answer of yes to any of the 7 physical activity readiness questionnaire questions)
  • report working a second job in addition to their primary full-time job
  • report working overnight shifts (10pm-6am)
  • reported physical dysfunction (inability to walk 2 city blocks or climb 2 flights of stairs)
  • inability to complete the sub-maximal exercise test to completion (80% age-predicted heart rate maximum)
  • Currently being treated for a serious medical condition such as kidney disease, liver disease, cancer, or heart disease.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 观测模型：案例交叉
  • 时间观点：横截面

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
24-hour Heart Rate
大体时间：24 hours
We will calculate the average heart rate over each 24 hour period throughout a one week monitoring period.
24 hours

次要结果测量

结果测量
措施说明
大体时间
24-hour Ambulatory Systolic Blood Pressure
大体时间：24 hours
We will calculate the average systolic blood pressure over a 24-hour period on two separate days (workdays versus non-workdays).
24 hours
Nocturnal Heart Rate Variability, RMSSD
大体时间：approximately 8 hours (sleep time)
We will calculate the average heart rate variability during each night's sleep for a total of one week. The specific HRV variable presented is root mean square successive differences (RMSSD).
approximately 8 hours (sleep time)
Physical Activity Pattern. Steps Per Day
大体时间：1 week
This physical activity metric of steps per day was calculated as average number of steps during each day type (work versus non-workdays) throughout one week
1 week
Nocturnal Heart Rate Variability, SDNN
大体时间：approximately 8 hours (sleep time)
We will calculate the average heart rate variability during each night's sleep for a total of one week. The specific HRV variable presented is standard deviation of the normal to normal RR intervals (SDNN).
approximately 8 hours (sleep time)
Nocturnal Heart Rate Variability, LF
大体时间：approximately 8 hours (sleep time)
We will calculate the average heart rate variability during each night's sleep for a total of one week. The specific HRV variable presented is low frequency power (LF).
approximately 8 hours (sleep time)
Nocturnal Heart Rate Variability, HF
大体时间：approximately 8 hours (sleep time)
We will calculate the average heart rate variability during each night's sleep for a total of one week. The specific HRV variable presented is high frequency power (HF).
approximately 8 hours (sleep time)
Physical Activity Pattern. MVPA
大体时间：1 week
This physical activity metric of minutes of moderate to vigorous physical activity was calculated as average minutes during each day type (work versus non-workdays) throughout one week
1 week
Physical Activity Pattern. LPA
大体时间：1 week
This physical activity metric of minutes of light physical activity was calculated as average minutes during each day type (work versus non-workdays) throughout one week
1 week
Physical Activity Pattern. Sedentary
大体时间：1 week
This physical activity metric of minutes of sedentary time was calculated as average minutes during each day type (work versus non-workdays) throughout one week
1 week
Physical Activity Pattern. Upright
大体时间：1 week
This physical activity metric of minutes of upright time was calculated as average minutes during each day type (work versus non-workdays) throughout one week
1 week
24-hour Ambulatory Diastolic Blood Pressure
大体时间：24 hours
We will calculate the average diastolic blood pressure over a 24-hour period on two separate days (workdays versus non-workdays).
24 hours

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

University of Pittsburgh

调查人员

  • 首席研究员：Tyler D Quinn, MS、graduate student

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2019年10月17日

初级完成 (实际的)

2020年4月20日

研究完成 (实际的)

2020年7月24日

研究注册日期

首次提交

2019年8月28日

首先提交符合 QC 标准的

2019年8月29日

首次发布 (实际的)

2019年8月30日

研究记录更新

最后更新发布 (实际的)

2021年5月3日

上次提交的符合 QC 标准的更新

2021年4月6日

最后验证

2021年4月1日

更多信息

与本研究相关的术语

其他相关的 MeSH 术语

其他研究编号

  • STUDY19050097

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

不

IPD 计划说明

Upon completion of all data collection, data will be analyzed and summary conclusions will be published in a peer reviewed scientific journal.

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

搜索类似试验

赞助者和合作者

医疗条件

药物干预

CROs by country

CROs in Qatar

条件

罕见疾病

药物干预

膳食补充剂

赞助者/合作者

地点

3
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