Cardiovascular Responses to Physical Activity During Work and Leisure

Details

• Personal Author:
  Alansare A ; Barone Gibbs B ; Kline CE ; Nagle E ; Quinn TD ; Radonovich LJ
• Description:
  Objectives Recent evidence suggests that occupational physical activity (OPA) is associated with adverse cardiovascular health, whereas leisure time physical activity is protective. This study explored explanatory physiological mechanisms. Methods Nineteen males (68% white, age=46.6 +/- 7.9 years, body mass index=27.9 +/- 5.1 kg/m2) with high self-reported OPA wore activity (ActiGraph and activPAL) and heart rate (HR) monitors for 7 days and an ambulatory blood pressure (BP) monitor on one workday and one non-workday. Mixed effects models compared cardiovascular variables (24-hour, nocturnal, waking and non-work time HR and BP) and nocturnal HR variability (HRV) on workdays versus non-workdays. Additional models examined associations of daily activity (steps, light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA)) with cardiovascular variables. Workday by daily activity interactions were examined. Results: 24-hour and waking HR and diastolic BP as well as non-work diastolic BP were significantly higher on workdays versus non-workdays (p<0.05 for all). However, no difference in systolic BP or nocturnal HR or BP was observed between work and non-workdays (p>0.05 for all). Low-frequency and high-frequency power indices of nocturnal HRV were lower on workdays (p<0.05 for both). Daily steps and LPA were positively associated with 24-hour and waking HR on work and non-workdays. Significant interactions suggested MVPA increases HR and lowers nocturnal HRV during workdays, with the opposite effect on non-workdays. Conclusions: Cardiovascular load was higher on workdays versus non-workdays with no compensatory hypotensive response following workdays. Daily MVPA may differentially affect ambulatory cardiovascular load and nocturnal HRV on workdays versus non-workdays, supporting the physical activity health paradox hypothesis. [Description provided by NIOSH]
• Subjects:
  Cardiovascular System Men Occupational Health Safety
• Keywords:
  Activity Levels Blood Pressure Cardiac Function Cardiovascular Function Cardiovascular Health Health Effects Heart Heart Rate Humans Monitors Occupational Health Physical Exercise Physiological Effects Physiological Function Physiological Measurements Physiological Response Recommendations Statistical Analysis Systolic Pressure Workers

  More +
• ISSN:
  1351-0711
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory ; RHD - Respiratory Health Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  94-101
• Volume:
  79
• Issue:
  2
• NIOSHTIC Number:
  nn:20063164
• Citation:
  Occup Environ Med 2022 Feb; 79(2):94-101
• Contact Point Address:
  Dr Tyler David Quinn, National Personal Protective Technology Laboratory, National Institute for Occupational Safety and Health, Pittsburgh, Pennsylvania, USA
• Email:
  yhh7@cdc.gov
• Federal Fiscal Year:
  2022
• Peer Reviewed:
  True
• Source Full Name:
  Occupational and Environmental Medicine
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7674974449df4ae3834d80e677f71191739b17bfd1302122391b875211f7b79741052c5d9455bc200089ae8a205284cc17d784277fbfcd0ef8dfa8d699a09d79
• Download URL:
  https://stacks.cdc.gov/view/cdc/226279/cdc_226279_DS1.pdf
• File Type:
  [PDF - 1002.52 KB ]