title: Total Worker Health Intervention Increases Activity of Sedentary Workers.
abstract: BACKGROUND
  Office employees are exposed to hazardous levels of sedentary work. Interventions that integrate health promotion and health protection elements are needed to advance the health of sedentary workers. This study tested an integrated intervention on occupational sedentary/physical activity behaviors, cardiometabolic disease biomarkers, musculoskeletal discomfort, and work productivity.
  
  
  METHODS
  Two-group, RCT. Data were collected between January and August 2014.
  
  
  METHODS
  Overweight/obese adults working in sedentary desk jobs were randomized to: (1) a health protection-only group (HPO, n=27); or (2) an integrated health protection/health promotion group (HP/HP, n=27).
  
  
  METHODS
  HPO participants received an ergonomic workstation optimization intervention and three e-mails/week promoting rest breaks and posture variation. HP/HP participants received the HPO intervention plus access to a seated activity permissive workstation.
  
  
  METHODS
  Occupational sedentary and physical activity behaviors (primary outcomes), cardiometabolic health outcomes, musculoskeletal discomfort, and work productivity (secondary outcomes) were measured at baseline and post-intervention (16 weeks).
  
  
  RESULTS
  The HP/HP group increased occupational light intensity physical activity over the HPO group and used the activity permissive workstations 50 minutes/work day. Significant associations were observed between activity permissive workstation adherence and improvements in several cardiometabolic biomarkers (weight, total fat mass, resting heart rate, body fat percentage) and work productivity outcomes (concentration at work, days missed because of health problems).
  
  
  CONCLUSIONS
  The HP/HP group increased occupational physical activity and greater activity permissive workstation adherence was associated with improved health and work productivity outcomes. These findings are important for employers interested in advancing the well-being of sedentary office workers.
  
  
  BACKGROUND
  This study is registered at www.clinicaltrials.gov NCT02071420.
authors.affiliation: Department of Health and Human Physiology, University of Iowa, Iowa City, Iowa. Electronic address: lucas-carr@uiowa.edu.
authors.forename: Lucas J
authors.initials: LJ
authors.lastname: Carr
authors.affiliation: The Chicago School of Professional Psychology at Xavier University of Louisiana, New Orleans, Louisiana.
authors.forename: Christoph
authors.initials: C
authors.lastname: Leonhard
authors.affiliation: University of Iowa Hospitals and Clinics, Iowa City, Iowa.
authors.forename: Sharon
authors.initials: S
authors.lastname: Tucker
authors.affiliation: Department of Occupational and Environmental Health, University of Iowa, Iowa City, Iowa.
authors.forename: Nathan
authors.initials: N
authors.lastname: Fethke
authors.affiliation: Department of Health and Human Physiology, University of Iowa, Iowa City, Iowa.
authors.forename: Roberto
authors.initials: R
authors.lastname: Benzo
authors.affiliation: Department of Occupational and Environmental Health, University of Iowa, Iowa City, Iowa.
authors.forename: Fred
authors.initials: F
authors.lastname: Gerr
mesh_terms: D000328:Adult; D006804:Ergonomics; D015444:Exercise / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000517:prevention & control; D016272:Occupational Health; D011187:Posture; D057185:Sedentary Behavior; D013997:Time Factors; D017132:Workplace