title: Time kinetics of physical activity, sitting, and quality of life measures within a regional workplace: a cross-sectional analysis.
abstract: Interventions to increase physical activity and reduce sedentary behaviours within the workplace have been previously investigated. However, the evolution of these constructs without intervention has not been well documented. This retrospective study explored the natural progression or time kinetics of physical activity, sedentary behaviours and quality of life in a professional skilled workplace where focussed interventions were lacking.
  
  
  
  Participants (n = 346) employed as full-time staff members at a regional university completed an online survey in 2013 assessing physical activity and sedentary behaviours via the International Physical Activity Questionnaire, and quality of life via the Short-Form 36v2 questionnaire. Differences between that cohort of participants and an initial sample of similar participants (2009, n = 297), accounting for gender and staff categories (academic vs. professional), were examined using ANCOVAs with working hours as a co-variate.
  
  
  
  In comparison to the initial cohort, the follow-up cohort reported significantly less leisure-time, total walking, total vigorous and total physical activity levels, and lower overall physical health for quality of life (p < 0.05). In contrast, the follow-up cohort reported a significantly greater weekly sitting time, greater mental health scores for quality of life and greater total moderate physical activity levels (p < 0.05) compared to the initial cohort.
  
  
  
  Over a 4-year timeframe and without focussed workplace interventions, total physical activity levels were lower with sedentary behaviours greater at a rate twice that reported previously. Continuation of these undesirable health behaviours may impact negatively on worker productivity and health at a greater rate than that currently reported. Workplace interventions targeting sedentary behaviours and physical activity should be actively incorporated into organisations to counteract the alarming behavioural trends found in this study to maintain and/or enhance employee health and productivity.
authors.affiliation: Psychology and Public Health, James Cook University, Townsville, QLD, Australia.
authors.forename: Daniel B
authors.initials: DB
authors.lastname: Lindsay
authors.affiliation: Public Health, James Cook University, Townsville, QLD, Australia.
authors.forename: Sue
authors.initials: S
authors.lastname: Devine
authors.affiliation: Sport and Exercise Science, James Cook University, Townsville, QLD, 4811, Australia.
authors.forename: Rebecca M
authors.initials: RM
authors.lastname: Sealey
authors.affiliation: Sport and Exercise Science, James Cook University, Townsville, QLD, 4811, Australia. Anthony.Leicht@jcu.edu.au.
authors.forename: Anthony S
authors.initials: AS
authors.lastname: Leicht
mesh_terms: D000328:Adult; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D016272:Occupational Health; D009790:Occupations; D011187:Posture; D011788:Quality of Life; D012189:Retrospective Studies; D057185:Sedentary Behavior; D011795:Surveys and Questionnaires; D014495:Universities; D016138:Walking; D017132:Workplace
keywords: Employment; Gender; Occupation; Sedentary behaviour; University; Walking