title: Spatial measures associated with stair use.
abstract: OBJECTIVE
  Although stair use in workplaces can provide an accessible means of integrating physical activity into work routines, there is little information available on how building design influences stair use.
  
  
  METHODS
  This cross-sectional study assessed the relationship between stair use and the design and location of stairs.
  
  
  METHODS
  Ten three- or four-story academic buildings on two university campuses.
  
  
  METHODS
  The buildings contained a total of 38 stairs and 12 elevators.
  
  
  METHODS
  Stair use was measured using infrared monitors. Eighteen environmental variables that operationalized the appeal, convenience, comfort, legibility, and safety of stairs were measured.
  
  
  RESULTS
  Regression analysis identified eight spatial variables associated with stair use: travel distances from stair to nearest entrance and the elevator, effective area or occupant load of each stair, accessibility of each stair, area of stair isovist (a graphic representation of the horizontal extent of a person's visual field from a specific point of reference within a building floor plan), number of turns required for travel from the stair to closest entrance, and the most integrated path (MIP). Three variables (effective area, area of stair isovist, and number of turns for travel from the MIP), explained 53 % of stair use in the 10 buildings. Most variables operationalizing the appeal, comfort, and safety of stairs were not statistically influential.
  
  
  CONCLUSIONS
  This study suggests that the spatial qualities that optimize the convenience and legibility of stairs may have the most influence on stair use in buildings.
authors.affiliation: Department of Architectural Science, Ryerson University, 325 Church Street, Toronto, Ontario, Canada, M5B 2K3. gnicoll@ryerson.ca
authors.forename: Gayle
authors.initials: G
authors.lastname: Nicoll
mesh_terms: D000328:Adult; D001107:Architectural Accessibility; D003430:Cross-Sectional Studies; D004607:Elevators and Escalators; D004779:Environment Design; D006293:Health Promotion; D006801:Humans; D007374:Interior Design and Furnishings; D008875:Middle Aged; D009043:Motor Activity; D009765:Obesity / Q000517:prevention & control*; D016272:Occupational Health; D009864:Ontario; D013028:Space Perception; D014495:Universities; D014796:Visual Perception; D016138:Walking / Q000523:psychology*; D017132:Workplace / Q000523:psychology*