title: Development and validation of a new self-report instrument for measuring sedentary behaviors and light-intensity physical activity in adults.
abstract: BACKGROUND
  Low levels of physical activity and high levels of sedentary behavior (SB) are major public health concerns. This study was designed to develop and validate the 7-day Sedentary (S) and Light Intensity Physical Activity (LIPA) Log (7-day SLIPA Log), a self-report measure of specific daily behaviors.
  
  
  METHODS
  To develop the log, 62 specific SB and LIPA behaviors were chosen from the Compendium of Physical Activities. Face-to-face interviews were conducted with 32 sedentary volunteers to identify domains and behaviors of SB and LIPA. To validate the log, a further 22 sedentary adults were recruited to wear the GT3x for 7 consecutive days and nights.
  
  
  RESULTS
  Pearson correlations (r) between the 7-day SLIPA Log and GT3x were significant for sedentary (r = .86, P < .001), for LIPA (r = .80, P < .001). Lying and sitting postures were positively correlated with GT3x output (r = .60 and r = .64, P < .001, respectively). No significant correlation was found for standing posture (r = .14, P = .53).The kappa values between the 7-day SLIPA Log and GT3x variables ranged from 0.09 to 0.61, indicating poor to good agreement.
  
  
  CONCLUSIONS
  The 7-day SLIPA Log is a valid self-report measure of SB and LIPA in specific behavioral domains.
authors: School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.
authors: Faisal Awad
authors: FA
authors: Barwais
authors: Thomas F
authors: TF
authors: Cuddihy
authors: Tracy
authors: T
authors: Washington
authors: L Michaud
authors: LM
authors: Tomson
authors: Eric
authors: E
authors: Brymer
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D057185:Sedentary Behavior; D057566:Self Report; D011795:Surveys and Questionnaires