title: Timed Floor to Stand-Natural: Reference Data for School Age Children.
abstract: OBJECTIVE
  To collect reference data for the Timed Floor to Stand-Natural (TFTS-N) on a large, diverse sample of school children who are typically developing, taking into account age, sex, and body mass index (BMI).
  
  
  METHODS
  Five physical therapists administered the TFTS-N on a sample of convenience of 1476 school children who were typically developing, aged 5 to 14 years (male = 637, female = 839), using previously tested, standardized reliable procedures.
  
  
  RESULTS
  The average time ranged from 7.91 ± 1.65 seconds to 8.98 ± 1.62 seconds; 8 year-old students were the quickest and the 13-year-old students were the slowest. The mean difference between males and females was clinically negligible at 0.38 seconds. Post hoc analyses revealed no significant differences among BMI categories.
  
  
  CONCLUSIONS
  Reference data for the TFTS-N test are now available. Neither sex nor BMI affects the timing of the task in this age range.
authors.affiliation: Physical Therapy Department (Ms Weingarten, Mr Lieberstein, Ms Itzkowitz, Mr Vialu, and Dr Doyle), New York City Department of Education, New York, New York; Department of Rehabilitation & Movement Sciences (Dr Kaplan), Rutgers, The State University of New Jersey, Newark, New Jersey.
authors.forename: Goldie
authors.initials: G
authors.lastname: Weingarten
authors.forename: Michael
authors.initials: M
authors.lastname: Lieberstein
authors.forename: Adina
authors.initials: A
authors.lastname: Itzkowitz
authors.forename: Carlo
authors.initials: C
authors.lastname: Vialu
authors.forename: Maura
authors.initials: M
authors.lastname: Doyle
authors.forename: Sandra L
authors.initials: SL
authors.lastname: Kaplan
mesh_terms: D000293:Adolescent; D000367:Age Factors; D015992:Body Mass Index; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D026741:Physical Therapy Modalities / Q000592:standards*; D012016:Reference Values; D012737:Sex Factors