title: Standard values of the upper body posture and postural control: a study protocol.
abstract: BACKGROUND
  Decisions on orthopedic interventions on upper body posture and its control have usually resulted from comparisons with the healthy state. Therefore, practitioners as well as scientists in human movement science or orthopedics need access to such kind of data which are patient-centered and well measured. Until now, these data have been missing concerning upper body posture as well as postural control and their control. That is why the aim of the current project is to measure these data with healthy participants across the lifespan.
  
  
  RESULTS
  For standard value determination tolerance range and confidence intervals will be calculated. In addition, Pearson- or Spearman-Rank correlations will be used as well as two-sample-t-tests or Mann-Whitney-U-tests for specific group differences. All tests will be two-sided with the level of significance of 5 %.
  
  
  CONCLUSIONS
  This project aims at improving classifications in adaptations of upper body posture and postural control. Measured standard values have not been determined before to this extent. Therefore, interventional effects may become better quantifiable and justiciable.
authors.affiliation: Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, Frankfurt/Main, 60590 Germany.
authors.forename: Daniela
authors.initials: D
authors.lastname: Ohlendorf
authors.affiliation: Institute of Sport Sciences, Goethe-University Frankfurt/Main, Ginnheimer Landstraße 39, Frankfurt/Main, 60487 Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Mickel
authors.affiliation: Institute of Biostatistics and Mathematical Modeling, Goethe-University, Frankfurt/Main, Theodor-Stern-Kai 7, Building 11, Frankfurt/Main, 60590 Germany.
authors.forename: Natalie
authors.initials: N
authors.lastname: Filmann
authors.affiliation: Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, Frankfurt/Main, 60590 Germany.
authors.forename: Eileen M
authors.initials: EM
authors.lastname: Wanke
authors.affiliation: Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, Frankfurt/Main, 60590 Germany.
authors.forename: David A
authors.initials: DA
authors.lastname: Groneberg
keywords: Confidence interval; Postural control; Standard value; Study protocol; Upper body posture