Standard values of the upper body posture and postural control: a study protocol

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

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 %.

Discussion

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.

Related collections

Most cited references 45

Record: found
Abstract: found
Article: not found

Measures of postural steadiness: differences between healthy young and elderly adults.

T Prieto, J B Myklebust, R G Hoffmann … (1996)

Measures of postural steadiness are used to characterize the dynamics of the postural control system associated with maintaining balance during quiet standing. The objective of this study was to evaluate the relative sensitivity of center-of-pressure (COP)-based measures to changes in postural steadiness related to age. A variety of time and frequency domain measures of postural steadiness were compared between a group of twenty healthy young adults (21-35 years) and a group of twenty healthy elderly adults (66-70 years) under both eyes-open and eyes-closed conditions. The measures that identified differences between the eyes-open and eyes-closed conditions in the young adult group were different than those that identified differences between the eye conditions in the elderly adult group. Mean velocity of the COP was the only measure that identified age-related changes in both eye conditions, and differences between eye conditions in both groups. The results of this study will be useful to researchers and clinicians using COP-based measures to evaluate postural steadiness.

0 comments Cited 345 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Dynamic regulation of sensorimotor integration in human postural control.

P. Loughlin, Robert Peterka (2003)

Upright stance in humans is inherently unstable, requiring corrective action based on spatial-orientation information from sensory systems. One might logically predict that environments providing access to accurate orientation information from multiple sensory systems would facilitate postural stability. However, we show that, after a period in which access to accurate sensory information was reduced, the restoration of accurate information disrupted postural stability. In eyes-closed trials, proprioceptive information was altered by rotating the support surface in proportion to body sway (support surface "sway-referencing"). When the support surface returned to a level orientation, most subjects developed a transient 1-Hz body sway oscillation that differed significantly from the low-amplitude body sway typically observed during quiet stance. Additional experiments showed further enhancement of the 1-Hz oscillation when the surface transitioned from a sway-referenced to a reverse sway-referenced motion. Oscillatory behavior declined with repetition of trials, suggesting a learning effect. A simple negative feedback-control model of the postural control system predicted the occurrence of this 1-Hz oscillation in conditions where too much corrective torque is generated in proportion to body sway. Model simulations were used to distinguish between two alternative explanations for the excessive corrective torque generation. Simulation results favor an explanation based on the dynamic reweighting of sensory contributions to postural control rather than a load-compensation mechanism that scales torque in proportion to a fixed combination of sensory-orientation information.

0 comments Cited 97 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

The "Hawthorne effect"--what did the original Hawthorne studies actually show?

G Wickström, T Bendix (2000)

The "Hawthorne effect" is often mentioned as a possible explanation for positive results in intervention studies. It is used to cover many phenomena, not only unwitting confounding of variables under study by the study itself, but also behavioral change due to an awareness of being observed, active compliance with the supposed wishes of researchers because of special attention received, or positive response to the stimulus being introduced. At times, the term seems to be used as a social equivalent to "placebo effect". In social research, there is much critical literature indicating that, in general, the term "Hawthorne effect" should be avoided. Instead of referring to the ambiguous and disputable Hawthorne effect when evaluating intervention effectiveness, researchers should introduce specific psychological and social variables that may have affected the outcome under study but were not monitored during the project, along with the possible effect on the observed results.

0 comments Cited 77 times – based on 0 reviews      Review now

Bookmark

All references

Author and article information

Contributors

Daniela Ohlendorf: occup-med@uni-frankfurt.de

Christoph Mickel: c.mickel@sport.uni-frankfurt.de

Natalie Filmann: filmann@med.uni-frankfurt.de

Eileen M. Wanke: occup-med@uni-frankfurt.de

David A. Groneberg: occup-med@uni-frankfurt.de

Journal

Journal ID (nlm-ta): J Occup Med Toxicol

Journal ID (iso-abbrev): J Occup Med Toxicol

Title: Journal of Occupational Medicine and Toxicology (London, England)

Publisher: BioMed Central (London )

ISSN (Electronic): 1745-6673

Publication date (Electronic): 16 July 2016

Publication date PMC-release: 16 July 2016

Publication date Collection: 2016

Volume: 11

Electronic Location Identifier: 34

Affiliations

[ ]Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, Building 9A, Frankfurt/Main, 60590 Germany

[ ]Institute of Sport Sciences, Goethe-University Frankfurt/Main, Ginnheimer Landstraße 39, Frankfurt/Main, 60487 Germany

[ ]Institute of Biostatistics and Mathematical Modeling, Goethe-University, Frankfurt/Main, Theodor-Stern-Kai 7, Building 11, Frankfurt/Main, 60590 Germany

Article

Publisher ID: 122

DOI: 10.1186/s12995-016-0122-9

PMC ID: 4947251

PubMed ID: 27429641

SO-VID: 475ce43c-91c2-45b0-bc34-059b35977df1

License:

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

History

Date received : 30 May 2016

Date accepted : 27 June 2016

Custom metadata

ScienceOpen disciplines: Occupational & Environmental medicine

Keywords: study protocol,upper body posture,postural control,standard value,confidence interval

Data availability:

ScienceOpen disciplines: Occupational & Environmental medicine

Keywords: study protocol, upper body posture, postural control, standard value, confidence interval

Standard values of the upper body posture and postural control: a study protocol

Read this article at

Abstract

Background

Results

Discussion

Related collections

Journal of Health Sciences

Most cited references 45

Measures of postural steadiness: differences between healthy young and elderly adults.

Dynamic regulation of sensorimotor integration in human postural control.

The "Hawthorne effect"--what did the original Hawthorne studies actually show?

Author and article information

Contributors

Journal

Affiliations

Article

History

Categories

Custom metadata

Comments

Comment on this article

Similar content 249

Cited by 15

Most referenced authors 345