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A randomised controlled trial among cleaners-Effects on strength, balance and kinesiophobia

Jorgensen, Marie Birk; Ektor-Andersen, John LU ; Sjogaard, Gisela; Holtermann, Andreas and Sogaard, Karen (2011) In BMC Public Health 11.
Abstract
Background: Cleaners constitute a job group with poor health and low socioeconomic resources. Therefore, there is a great need for scientifically documented health promoting initiatives for cleaners. However, both workplace initiatives and high quality intervention studies are lacking. The aim of this study was to evaluate the effects of a 3-month workplace trial with interventions to improve physical or cognitive behavioural resources among cleaners. Methods: A cluster randomised controlled trial was conducted among 294 female cleaners from 9 workplaces. The participants were allocated to three groups: Physical coordination training (PCT, n = 95), Cognitive behavioural theory-based training (CBTr, n = 99) and Reference group (REF, n =... (More)
Background: Cleaners constitute a job group with poor health and low socioeconomic resources. Therefore, there is a great need for scientifically documented health promoting initiatives for cleaners. However, both workplace initiatives and high quality intervention studies are lacking. The aim of this study was to evaluate the effects of a 3-month workplace trial with interventions to improve physical or cognitive behavioural resources among cleaners. Methods: A cluster randomised controlled trial was conducted among 294 female cleaners from 9 workplaces. The participants were allocated to three groups: Physical coordination training (PCT, n = 95), Cognitive behavioural theory-based training (CBTr, n = 99) and Reference group (REF, n = 100). Interventions were conducted during work hours for an average of 1 hour/week. Muscle strength was measured by maximal voluntary contractions in trunk/extension, and shoulder abduction/elevation. Postural balance was measured on a force platform. Kinesiophobia was measured with Tampa Scale for Kinesiophobia. Test and questionnaires were completed at baseline and at 3-month follow-up and analyses followed the intention-to-treat (ITT) principle with last observation carried forward in case of missing data at follow-up. Reports and analyses are given on true observations as well. Results: ITT-analyses revealed that PCT improved strength of the trunk (p < .05) and postural balance (p < .05) compared to CBTr and REF. Based on true observations the strength and balance improvements corresponded to similar to 20% and similar to 16%, respectively. ITT-analyses showed that CBTr reduced kinesiophobia compared to PCT and REF (p < .05). Based on true observations, the improvement corresponded to a similar to 16% improvement. Conclusion: This workplace-based intervention study including PCT and CBTr among cleaners improved strength and postural balance from PCT, and kinesiophobia from CBTr. The improved strength, postural balance and kinesiophobia may improve the cleaners' tolerance for high physical work demands. Future studies should investigate the potential in the combination of PCT and CBTr in a workplace intervention. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
BMC Public Health
volume
11
publisher
BioMed Central
external identifiers
  • wos:000296393000001
  • scopus:80053597789
ISSN
1471-2458
DOI
10.1186/1471-2458-11-776
language
English
LU publication?
yes
id
04100c85-1daf-4a0f-b6c2-af9e50d1bc75 (old id 2208025)
date added to LUP
2011-12-01 08:27:42
date last changed
2017-07-30 04:12:56
@article{04100c85-1daf-4a0f-b6c2-af9e50d1bc75,
  abstract     = {Background: Cleaners constitute a job group with poor health and low socioeconomic resources. Therefore, there is a great need for scientifically documented health promoting initiatives for cleaners. However, both workplace initiatives and high quality intervention studies are lacking. The aim of this study was to evaluate the effects of a 3-month workplace trial with interventions to improve physical or cognitive behavioural resources among cleaners. Methods: A cluster randomised controlled trial was conducted among 294 female cleaners from 9 workplaces. The participants were allocated to three groups: Physical coordination training (PCT, n = 95), Cognitive behavioural theory-based training (CBTr, n = 99) and Reference group (REF, n = 100). Interventions were conducted during work hours for an average of 1 hour/week. Muscle strength was measured by maximal voluntary contractions in trunk/extension, and shoulder abduction/elevation. Postural balance was measured on a force platform. Kinesiophobia was measured with Tampa Scale for Kinesiophobia. Test and questionnaires were completed at baseline and at 3-month follow-up and analyses followed the intention-to-treat (ITT) principle with last observation carried forward in case of missing data at follow-up. Reports and analyses are given on true observations as well. Results: ITT-analyses revealed that PCT improved strength of the trunk (p &lt; .05) and postural balance (p &lt; .05) compared to CBTr and REF. Based on true observations the strength and balance improvements corresponded to similar to 20% and similar to 16%, respectively. ITT-analyses showed that CBTr reduced kinesiophobia compared to PCT and REF (p &lt; .05). Based on true observations, the improvement corresponded to a similar to 16% improvement. Conclusion: This workplace-based intervention study including PCT and CBTr among cleaners improved strength and postural balance from PCT, and kinesiophobia from CBTr. The improved strength, postural balance and kinesiophobia may improve the cleaners' tolerance for high physical work demands. Future studies should investigate the potential in the combination of PCT and CBTr in a workplace intervention.},
  author       = {Jorgensen, Marie Birk and Ektor-Andersen, John and Sjogaard, Gisela and Holtermann, Andreas and Sogaard, Karen},
  issn         = {1471-2458},
  language     = {eng},
  publisher    = {BioMed Central},
  series       = {BMC Public Health},
  title        = {A randomised controlled trial among cleaners-Effects on strength, balance and kinesiophobia},
  url          = {http://dx.doi.org/10.1186/1471-2458-11-776},
  volume       = {11},
  year         = {2011},
}