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Effect of a Posture-Cueing Shirt on Sitting Posture During a Functional Task in Healthy Participants: A Randomized
Steffan W M Christensen1, Steffen S Johansson2, Mikkel D Jensen2
1Department of Health Science and Technology, Aalborg University, Aalborg, Denmark; Department of Physiotherapy, University College of Northern Denmark, Aalborg, Denmark.
Objectives:
The purpose of this study was to investigate the effect of a posture-cueing shirt on sitting posture during a functional task.
Methods:
Thirty healthy male participants were seated at a standardized workstation while completing 3 laptop writing tasks of 15-minute duration wearing either a posture-cueing shirt, a compression shirt, or no shirt. Posture was assessed based on photos taken at minutes 1 and 15 into the writing task from which the head and shoulder angles were measured and extracted for analysis. After each task, participants rated any potential pain they felt during the task on an 11-point numeric rating scale (NRS).
Results:
The results showed that none of the shirts significantly affected the head or shoulder angles at any time point. Participants reported lower pain levels after using the posture-cueing shirt (NRS 0 [0-1]) compared with no shirt (NRS 1 [0-2]; P = .012). No significant difference in pain levels was observed between shirts.
Conclusion:
Although posture did not change in any conditions for these healthy male participants, the posture-cueing shirt resulted in a lower pain intensity compared with no shirt but not with a compression shirt. Although a significant difference was found for pain intensity favoring the posture-cueing shirt, this difference was negligible, and thus its value to reduce pain or improve posture in healthy participants remains in question.
