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Exploring the effects of standardized soft tissue mobilization on the viscoelastic properties, pressure threshold and touch threshold of the caesarean section scar

Journal: Journal of Complementary and Integrative Medicine Date: 2023/06, 20(2):Pages: eA26-eA27. doi: Subito , type of study: pretest posttest design

Full text    (https://www.degruyter.com/document/doi/10.1515/jcim-2020-2120/html)

Keywords:

caesarean section [8]
conference abstract [108]
elasticity [9]
female [379]
OMT [2951]
osteopathic manipulative treatment [2973]
post-operative care [28]
pressure pain threshold [22]
pretest posttest design [108]
scar [19]
skin [43]
soft tissue mobilization [2]
women [333]

Abstract:

Background: One objective of soft tissue manual therapy applied to Caesarean section scars (C-section) is to improve the biomechanical properties of the scared skin and reduce pain. However, research supporting this effect is lacking. Objectives: The objective of this study was to characterize and explore the changes in scar viscoelastic properties, pressure threshold, and touch threshold before and after a soft tissue manual therapy session, immediate and after one week compared to unscarred skin. Methods: We conducted a proof of concept, exploratory and descriptive clinical trial evaluating the impact of a one-week course of soft tissue manual therapy. Thirty-six participants consented to participate and thirty-two completed the study. Experienced osteopath provided soft tissue manual treatment lx/week for 2 weeks. Scar site characteristics were evaluated weekly before and after soft tissue manual treatment including viscoelastic properties (MyotonPRO), pressure threshold (algometer) and touch threshold (Von Frey filaments). Results: At the baseline, C-section and unscarred skin are different on tone, stiffness, elongation time, mechanical relaxation time and pressure threshold (p <0.05). There was no significant difference for elasticity (p=0.985) and touch threshold (p=0,394). At cumulative time, there was a significant difference in tone, elasticity, elongation time, mechanical relaxation time and touch threshold (p <0.05) between C-section and unscarred skin. There was no significant different at cumulative time for stiffness (p=0,362) and pressure threshold (p=0,843). C-section scars evaluation immediately before and after soft tissue manual therapy at each time point revealed changes for tone, elasticity, stiffness, mechanical stress time, pressure threshold and touch threshold (p <0.05). No significant difference was revealed for elongation time (p=0,094). Conclusions The Caesarean section scar would be different from unscarred skin in certain viscoelastic properties and certain pain thresholds such as tone, stiffness and pressure pain threshold. However, the Caesarean section scar and unscarred skin would not be different on their elasticity and touch threshold. This study shows that 2 sessions of soft tissue manual therapy have an effect on the C-section viscoelastic properties and pain threshold. These findings support that soft tissue manual therapy can improve the biomechanical properties of the scared skin and certain types of pain.


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