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Fibroblast responses to variation in soft tissue mobilization pressure
G M Gehlsen1, L R Ganion, R Helfst
1Department of Health and Physiology, Ball State University, Muncie, IN 47306, USA. GGEHLSEN@WP.BSU.EDU
Medicine and Science in Sports and Exercise
|April 22, 1999
Summary
Augmented soft tissue mobilization therapy (ASTM) with heavy pressure significantly enhanced fibroblast proliferation in rat Achilles tendons, indicating accelerated healing. This study supports ASTM as a beneficial treatment for tendinitis.
Area of Science:
- Biomedical Engineering
- Orthopedics
- Sports Medicine
Background:
- Augmented soft tissue mobilization therapy (ASTM) is a novel massage technique used for chronic tendinitis.
- The proposed mechanism of ASTM involves controlled microtrauma to promote tissue healing.
Purpose of the Study:
- To investigate the morphological changes in rat Achilles tendons following collagenase-induced tendinitis.
- To evaluate the effect of varying pressure levels in ASTM on tendon healing.
Main Methods:
- Thirty rats were divided into five groups: tendinitis, tendinitis with light, medium, or extreme ASTM, and control.
- ASTM was applied for 3 minutes over six sessions.
- Achilles tendons were harvested one week post-treatment for fibroblast assessment via light and electron microscopy.
Main Results:
- A significant increase in fibroblast numbers was observed in the group subjected to extreme ASTM pressure (Group D) compared to all other groups (P<0.00).
- Electron microscopy revealed fibroblast enlargement, suggesting active tissue repair.
Conclusions:
- Heavy pressure application in ASTM therapy demonstrated a superior positive effect on tendon healing compared to light or moderate pressure.
- Morphological evidence supports ASTM, particularly with intense pressure, as a modality to promote healing in tendinitis.