Biomechanical and histological effects of augmented soft tissue mobilization therapy on achilles tendinopathy in a rabbit model

Kan Imai, Kazuya Ikoma, Qingshan Chen, Chunfeng Zhao, Kai Nan An, Ralph E. Gay

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Objective Augmented soft tissue mobilization (ASTM) has been used to treat Achilles tendinopathy and is thought to promote collagen fiber realignment and hasten tendon regeneration. The objective of this study was to evaluate the biomechanical and histological effects of ASTM therapy on rabbit Achilles tendons after enzymatically induced injury. Methods This study was a non-human bench controlled research study using a rabbit model. Both Achilles tendons of 12 rabbits were injected with collagenase to produce tendon injury simulating Achilles tendinopathy. One side was then randomly allocated to receive ASTM, while the other received no treatment (control). ASTM was performed on the Achilles tendon on postoperative days 21, 24, 28, 31, 35, and 38. Tendons were harvested 10 days after treatment and examined with dynamic viscoelasticity and light microscopy. Results Cross-sectional area in the treated tendons was significantly greater than in controls. Storage modulus tended to be lower in the treated tendons but elasticity was not significantly increased. Loss modulus was significantly lower in the treated tendons. There was no significant difference found in tangent delta (loss modulus/storage modulus). Microscopy of control tendons showed that the tendon fibers were wavy and type III collagen was well stained. The tendon fibers of the augmented soft tissue mobilization treated tendons were not wavy and type III collagen was not prevalent. Conclusion Biomechanical and histological findings showed that the Achilles tendons treated with ASTM had better recovery of biomechanical function than did control tendons.

Original languageEnglish (US)
Pages (from-to)112-118
Number of pages7
JournalJournal of Manipulative and Physiological Therapeutics
Volume38
Issue number2
DOIs
StatePublished - Feb 1 2015

Keywords

  • Achilles Tendon
  • Massage
  • Tendinopathy
  • Tendon Injuries

ASJC Scopus subject areas

  • Chiropractics

Fingerprint Dive into the research topics of 'Biomechanical and histological effects of augmented soft tissue mobilization therapy on achilles tendinopathy in a rabbit model'. Together they form a unique fingerprint.

Cite this