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Title: Myofascial trigger points in the triceps surae
Author: Grieve, Rob
ISNI:       0000 0004 2736 973X
Awarding Body: University of the West of England, Bristol
Current Institution: University of the West of England, Bristol
Date of Award: 2012
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Abstract Background: Myofascial trigger points (MTrPs) have been cited as a cause of musculoskeletal pain and dysfunction. There is a paucity of evidence in the lower limb and specifically the triceps surae for the prevalence of MTrPs and efficacy of targeted interventions. Aims: To investigate the prevalence of active and latent MtrPs and associated pressure pain threshold (PPT) of the triceps surae in a healthy university population. To inform future phase 11 investigations on the efficacy of trigger point (TrP) pressure release on triceps surae dysfunction in a patient population. Methods: The first phase of this thesis established a new clinical probe adaptation to algometry. This new adaptation was used in a cross sectional study (n=220) to establish normative data on active and latent MTrP prevalence and PPT in the triceps surae. The results informed a case series on a patient population (n=10) with triceps surae dysfunction. Results: In the preliminary algometer probe study, the majority of participants indicated that PPT measurements using the 2cm2 probe with open cell polyurethane (Poron®) most clinically replicated the palpating thumb. The prevalence study identified no active MTrPs in the triceps surae muscles whereas latent MTrPs were identified in all triceps surae sites with prevalence varying from 13% (right soleus) to 30% (left gastrocnemius). An overall significant difference in PPT values (p<0.001) confirmed latent MTrP prevalence for all sites. The case series demonstrated a prevalence of active and latent MTrPs and myofascial pain syndrome (MPS) for all participants. On discharge the overall prevalence of active MTrPs had decreased in the triceps surae muscles, with individual improvements on outcome measures. The treatment used and appropriate outcomes have informed a future phase II investigation. Conclusion: The original findings of this thesis have enhanced the present MTrP knowledge base and informed clinical practice and future research. (Word count=298)
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available