Controlled trial to compare the Achilles tendon load during running in flatfeet participants using a customized arch support orthoses vs an orthotic heel lift
Autor: | Samuel K.K. Ling, Kawin Kw Lee, Patrick Sh Yung |
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Rok vydání: | 2019 |
Předmět: |
Adult
Male medicine.medical_specialty lcsh:Diseases of the musculoskeletal system Heel Runners Orthoses Foot Orthoses Orthotics Flatfeet Achilles Tendon Insole Running Weight-Bearing Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Rheumatology medicine Humans Orthopedics and Sports Medicine Heel lift 030222 orthopedics Achilles tendon business.industry Forefoot Equipment Design 030229 sport sciences medicine.disease Flatfoot Biomechanical Phenomena Tendon Treatment Outcome medicine.anatomical_structure Tendinopathy Load Female lcsh:RC925-935 Ankle business Research Article Arch support |
Zdroj: | BMC Musculoskeletal Disorders BMC Musculoskeletal Disorders, Vol 20, Iss 1, Pp 1-12 (2019) |
ISSN: | 1471-2474 |
Popis: | Background Achilles tendinopathy is one of the most common overuse injuries in running, and forefoot pronation, seen in flatfeet participants, has been proposed to cause additional loading across the Achilles tendon. Foot orthoses are one of the common and effective conservative treatment prescribed for Achilles tendinopathy, it works by correcting the biomechanical malalignment and reducing tendon load. Previous studies have shown reduction of Achilles Tendon load (ATL) during running by using customized arch support orthosis (CASO) or an orthotic heel lift (HL). However, there are still little biomechanical evidence and comparative studies to guide orthotic prescriptions for Achilles tendinopathy management. Therefore, this study seeks to investigate the two currently employed orthotic treatment options for Achilles tendinopathy: CASO and HL for the reduction of ATL and Achilles tendon loading rate (ATLR) in recreational runners with flatfeet. Methods Twelve participants were recruited and run along the runway in the laboratory for three conditions: (1) without orthoses, (2) with CASO (3) with HL. Kinematic and kinetic data were recorded by 3D motion capturing system and force platform. Ankle joint moments and ATL were computed and compared within the three conditions. Results Participants who ran with CASO (p = 0.001, d = 0.43) or HL (p = 0.001, d = 0.48) associated with a significant reduction in ATL when compared to without orthotics while there was no significant difference between the two types of orthoses, the mean peak ATL of CASO was slightly lower than HL. Regarding the ATLR, both orthoses, CASO (p = 0.003, d = 0.93) and HL (p = 0.004, d = 0.78), exhibited significant lower value than the control but similarly, no significant difference was noted between them in which the use of CASO yielded a slightly lower loading rate than that of HL. Conclusions Both CASO and HL were able to cause a significant reduction in peak ATL and ATLR comparing to without orthotics condition. There were subtle but no statistically significant differences in the biomechanical effects between the two types of orthoses. The findings help to quantify the effect of CASO and HL on load reduction of Achilles tendon and suggests that foot orthoses may serve to prevent the incidence of Achilles tendon pathologies. Trial registration NCT04003870 on clinicaltrials.gov 1 July 2019. |
Databáze: | OpenAIRE |
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