Immediate Effect of Cumulative Transverse Strain via Exercise on the Achilles Tendon in Individuals with and Without Flat Feet

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dc.contributor.authorTas, Serkan
dc.contributor.authorKocyigit, Murat Fatih
dc.contributor.authorAraci, Ayca
dc.contributor.authorTufek, Muhammed Taha
dc.date.accessioned2026-01-24T12:26:49Z
dc.date.available2026-01-24T12:26:49Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractBackground: Flat feet change lower-extremity alignment, and they may change the load distribution on the Achilles tendon during exercise. The purpose of this study was to investigate the immediate effect of cumulative transverse strain via resistive ankle plantarflexion exercise on the Achilles tendon in individuals with flat feet. Methods: Fourteen individuals with flat feet and 14 age-matched individuals with normal foot posture were enrolled. Achilles tendon thickness was measured by an ultrasonography device with a linear probe at three points: 1, 2, and 3 cm proximal to the superior aspect of the calcaneus. Ultrasonography measurements were performed before and after participants completed 90 repetitions of double-leg calf raise exercises, which included moving the foot from full ankle dorsiflexion to full ankle plantarflexion. Results: Achilles tendon thickness at all three points measured was thinner in the flat feet group at preexercise and postexercise conditions compared with that of the control group (P < .05). Achilles tendon thickness at all three points decreased after the exercise in both groups (P < .001). The differences in Achilles tendon thickness at all three points measured between preexercise and postexercise conditions were lower in individuals with flat feet than in those of the control group (P < .05). Conclusions: There was a significant decrease in Achilles tendon thickness after exercise in both groups; however, tendon thickness markedly diminished in individuals with normal foot posture. The findings are thought to result from changes in tendon structure and load distribution on the Achilles tendon.
dc.identifier.doi10.7547/22-230
dc.identifier.issn8750-7315
dc.identifier.issn1930-8264
dc.identifier.issue3
dc.identifier.pmid37656686
dc.identifier.scopus2-s2.0-105009325752
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.7547/22-230
dc.identifier.urihttps://hdl.handle.net/20.500.12868/4955
dc.identifier.volume115
dc.identifier.wosWOS:001524113100001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Podiatric Med Assoc
dc.relation.ispartofJournal of The American Podiatric Medical Association
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260121
dc.subjectFoot Posture
dc.subjectTendinopathy
dc.subjectMorphology
dc.subjectThickness
dc.subjectEtiology
dc.subjectObesity
dc.titleImmediate Effect of Cumulative Transverse Strain via Exercise on the Achilles Tendon in Individuals with and Without Flat Feet
dc.typeArticle

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