Kratkoročni učinki sproščanja zadnje strani goleni s penastim valjem na dorzalno fleksijo skočnega sklepa : diplomsko delo

Jeraša, Teja (author), Tomc Žargi, Tina (mentor), Mlakar, Nataša (comentor), Hlebš, Sonja (reviewer)

Uvod: Sproščanje mehko-tkivnih struktur s penastim valjem je pogosto uporabljena oblika samostojnega miofascialnega sproščanja, pri kateri posameznik z lastno telesno težo izvaja pritisk na izbrano mišično skupino in pripadajoča mehka tkiva. Raziskave kažejo, da lahko uporaba penastega valja kratkoročno prispeva k povečanju obsega gibljivosti sklepov, vendar se protokoli izvedbe in uporabljene merilne metode med raziskavami razlikujejo. Namen: Namen diplomskega dela je bil ugotoviti kratkoročne spremembe obsega dorzalne fleksije v zgornjem skočnem sklepu po sproščanju mehko-tkivnih struktur zadnje strani goleni s penastim valjem pri zdravih mladih preiskovancih. Metode dela: V raziskavi je sodelovalo 25 zdravih preiskovancev, starih od 18 do 30 let, brez poškodb spodnjih udov. Preiskovanci so izvedli sproščanje mehko-tkivnih struktur zadnje strani goleni s penastim valjem 3 × 40 sekund, pri standardizirani hitrosti izvedbe. Obseg dorzalne fleksije v zgornjem skočnem sklepu smo merili s pomočjo tekočinskega goniometra in centimetrskega merilnega traku v stoječem položaju pri pokrčenem in iztegnjenem kolenu. Občutenje napora med izvedbo smo ocenjevali z modificiran Borgovo lestvico CR-10. Meritve smo izvedli pred začetkom intervencije in neposredno po njej. Rezultati: Po intervenciji je bilo ugotovljeno statistično značilno povečanje dorzalne fleksije pri pokrčenem kolenu (povprečno 3,3°; p < 0,001) in pri iztegnjenem kolenu (povprečno 2,7°; p < 0,001) ter pri odmiku stopala od stene pri pokrčenem kolenu (povprečno 1,2 cm; p < 0,001). Velikosti učinka so bile pri vseh treh merjenih izidih velike (d > 1,2). Razprava in zaključek: Po enkratni uporabi penastega valja na zadnji strani goleni je bilo pri zdravih mladih preiskovancih ugotovljeno takojšnje povečanje obsega dorzalne fleksije v zgornjem skočnem sklepu. Zaradi odsotnosti kontrolne skupine rezultatov ni mogoče zanesljivo pripisati izključno intervenciji, zato jih je treba interpretirati previdno. V prihodnje bi bile potrebne raziskave z večjim vzorcem, kontrolno skupino, objektivnejšim nadzorom intenzivnosti pritiska in daljšim obdobjem spremljanja.

• Language: Slovenian
• Keywords: diplomska dela, fizioterapija, penasti valj, sproščanje mehko-tkivnih struktur, dorzalna fleksija, obseg gibljivosti, zgornji skočni sklep
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: ZF - Faculty of Health Sciences
• Place of publishing: Ljubljana
• Publisher: [T. Jeraša]
• Year: 2026
• Number of pages: VIII, 32 str.
• PID: 20.500.12556/RUL-187968
• UDC: 615.8
• COBISS.SI-ID: 291363587
• Publication date in RUL: 17.09.2026

Secondary language

• Language: English
• Title: Short-term effects of foam rolling of the posterior lower leg on ankle dorsiflexion range of motion in healthy young adults : diploma work

Abstract

Introduction: Soft tissue release using a foam roller is a commonly used form of self myofascial release in which an individual uses their own body weight to apply pressure to a selected muscle group and the associated soft tissues. Research shows that the use of a foam roller can contribute to short term increases in joint range of motion; however, execution protocols and measurement methods differ between studies. Purpose: The purpose of the thesis was to determine short term changes in the range of dorsiflexion in the upper ankle joint after releasing the soft tissue structures of the posterior lower leg using a foam roller in healthy young participants. Methods: The study included 25 healthy participants aged 18 to 30 years without lower‑limb injuries. Participants performed soft‑tissue release of the posterior lower‑leg structures using a foam roller for 3 × 40 seconds, with a standardized execution speed. The range of dorsiflexion in the upper ankle joint was measured using a fluid goniometer and a measuring tape in a standing position with the knee flexed and extended. Perceived exertion during the intervention was assessed using a 10‑point rating scale. Measurements were taken before the start of the intervention and immediately after it. Results: After the intervention, a statistically significant increase in dorsiflexion was observed with the knee flexed (average 3.3°; p < 0.001) and with the knee extended (average 2.7°; p < 0.001), as well as in the foot to wall distance with the knee flexed (average 1.2 cm; p < 0.001). Effect sizes were large for all three measured outcomes (d > 1.2). Discussion and conclusion: After a single use of the foam roller on the posterior lower leg, an immediate increase in dorsiflexion range of motion in the upper ankle joint was observed in healthy young participants. Due to the absence of a control group, the results cannot be reliably attributed solely to the intervention and should therefore be interpreted with caution. Future studies should include a larger sample, a control group, more objective monitoring of pressure intensity, and a longer follow up period.

• Keywords: diploma theses, physiotherapy, foam roller, soft-tissue release, dorsiflexion, range of motion, upper ankle joint