Vpliv telesne drže na bolečine pri klasičnih kitaristih : magistrsko delo

Borič, Aljaž (author), Supej, Matej (mentor), Vodičar, Miha (comentor)

Klasični kitaristi so med dolgotrajnim igranjem kitare na stolu izpostavljeni statičnim položajem, kar lahko pripelje do mišično-skeletnih težav. Namen raziskave je bil ugotoviti, kateri telesni koti predstavljajo tveganje za bolečine. S pomočjo inercialne obleke, ki je vsebovala 17 senzorjev smo zajeli gibanje kitaristov med igranjem in se osredotočili na telesne kote hrbtenice, ramen in kolkov. Stopnjo bolečine smo pridobili s pomočjo spletnega vprašalnika o bolečinah po VAS lestvici pri posameznem telesnem delu. V raziskavi je sodelovalo 12 kitaristov, ki so bili desničarji in imeli vsaj 10 let izkušenj igranja. Potekala je v laboratoriju za biomehaniko na Fakulteti za šport v Ljubljani v času zaključevanja šolskega leta, ko imajo kitaristi na Akademiji za glasbo intenzivno obdobje vaj. Pri statistični obdelavi smo s Spearmanovim koleracijskim koeficientom ugotavljali povezanost med telesnimi koti in bolečinami. Z neparametričnim Mann-Whitney U testom pa ugotavljali razlike med skupinama z in brez bolečin pri posameznem telesnem delu, kjer so bili kitaristi razdeljeni glede na stopnjo VAS ocene. Ugotovili smo povezanost med primikom desne nadlahtnice glede na trup in večjimi bolečinami v levi rami in z večjimi bolečinami v vratnem delu (p = 0,03 in ρ = –0,61; p = 0,01 in ρ = –0,70). Med skupinama z in brez bolečin v vratnem delu smo ugotovili pomembne razlike v kotu desne nadlahtnice glede na trup, saj je bil kot v skupini z bolečinami manjši (p = 0,04 in Z = –2,03). Mediana kota v skupini z bolečinami je bila 21,17° (Q1 = 13,82° in Q3 = 28,08°), v skupini brez bolečin pa 33,33° (Q1 = 25,99° in Q3 = 36,37°). Kljub tem ugotovitvam, smo od petih hipotez potrdili le eno, obenem pa navedli šest trendov (p ≤ 0,10), ki bi se lahko pri večjem vzorcu pokazali za statistično značilne. Izbira inercialne nosljive obleke je bila primerna metoda za zajemanje gibanja kitaristov med igranjem, saj je prenosljiva, neobčutljiva za okolje, hitro določa orientacijo senzorjev in ne zahteva preobsežnega znanja za uporabo. Z njeno uporabo smo uspešno zajeti gibanje kitaristov in izmerili povprečne telesne kote. Prisotnost bolečin je bila v naši raziskavi pri večini kitaristov, zato je pomembno, da se področje v prihodnjih raziskavah podrobneje obdela in izvede na večjem številu kitaristov.

• Language: Slovenian
• Keywords: klasični kitaristi, statična drža, bolečine, inercialna obleka
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FŠ - Faculty of Sport
• Year: 2025
• PID: 20.500.12556/RUL-169448
• COBISS.SI-ID: 240438531
• Publication date in RUL: 29.05.2025

Secondary language

• Language: English
• Title: The effect of body posture on pain in classical guitarists

Abstract

Classical guitarists are exposed to static postures while playing on a chair for extended period of time which can lead to musculoskeletal disorders. The aim of this study was to identify which joint angles are associated with higher risk for pain. We used inertial suit with 17 sensors to capture movements of guitarists while playing, focusing on the joints of the spine, shoulders and hips. Level of pain was assessed through an online questionnaire using the Visual Analogue Scale (VAS) for each body part. Twelve right-handed guitarists with at least ten years of playing experience participated in this study. We took measurements in Laboratory of Biomechanics at Faculty of Sports in Ljubljana. The data collection was scheduled at the end of academic year, a time when guitarists have higher volume of preparations for exams at the Academy of Music in Ljubljana. Spearman's correlation coefficient was used to find correlations between joint angles and pain, while differences between groups with and without pain were calculated using non-parametric Mann-Whitney U test, based on individual VAS score. The results showed a correlation between adduction of right upper arm relative to the torso and higher levels of pain in the left shoulder and cervical spine (p = 0,03 and ρ = –0,61; p = 0,01 and ρ = –0,70). Between groups, with or without pain in cervical spine, we found significantly smaller adduction joint angle of right upper arm relative to torso in group with pain (p = 0,04 and Z = –2,03). The median angle in the pain group was 21,17° (Q1 = 13,82° and Q3 = 28,08°), while in the group without pain it was 33,33° (Q1 = 25,99° and Q3 = 36,37°). Even that we found this findings, only one out of five hypotheses was confirmed. Additionally, six trends (p ≤ 0,10) were identified, which could potentially reach statistical significance with a larger sample in future studies. The use of an inertial wearable suit proved to be an appropriate method for capturing movement while guitarists are playing. It is portable, insensitive to environmental factors, enables quick sensor orientation detection, and does not require extensive technical knowledge to operate. We successfully captured the movements of guitarists and measured average body angles while using it. Pain was present in the majority of guitarists in our study, which highlights the importance of further studies on this topic with a larger sample of participants.

• Keywords: classical guitarists, static posture, pain, inercial suit