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Segmental composition of the porcine iliopsoas muscle and influence of the body size and posture on the composition of the iliopsoas muscle (CROSBI ID 307221)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Vlahović, Hrvoje ; Malnar, Daniela ; Jelaska, Igor ; Marijančić, Verner ; Ivanac, Danijel ; Arbanas, Juraj Segmental composition of the porcine iliopsoas muscle and influence of the body size and posture on the composition of the iliopsoas muscle // Anatomical science international, 97 (2022), 2; 221-229. doi: 10.1007/s12565-021-00644-5

Podaci o odgovornosti

Vlahović, Hrvoje ; Malnar, Daniela ; Jelaska, Igor ; Marijančić, Verner ; Ivanac, Danijel ; Arbanas, Juraj

engleski

Segmental composition of the porcine iliopsoas muscle and influence of the body size and posture on the composition of the iliopsoas muscle

The iliopsoas muscle (IPM) of the pig consists of the iliacus muscle (IM) and the psoas major muscle (PMM). Due to the differences in posture and size between animal species, the musculoskeletal system is subjected to different functional demands, which affects the morphological characteristics of the musculoskeletal system. The aim of this study was to determine the muscle fiber type composition in pigs IPM, as pigs are large quadrupeds that differ in body size and posture from humans and small mammals, and to determine the influence of body size and posture on the composition of IPM. Muscle samples were collected from the Pietrain Landrace pigs, a sample from IM and a samples at four segments of the PMM. Samples were analyzed with monoclonal antibodies specific for different isoforms of the myosin heavy chain. The percentages and cross-sectional area (CSA) of type I, IIA, and IIX/IIB muscle fibers were calculated. Our studies revealed that in pigs IPM, type IIX/IIB muscle fibers were predominant with the largest CSA. A decrease in the proportion of type IIX/IIB muscle fibers, an increase in type I and IIA muscle fibers, and a decrease in the CSA of all muscle fiber types from the cranial to the caudal part of the PMM were observed. The pig IPM has primarily a dynamic function. The function of the PMM in the cranio-caudal direction changes from a dynamic to a static role. Body size and posture influence the composition of the IPM.

Body size ; Fiber types ; Iliopsoas muscle ; Pig ; Posture

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nije evidentirano

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Podaci o izdanju

97 (2)

2022.

221-229

objavljeno

1447-6959

10.1007/s12565-021-00644-5

Trošak objave rada u otvorenom pristupu

Povezanost rada

Kliničke medicinske znanosti

Poveznice
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