Spatial fiber type distribution in normal human muscle

Dahmane, Raja; Djordjević, S; Šimunič, Boštjan; Valenčic, V.

doi:10.1016/j.jbiomech.2004.10.020

Cited by 195 publications

(108 citation statements)

References 35 publications

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“…A 12 year longitudinal study showing capillary rarefaction without fibre atrophy41 suggests that rarefaction may precede atrophy during ageing. Muscle biopsies by definition provide only a small sample of the whole muscle and can introduce a sampling bias, at least partly related to differences in fibre type composition over the depth of the muscle 65. To minimize this latter bias, we have taken all biopsies from a similar location in the mid‐muscle belly of the vastus lateralis muscle, determined by distances from landmarks, and depth.…”

Section: Discussionmentioning

confidence: 99%

Coupling between skeletal muscle fiber size and capillarization is maintained during healthy aging

Barnouin

McPhee

Butler-Browne

et al. 2017

J cachexia sarcopenia muscle

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BackgroundAs muscle capillarization is related to the oxidative capacity of the muscle and the size of muscle fibres, capillary rarefaction may contribute to sarcopenia and functional impairment in older adults. Therefore, it is important to assess how ageing affects muscle capillarization and the interrelationship between fibre capillary supply with the oxidative capacity and size of the fibres.MethodsMuscle biopsies from healthy recreationally active young (22 years; 14 men and 5 women) and older (74 years; 22 men and 6 women) people were assessed for muscle capillarization and the distribution of capillaries with the method of capillary domains. Oxidative capacity of muscle fibres was assessed with quantitative histochemistry for succinate dehydrogenase (SDH) activity.ResultsThere was no significant age‐related reduction in muscle fibre oxidative capacity. Despite 18% type II fibre atrophy (P = 0.019) and 23% fewer capillaries per fibre (P < 0.002) in the old people, there was no significant difference in capillary distribution between young and old people, irrespective of sex. The capillary supply to a fibre was primarily determined by fibre size and only to a small extent by oxidative capacity, irrespective of age and sex. Based on SDH, the maximal oxygen consumption supported by a capillary did not differ significantly between young and old people.ConclusionsThe similar quantitative and qualitative distribution of capillaries within muscle from healthy recreationally active older people and young adults indicates that the age‐related capillary rarefaction, which does occur, nevertheless maintains the coupling between skeletal muscle fibre size and capillarization during healthy ageing.

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Section: Discussionmentioning

confidence: 99%

Coupling between skeletal muscle fiber size and capillarization is maintained during healthy aging

Barnouin

McPhee

Butler-Browne

et al. 2017

J cachexia sarcopenia muscle

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“…These parameters have been consistently used to identify muscular fatigue García-Manso, Rodriguez-Ruiz, et al, 2011) and fibre-type composition, namely the myosin heavy chain-I percentage (Š imunič et al, 2011;Valenčič & Knez, 1997). In addition, tensiomyography has been suggested as an indirect measurement of muscle stiffness (Dahmane et al, 2005;García-Manso, Rodriguez-Matoso, et al, 2011;García-Manso et al, 2012;García-Manso, Rodriguez-Ruiz, et al, 2011;Križaj, Simunic, & Zagar, 2008). Stiffness can be defined as the resistance of an object to a change in its length (Bret, Rahmani, Dufour, Messonnier, & Lacour, 2002;Brughelli & Cronin, 2008;McMahon & Cheng, 1990).…”

Section: Introductionmentioning

confidence: 99%

“…Stiffness can be defined as the resistance of an object to a change in its length (Bret, Rahmani, Dufour, Messonnier, & Lacour, 2002;Brughelli & Cronin, 2008;McMahon & Cheng, 1990). The displacement associated to the tensiomyography response (i.e., Dm) is thought to reflect the muscle contractile force and muscle stiffness (Dahmane et al, 2005;García-Manso et al, 2012;García-Manso, Rodriguez-Ruiz, et al, 2011;Križaj et al, 2008;Pišot et al, 2008). Pišot et al (2008) argue that as contraction intensity increases, connective tissue and tendon slack are taken up, progressively decreasing tensiomyography signal.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, if Dm may be used as indirect marker of muscle stiffness (Dahmane et al, 2005;García-Manso et al, 2012;García-Manso, Rodriguez-Ruiz, et al, 2011;Križaj et al, 2008), it is reasonable to assume that participants with lower Dm, which is indicative of greater muscle stiffness (Dahmane et al, 2005;García-Manso et al, 2012;García-Manso, Rodriguez-Ruiz, et al, 2011;Križaj et al, 2008), may present superior performance in motor tasks involving the stretch-shortening cycle (e.g., jumping and sprinting) when compared with their counterparts with higher Dm. In addition, if Tc refers to the contraction velocity (Dahmane et al, 2005;Š imunič et al, 2011), it is plausible to suggest that it may hold an association with the performance in muscle power-related tasks, as lower Tc values represent higher contraction velocities.…”

Section: Introductionmentioning

confidence: 99%

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Tensiomyography parameters and jumping and sprinting performance in Brazilian elite soccer players

Gil

Loturco²,

Tricoli

et al. 2015

Sports Biomechanics

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Tensiomyography has been suggested as an indirect marker of muscle stiffness, which is associated with strength/power performance. Therefore, it is reasonable to suggest that tensiomyography parameters could be associated with power-related motor tasks. The purpose of this study was to investigate the association between tensiomyography parameters (from rectus and biceps femoris) and jumping and sprinting abilities in elite soccer players. In addition, we used tensiomyography parameters to compare the lateral symmetry between dominant and non-dominant legs. Twenty elite soccer players (age: 23.3 ± 4.8 years; height: 183.5 ± 6.6 cm; weight: 77.8 ± 7.5 kg) volunteered to participate in the study. Significant moderate negative correlations between biceps femoris displacement and contact time (r = -0.5, p = 0.03), rectus femoris displacement and contact time (r = -0.51, p = 0.02), and a significant moderate correlation between biceps femoris displacement and reactive strength index (r = 0.5, p = 0.03) were found. There were no correlations between tensiomyography parameters and power-related motor tasks. In addition, no differences in tensiomyography parameters between dominant and non-dominant legs were found. Our data suggest that tensiomyography parameters are not associated with power-related motor tasks performance in elite soccer players.

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“…A espasticidade, um dos fatores limitantes funcionais, atinge principalmente a musculatura antigravitacional pós-AVE (Dietz e Sinkjaer, 2007;Lima et al, 2008), afetando consequentemente, o músculo bíceps braquial, que embora exerça função tônica, de suporte do corpo contra a gravidade, é composto predominante de fibras de contração rápida (tipo II) (Dahmane et al, 2005).…”

Section: Discussionunclassified

Resistência ao movimento e atividade eletromiográfica dos músculos flexores e extensores de cotovelo em pacientes hemiparéticos espásticos submetidos à crioterapia e estimulação elétrica neuromuscular

Silva¹,

Borges²,

Lima³

et al. 2012

RBEB

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Resumo A espasticidade quase sempre coexiste a um Acidente Vascular Encefálico (AVE), devido à lesão do motoneurônio superior, provocando um impacto nas atividades da vida diária e na qualidade de vida dos pacientes. Por esse motivo é de suma importância o controle do tônus muscular, que pode ser alcançado por meio de recursos fisioterapêuticos, como a crioterapia e a Estimulação Elétrica Neuromuscular (EENM

show abstract

Spatial fiber type distribution in normal human muscle

Cited by 195 publications

References 35 publications

Coupling between skeletal muscle fiber size and capillarization is maintained during healthy aging

Coupling between skeletal muscle fiber size and capillarization is maintained during healthy aging

Tensiomyography parameters and jumping and sprinting performance in Brazilian elite soccer players

Resistência ao movimento e atividade eletromiográfica dos músculos flexores e extensores de cotovelo em pacientes hemiparéticos espásticos submetidos à crioterapia e estimulação elétrica neuromuscular

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