Functional differentiation of the human lumbar perivertebral musculature revisited by means of muscle fibre type composition

Hesse, Bettina; Fröber, Rosemarie; Fischer, Martin S.; Schilling, Nadja

doi:10.1016/j.aanat.2013.07.003

Cited by 18 publications

(23 citation statements)

References 74 publications

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“…The general fibre type distribution was very similar among the hominoids studied here and is consistent with the previous observations in Homo (Hesse et al. ). In humans, the lumbar perivertebral muscles were composed of about 50% slow and 50% fast fibres, homogeneously distributed throughout the musculature (Hesse et al.…”

Section: Discussionsupporting

confidence: 92%

“…Data were assembled from various studies (Kojima & Okada, ; Schilling, ; Hesse et al. ; this study) and mapped onto a simplified phylogenetic hypothesis (based on Crompton et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…In humans, the lumbar perivertebral muscles were composed of about 50% slow and 50% fast fibres, homogeneously distributed throughout the musculature (Hesse et al. ). Thus, in all hominoids studied so far, the fibre distribution was characterized by a (remarkably) homogeneous fibre composition, although the specific proportion of slow vs. fast fibres varied between the species.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, the human perivertebral musculature differs from that of other mammals in lacking distinct regionalizations and showing a homogeneous fibre composition throughout the lumbar region (Hesse et al. ). All human lumbar muscles, deep and superficial, are composed of approximately half slow and half fast fibres (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…This homogeneous fibre type distribution has been suggested to be associated with the high functional versatility of the human back musculature and to reflect the broad range of mechanical demands acting on the human trunk during upright movement (Hesse et al. ).…”

Section: Introductionmentioning

confidence: 99%

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Fibre type composition in the lumbar perivertebral muscles of primates: implications for the evolution of orthogrady in hominoids

et al. 2013

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The axial musculoskeletal system is important for the static and dynamic control of the body during both locomotor and non-locomotor behaviour. As a consequence, major evolutionary changes in the positional habits of a species are reflected by morpho-functional adaptations of the axial system. Because of the remarkable phenotypic plasticity of muscle tissue, a close relationship exists between muscle morphology and function. One way to explore major evolutionary transitions in muscle function is therefore by comparative analysis of fibre type composition. In this study, the three-dimensional distribution of slow and fast muscle fibres was analysed in the lumbar perivertebral muscles of two lemuriform (mouse lemur, brown lemur) and four hominoid primate species (white-handed gibbon, orangutan, bonobo, chimpanzee) in order to develop a plausible scenario for the evolution of the contractile properties of the axial muscles in hominoids and to discern possible changes in muscle physiology that were associated with the evolution of orthogrady. Similar to all previously studied quadrupedal mammals, the lemuriform primates in this study exhibited a morpho-functional dichotomy between deep slow contracting local stabilizer muscles and superficial fast contracting global mobilizers and stabilizers and thus retained the fibre distribution pattern typical for quadrupedal non-primates. In contrast, the hominoid primates showed no regionalization of the fibre types, similar to previous observations in Homo. We suggest that this homogeneous fibre composition is associated with the high functional versatility of the axial musculature that was brought about by the evolution of orthograde behaviours and reflects the broad range of mechanical demands acting on the trunk in orthograde hominoids. Because orthogrady is a derived character of euhominoids, the uniform fibre type distribution is hypothesized to coincide with the evolution of orthograde behaviours.

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Section: Discussionsupporting

confidence: 92%

“…Data were assembled from various studies (Kojima & Okada, ; Schilling, ; Hesse et al. ; this study) and mapped onto a simplified phylogenetic hypothesis (based on Crompton et al. ).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fibre type composition in the lumbar perivertebral muscles of primates: implications for the evolution of orthogrady in hominoids

et al. 2013

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Trunk muscle endurance, strength and flexibility in rural subsistence farmers and urban industrialized adults in western Kenya

et al. 2021

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Objectives High trunk muscle endurance, strength, and moderate flexibility reportedly help maintain musculoskeletal health, but there is evidence for tradeoffs among these variables as well as sex differences in trunk muscle endurance and strength. To test if these observations extend similarly to both men and women in nonindustrial and industrial environments, we investigated intra‐individual associations and group and sex differences in trunk muscle endurance, strength, and flexibility among 74 (35 F, 39 M; age range: 18–61 years) adults from the same Kalenjin‐speaking population in western Kenya. We specifically compared men and women from an urban community with professions that do not involve manual labor with rural subsistence farmers, including women who frequently carry heavy loads. Methods Trunk muscle endurance, strength, and flexibility were measured with exercise tests and electromyography (EMG). Results We found a positive correlation between trunk extensor strength and endurance (R = .271, p ≤ .05) and no associations between strength or endurance and flexibility. Rural women had higher trunk extensor and flexor endurance, EMG‐determined longissimus lumborum endurance, and trunk extensor strength than urban women (all p ≤ .05). Rural women had higher trunk extensor and flexor endurance than rural men (both p ≤ .05). Urban women had lower trunk flexor and extensor endurance than urban men (both p ≤ .01). Conclusions High levels of physical activity among nonindustrial subsistence farmers, particularly head carrying among women, appear to be associated with high trunk muscle endurance and strength, which may have important benefits for helping maintain musculoskeletal health.

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Determination of the motor unit behavior of lumbar erector spinae muscles through surface EMG decomposition technology in healthy female subjects

et al. 2016

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Functional differentiation of the human lumbar perivertebral musculature revisited by means of muscle fibre type composition

Cited by 18 publications

References 74 publications

Fibre type composition in the lumbar perivertebral muscles of primates: implications for the evolution of orthogrady in hominoids

Fibre type composition in the lumbar perivertebral muscles of primates: implications for the evolution of orthogrady in hominoids

Trunk muscle endurance, strength and flexibility in rural subsistence farmers and urban industrialized adults in western Kenya

Determination of the motor unit behavior of lumbar erector spinae muscles through surface EMG decomposition technology in healthy female subjects

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