Function and Cytochemical Characteristics of Postural Limb Muscles of the Rhesus Monkey: A Telemetered EMG and Immunofluorescence Study

Using telemetered electromyography and immunocytochemical fibre typing (of both fresh frozen and preserved specimens), the present paper demonstrates clearly that at the elbow, knee, and ankle joints, the rhesus monkey (Macaca mulatta) is endowed with one extensor-muscle head specialized for posture...

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Published inFolia primatologica Vol. 70; no. 5; pp. 235 - 253
Main Authors Jouffroy, Françoise K, Stern, Jack T, Medina, Monique F, Larson, Susan G
Format Journal Article
LanguageEnglish
Published The Netherlands Brill 01.09.1999
Karger
S. Karger AG
Subjects
Animals
Arm - physiology
Biological and medical sciences
Electromyography
Female
Fluorescent Antibody Technique
Fundamental and applied biological sciences. Psychology
Gravity effects
Immunohistochemistry
Leg - physiology
Macaca mulatta - physiology
Muscle, Skeletal - physiology
Muscles
Posture
Reviewed Article
Striated muscle. Tendons
Telemetry
Vertebrates: osteoarticular system, musculoskeletal system
Fibre typing
Rhesus
Monkey
Muscle
Electromyography
Cytochemistry
Immunofluorescence
Posture
Histoenzymology
Immunocytochemistry
Electrophysiology
Lower limb
Macaca mulatta
Striated muscle
Vertebrata
Mammalia
Primates
Simioidea
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Summary:Using telemetered electromyography and immunocytochemical fibre typing (of both fresh frozen and preserved specimens), the present paper demonstrates clearly that at the elbow, knee, and ankle joints, the rhesus monkey (Macaca mulatta) is endowed with one extensor-muscle head specialized for posture. These postural heads are distinguished by (a) recruitment at low levels to maintain joint position against the effect of gravity, (b) recruitment near maximum levels during walking, and (c) high content and relatively large size of slow, fatigue-resistant (type I) muscle fibres. The nonpostural heads of the investigated muscles were recruited at levels correlated to the strenuousness of the effort and are notable by the small percentage and size of slow muscle fibres. The postmortem stability of the structural properties of myosin makes immunocytochemical fibre typing suitable for the study of preserved cadavers.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0015-5713
1421-9980
DOI:10.1159/000021703