Journal ArticleDOI
Local muscle blood flow and sustained contractions of human arm and back muscles.
TLDR
Experiments with artificial ischaemia of the upper arm together with MBF measurements showed that MBF was of no importance for continuing sustained contractions above a certain force level, however, the level where longer lasting (>15 min) sustained contraction is possible is directly related to MBF.Abstract:
The endurance during sustained contraction of elbow, flexors, elbow extensors, and back extensors was tested in 3 human subjects. The force level used was varied between ca. 15 and ca. 75% of maximal isometric strength (IS). The clearance of133Xe from contracting muscles was registered during and after the endurance test. In this way it was possible to determine whether muscle blood flow (MBF) was increased or had stopped during the contraction. Experiments with artificial ischaemia of the upper arm together with MBF measurements showed that MBF was of no importance for continuing sustained contractions above a certain force level, which was 50, 25, and 40% of IS for elbow flexors, elbow extensors and back extensors, respectively. However, the level where longer lasting (>15 min) sustained contraction is possible is directly related to MBF. These levels were 22, 15, and 20% IS for elbow flexors, elbow extensors, and back extensors, respectively.read more
Citations
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Arterial blood pressure response to heavy resistance exercise
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Skeletal Muscle Adaptability: Significance for Metabolism and Performance
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Myoelectrical manifestations of localized muscular fatigue in humans.
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Effects of resistance exercise combined with moderate vascular occlusion on muscular function in humans
Yudai Takarada,Haruo Takazawa,Yoshiaki Sato,Shigeo Takebayashi,Yasuhiro Tanaka,Naokata Ishii +5 more
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References
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Journal ArticleDOI
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Journal Article
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Journal ArticleDOI
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Journal ArticleDOI
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