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  Exercise Protocol and Muscular Fiber Type Composition Dependent Phosphocreatine Recovery in Health and Disease

Jauslin, M., Henning, A., Dydak, U., Sprott, H., Meier, D., Jung, H., et al. (2010). Exercise Protocol and Muscular Fiber Type Composition Dependent Phosphocreatine Recovery in Health and Disease. Poster presented at ISMRM-ESMRMB Joint Annual Meeting 2010, Stockholm, Sweden.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0002-A9F6-A Version Permalink: https://hdl.handle.net/21.11116/0000-0002-A9F7-9
Genre: Poster

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https://cds.ismrm.org/protected/10MProceedings/files/1_program.htm (Abstract)
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 Creators:
Jauslin, M, Author
Henning, A1, Author           
Dydak, U, Author
Sprott, H, Author
Meier, D, Author
Jung, HH, Author
Sándor, PS, Author
Boesiger, P, Author
Affiliations:
1ETH and University Zürich, ou_persistent22              

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 Abstract: Differences in phosphocreatine recovery (represented by its time constant, normalized for pHmin) between controls and patients with mitochondrial encephalomyopathies (and migraine with aura) have been detected with 31P-MRS exercise protocols of both low and increasing intensity at low contraction frequency. By employing a protocol of high intensity and high contraction frequency these differences vanish, which may be explained by higher fractions of activated fast twitch fibers and interindividual variations in muscle fiber type composition in controls. Our observations therefore challenge the notion of absolute workload independence of PCr recovery due to different recovery characteristics of fast and slow twitch fibers.

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 Dates: 2010-05
 Publication Status: Issued
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Title: ISMRM-ESMRMB Joint Annual Meeting 2010
Place of Event: Stockholm, Sweden
Start-/End Date: 2010-05-01 - 2010-05-07

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Title: ISMRM-ESMRMB Joint Annual Meeting 2010
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 861 Start / End Page: - Identifier: -