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Desmin cytoskeletal modifications af...

Christensen, Mandy Woolstenhulme.

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Desmin cytoskeletal modifications after resistance exercise in humans.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Desmin cytoskeletal modifications after resistance exercise in humans./
作者:	Christensen, Mandy Woolstenhulme.
面頁冊數:	86 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0030.
Contained By:	Dissertation Abstracts International66-01B.
標題:	Biology, Animal Physiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3161915
ISBN:	0496954636

Desmin cytoskeletal modifications after resistance exercise in humans.
Christensen, Mandy Woolstenhulme.

Desmin cytoskeletal modifications after resistance exercise in humans. - 86 p.

Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0030.

Thesis (Ph.D.)--Brigham Young University, 2005.

Desmin is an important cytoskeletal protein of striated muscle. Little is known regarding its response to resistance exercise in humans. In order to expand our understanding, we measured desmin protein and other cellular constituents in muscle biopsies obtained 1 week before and 1, 2, 4, and 8 weeks following a single bout of exercise, and at similar time points during an 8 week resistance training regimen. Desmin and actin protein levels were determined with immunoblotting and MHC isoform distribution was determined using SDS PAGE at each time point for each group. We also measured maximal strength (1 RM) at weeks 0, 1, 2, 4, and 8 for the training group, and at weeks 0 and 8 for the single bout group. Desmin protein did not change at any time point for the single bout group. In the training group, desmin protein significantly increased at weeks 4 and 8 (89 +/- 26% and 77 +/- 13%, respectively, P < 0.0001). Actin protein content was unchanged in both groups at all time points. There were no changes in MHC isoforms in the single bout group. The percentage of MHC type IIa increased and MHC type IIx decreased at week 8 in the training group. Strength was significantly increased by week 2 (knee extension) and week 4 (leg press), and further increased at week 8 for both these exercises in the training group only. These data suggest a time course for desmin cyt{09}oskeleton modifications in response to resistance training that occurs shortly after strength gains, and precedes adaptations in MHC isoforms.

ISBN: 0496954636Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

Desmin cytoskeletal modifications after resistance exercise in humans.
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