Effects of 20-Week Intermittent Cold-Water-Immersion on Phenotype and Myonuclei in Single Fibers of Rat Hindlimb Muscles
-
- Lee J.H.
- Human Physiology, Korea National Sport University
-
- Han E.Y.
- Human Physiology, Korea National Sport University
-
- Kang M.S.
- Human Physiology, Korea National Sport University
-
- Kawano F.
- School of Health and Sport Sciences, Osaka University Graduate School of Medicine, Osaka University
-
- Kim H.J.
- Human Physiology, Korea National Sport University
-
- Ohira Y.
- School of Health and Sport Sciences, Osaka University Graduate School of Medicine, Osaka University
-
- Kim C.K.
- Human Physiology, Korea National Sport University
この論文をさがす
抄録
The effects of 20 weeks of intermittent cold-water-immersion on myosin heavy chain (MHC) expression,cross-sectional area (CSA), myonuclear number, andmyonuclear domain size in isolated single fiber of soleusand extensor digitorum longus (EDL) muscles were studied inmale Wistar rats. Cold exposure was accomplished bysubmerging the rats in shoulder-deep water, maintained at∼18°C, for 1 hour/day, 5 days/week and for 20 weeks.Cold exposure resulted in a significant inhibition of bodyand soleus muscle weight gain. The percent type IIa MHCfibers of EDL muscle was increased, whereas that of type IIa+ b MHC fibers was less in cold-exposed group than controls(p < 0.05). The mean CSA and myonuclear number intype I MHC fibers of soleus muscle in cold-exposed groupwere significantly less than controls. Myonuclear domain intype IIa fibers of EDL in the cold-exposed group was greaterthan controls (p < 0.05). It is suggested thatprolonged cold exposure causes the fiber-type-specificadaptation in rat hindlimb muscles. It is further indicatedthat cold-exposure-related modulation of myonuclear numberwas closely related to reduction of fiber CSA, not the shiftof fiber phenotype.<br>
収録刊行物
-
- The Japanese Journal of Physiology
-
The Japanese Journal of Physiology 54 (4), 331-337, 2004
一般社団法人 日本生理学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205043103104
-
- NII論文ID
- 10014089585
-
- NII書誌ID
- AA00691224
-
- COI
- 1:STN:280:DC%2BD2M%2Fgs1yhsQ%3D%3D
-
- ISSN
- 18811396
- 0021521X
-
- NDL書誌ID
- 7197155
-
- PubMed
- 15631688
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可