| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
高強度運動後の回復期における筋小胞体のCa^<2+>取り込み機能の変化 : 速筋と遅筋との比較 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
CHANGES IN SARCOPLASMIC RETICULUM Ca^<2+>-SEQUESTERING CAPACITY DURING RECOVERY FOLLOWING HIGH-INTENSITY EXERCISE : COMPARISONS BETWEEN FAST- AND SLOW-TWITCH MUSCLES |
|
言語 |
en |
| 作成者 |
三島, 隆章
山田, 崇史
坂本, 誠
和田, 正信
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| アクセス権 |
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|
アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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権利情報 |
日本体力医学会 |
| 権利情報 |
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|
権利情報 |
本文データは学協会の許諾に基づきCiNiiから複製したものである |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
Ca^<2+> homeostasis |
| 主題 |
|
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主題Scheme |
Other |
|
主題 |
muscle fatigue |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
fiber type |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
490 |
| 内容記述 |
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内容記述 |
The purpose of this study was to investigate changes in sarcoplasmic reticulum (SR) Ca^<2+>-sequestering capacity in rat fast-twitch plantaris (PL) and slow-twitch soleus (SOL) muscles during recovery after high-intensity exercise. The rats were subjected to treadmill runs to exhaustion at the intensity (10% incline at 50m/min) estimated to require 100% of maximal O_2 consumption. The muscles were excised immediately after exercise, and 15, 30 and 60 min after exercise. Acute high-intensity exercise evoked a 27% and 38% depression (P<0.05) in SR Ca^<2+>-uptake rate in the PL and SOL, respectively. In the PL, uptake rate remained lower (P<0.05) at 30 min of recovery but recovered 60 min after exercise. These alterations were paralleled by those of SR Ca^<2+>-ATPase activity. On the other hand, SR Ca^<2+>-uptake rate in the SOL recovered 15 min after exercise. Unlike the PL, discordant time-course changes between SR Ca^<2+>-ATPase activity and uptake occurred in the SOL during recovery. SR Ca^<2+>-ATPase activities were unaltered with exercise and elevated (P<0.05) by 25, 30 and 30% at 15, 30 and 60 min of recovery, respectively. These results demonstrate that SR Ca^<2+>-sequestering ability is restored faster in slow-twitch than in fast-twitch muscle during recovery periods following a single bout of high-intensity exercise and suggest that the rapid restoration of SR Ca^<2+>-sequestering ability in slow-twitch muscle could contribute to inhibition of disturbances in contractile and structural properties that are known to occur with raised myoplasmic Ca^<2+> concentrations. |
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言語 |
en |
| 出版者 |
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出版者 |
日本体力医学会 |
| 言語 |
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言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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識別子タイプ |
NAID |
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関連識別子 |
110004821402 |
| 関連情報 |
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識別子タイプ |
URI |
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|
関連識別子 |
http://joi.jlc.jst.go.jp/JST.JSTAGE/jspfsm/55.503 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0039-906X |
| 収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00137986 |
| 開始ページ |
|
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開始ページ |
503 |
| 書誌情報 |
体力科学 : Japanese Journal of Physical Fitness and Sports Medicine
体力科学 : Japanese Journal of Physical Fitness and Sports Medicine
巻 55,
号 5,
p. 503-511,
発行日 2006-10-01
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| 旧ID |
26004 |
JpnJPhysFitnessSportsMed_55_503.pdf (827.2 KB)
