Abstract:
:Male Sprague-Dawley rats (n = 48, > 200 g) were progressively treadmill trained over 5 wk where they were running 60 min/d, 5 d/wk. One-half of the group consumed a high-fat diet (HF, 78.7% of energy), while one-half consumed a high-carbohydrate diet (HC, 68.7% of energy). On the day of the experiment, 6 rats per diet were run at 29 m/min, 8% grade for 0, 10, 20, or 60 min. Immediately post-exercise rats were anesthetized, and soleus (S), red vastus lateralis (RV), and white vastus lateralis (WV) muscles were removed. There were no significant differences between diets for S glycogen pre-, during, or post-exercise. RV glycogen (micromol x g(-1) wet wt) was lower (p < 0.05) at rest for the HF (27.5 +/- 3.9, Mean +/- SEM) vs the HC (37.6 +/- 3.5), but similar to HC at 60 min (11.0 +/- 1.9, HF; 8.6 +/- 1.3, HC). RV glycogen use rates (nmol x g(-1) x min(-1)) were lower for the HF (985 +/- 295, 356 +/- 61) than the HC (1593 +/- 144, 1055 +/- 272) for 0-10 and 11-20 min, respectively. Resting WV glycogen was lower for the HF (25.3 +/- 1.6) vs the HC (40.7 +/- 5.8), while post exercise values were similar (17.0 +/- 4.4, HF; 15.7 +/- 2.0, HC). WV glycogen use was negligible from 0-10 and 11-20 min in the HF compared to the HC (280 +/- 169 and 1601 +/- 177 nmol x g(-1) x min(-1), respectively). These data indicate that muscle glycogen is spared during the early stages of prolonged exercise in HF adapted rats and that the sparing occurs according to expected muscle recruitment patterns.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Nakamura M,Brown J,Miller WCdoi
10.1055/s-2007-971939subject
Has Abstractpub_date
1998-08-01 00:00:00pages
419-24issue
6eissn
0172-4622issn
1439-3964journal_volume
19pub_type
杂志文章abstract::The aim of this study was: i) to compute an energy balance of a slalom kayak competition by measuring the percentage contributions of the aerobic and anaerobic energy sources to total metabolic power (E(tot)); and ii) to compare these data with those obtained, on the same subjects, over a flat-water course covered at ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-865922
更新日期:2006-07-01 00:00:00
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journal_title:International journal of sports medicine
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更新日期:2016-09-01 00:00:00
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journal_title:International journal of sports medicine
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doi:10.1055/s-2007-1021242
更新日期:1992-02-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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更新日期:2001-08-01 00:00:00
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journal_title:International journal of sports medicine
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024674
更新日期:1991-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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更新日期:2013-03-01 00:00:00
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journal_title:International journal of sports medicine
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journal_title:International journal of sports medicine
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更新日期:2001-01-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:1997-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:1991-02-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00
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journal_title:International journal of sports medicine
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更新日期:1994-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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更新日期:2014-07-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
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更新日期:1990-05-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:2009-09-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
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更新日期:2010-09-01 00:00:00
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journal_title:International journal of sports medicine
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journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
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journal_title:International journal of sports medicine
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journal_title:International journal of sports medicine
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:1991-04-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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更新日期:1984-08-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:1985-12-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
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更新日期:2005-09-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
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更新日期:2020-08-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2002-33735
更新日期:2002-08-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024923
更新日期:1989-10-01 00:00:00