Abstract:
:High altitude training is a widely used strategy for improving aerobic exercise performance. Both Rhodiola crenulata (R) and Cordyceps sinensis (C) supplements have been reported to improve exercise performance. However, it is not clear whether the provision of R and C during high altitude training could further enhance aerobic endurance capacity. In this study, we examined the effect of R and C based supplementation on aerobic exercise capacity following 2-week high altitude training. Alterations to autonomic nervous system activity, circulatory hormonal, and hematological profiles were investigated. Eighteen male subjects were divided into two groups: Placebo (n=9) and R/C supplementation (RC, n=9). Both groups received either RC (R: 1400 mg+C: 600 mg per day) or the placebo during a 2-week training period at an altitude of 2200 m. After 2 weeks of altitude training, compared with Placebo group, the exhaustive run time was markedly longer (Placebo: +2.2% vs. RC: +5.7%; p<0.05) and the decline of parasympathetic (PNS) activity was significantly prevented in RC group (Placebo: -51% vs. RC: -41%; p<0.05). Red blood cell, hematocrit, and hemoglobin levels were elevated in both groups to a comparable extent after high altitude training (p<0.05), whereas the erythropoietin (EPO) level remained higher in the Placebo group (∼48% above RC values; p<0.05). The provision of an RC supplement during altitude training provides greater training benefits in improving aerobic performance. This beneficial effect of RC treatment may result from better maintenance of PNS activity and accelerated physiological adaptations during high altitude training.
journal_name
High Alt Med Bioljournal_title
High altitude medicine & biologyauthors
Chen CY,Hou CW,Bernard JR,Chen CC,Hung TC,Cheng LL,Liao YH,Kuo CHdoi
10.1089/ham.2013.1114subject
Has Abstractpub_date
2014-09-01 00:00:00pages
371-9issue
3eissn
1527-0297issn
1557-8682journal_volume
15pub_type
杂志文章abstract::The present study evaluated the effect of a sleep high-train low regimen on the finger cold-induced vasodilation (CIVD) response. Seventeen healthy males were assigned to either a control (CON; n=9) or experimental (EXP; n=8) group. Each group participated in a 28-day aerobic training program of daily 1-h exercise (50...
journal_title:High altitude medicine & biology
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journal_title:High altitude medicine & biology
pub_type: 杂志文章,meta分析
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更新日期:2018-06-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 杂志文章
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journal_title:High altitude medicine & biology
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journal_title:High altitude medicine & biology
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journal_title:High altitude medicine & biology
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journal_title:High altitude medicine & biology
pub_type: 历史文章,杂志文章
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更新日期:2001-04-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 杂志文章
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更新日期:2018-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-06-01 00:00:00
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journal_title:High altitude medicine & biology
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更新日期:2017-06-01 00:00:00
abstract::Although thousands of people ascend 4205 m to visit the summit of Mauna Kea each year, there has been no information on the rate of altitude illness triggered by such visits. Two surveys were used: one for tourists driving up to the summit and the other for summit astronomy workers staying at lodging facilities at int...
journal_title:High altitude medicine & biology
pub_type: 杂志文章
doi:10.1089/ham.2007.8307
更新日期:2007-10-01 00:00:00
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journal_title:High altitude medicine & biology
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更新日期:2019-03-01 00:00:00
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journal_title:High altitude medicine & biology
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doi:10.1089/ham.2007.1061
更新日期:2008-10-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 临床试验,杂志文章
doi:10.1089/152702903769192304
更新日期:2003-10-01 00:00:00
abstract::The development of mining activities in North Chile involves a great number of workers intermittently exposed to high altitude for a long period of time (chronic intermittent hypoxia, CIH). A 2(1/2)-year prospective study aimed to characterize this model of exposure to CIH and to know whether this condition may progre...
journal_title:High altitude medicine & biology
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更新日期:2002-07-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2019-12-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 杂志文章
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更新日期:2009-10-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 杂志文章
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更新日期:2019-06-01 00:00:00
abstract::Frequency of therapeutic beta-blocker use in elderly mountaineers is unknown. Therefore, the aim of this field study was to measure the regular beta-blocker intake in elderly persons visiting moderate altitudes. In a subset of mountaineers on beta-blockers, exercise response at two different altitude levels was compar...
journal_title:High altitude medicine & biology
pub_type: 杂志文章
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更新日期:2003-01-01 00:00:00
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更新日期:2012-12-01 00:00:00
abstract::The influence of oxygen pressure on placental and villous vascular development is reviewed and considered relative to the natural experiment afforded by residence at high altitude. Data obtained from normal high altitude pregnancies are compared with those from IUGR and preeclampsia, conditions believed to be caused b...
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pub_type: 杂志文章,评审
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journal_title:High altitude medicine & biology
pub_type: 杂志文章,评审
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更新日期:2010-01-01 00:00:00
abstract::Painschab, Matthew S., Gary E. Malpartida, Victor G. Davila-Roman, Robert H. Gilman, Todd M. Kolb, Fabiola Leon-Velarde, J. Jaime Miranda, and William Checkley. Association between serum concentrations of hypoxia inducible factor responsive proteins and excessive erythrocytosis in high altitude Peru. High Alt Med Biol...
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pub_type: 杂志文章,评审
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更新日期:2018-12-01 00:00:00
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journal_title:High altitude medicine & biology
pub_type: 杂志文章,meta分析,评审
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更新日期:2012-06-01 00:00:00
abstract::Ultrasonography is a noninvasive, reliable, repeatable, and inexpensive technology that has dramatically changed the practice of medicine. The clinical use of portable ultrasound devices has grown tremendously over the last 10 years in the fields of intensive care, emergency medicine, and anesthesiology. In this revie...
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pub_type: 杂志文章,评审
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更新日期:2019-06-01 00:00:00