Abstract：
:In practice, the Bruce protocol is the most commonly used treadmill protocol to assess maximal oxygen consumption (V(.-)O2max). It has been suggested that a running protocol (e.g., Astrand) may elicit a comparatively higher V(.-)O2max and different cardiorespiratory responses when applied to moderately trained runners. Thus, the purpose of this study was to compare V(.-)O2max and other cardiorespiratory responses as elicited by the standard Bruce and a modified Astrand treadmill protocol in moderately trained runners. Fifteen women (age = 21 years, height = 171.5 cm, weight = 63 kg, and body fat = 18%) and 15 men (age = 26 years, height = 177 cm, weight = 72 kg, and body fat = 9%) who were moderately trained runners completed a standard Bruce and modified Astrand protocol (random order), separated by approximately 7 days. Heart rate, Borg ratings of perceived exertion, blood pressure, and pulmonary gas exchange variables were measured during the exercise tests using standard laboratory procedures. This study revealed V(.-)O2max values between the Bruce protocol (51.3 +/- 11.6 ml x kg(-1) x min(-1)) and modified Astrand (51.5 +/- 10.9 ml x kg(-1) x min(-1)) were not significantly different in either the men or the women. However, the Bruce protocol elicited significantly higher maximum treadmill time in men and maximum respiratory exchange ratio (RERmax) and maximum minute ventilation (VEmax) values in both genders. Conversely, the modified Astrand elicited a higher HRmax. These data suggest that V(.-)O2max in both moderately trained men and women runners is independent of treadmill protocol despite differences in HRmax, RERmax, and VEmax.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Miller GS,Dougherty PJ,Green JS,Crouse SFdoi
10.1519/R-21176.1subject
Has Abstractpub_date
2007-11-01 00:00:00pages
1067-71issue
4eissn
1064-8011issn
1533-4287pii
R-21176journal_volume
21pub_type
杂志文章,随机对照试验abstract：:The nature of multiple sprint sports such as soccer, hockey, and rugby is such that deceleration plays an important part in the movement patterns of players during a game and training. The purpose of this study was to investigate the effect of deceleration on fatigue during repeated sprint efforts. A group of 18 elite...
journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：2020-07-01 00:00:00
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更新日期：2020-06-01 00:00:00
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更新日期：2020-02-04 00:00:00
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更新日期：2019-02-06 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,评审
doi：10.1519/1533-4287(2004)18<675:TOTLFT>2.0.CO;2
更新日期：2004-08-01 00:00:00
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journal_title：Journal of strength and conditioning research
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更新日期：2012-06-01 00:00:00
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
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更新日期：2014-05-01 00:00:00
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更新日期：2004-05-01 00:00:00
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更新日期：2006-05-01 00:00:00
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更新日期：2017-10-01 00:00:00
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更新日期：2020-01-09 00:00:00
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journal_title：Journal of strength and conditioning research
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更新日期：2014-01-01 00:00:00
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journal_title：Journal of strength and conditioning research
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