递增式跑步机运动与自由奔跑的比较。

Comparison of incremental treadmill exercise and free range running.

作者信息

Crouter S, Foster C, Esten P, Brice G, Porcari J P

机构信息

Department of Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, WI 54601, USA.

出版信息

Med Sci Sports Exerc. 2001 Apr;33(4):644-7. doi: 10.1097/00005768-200104000-00020.

DOI:10.1097/00005768-200104000-00020

PMID:11283442

Abstract

PURPOSE

The aim of this study was to compare physiological responses during incremental treadmill exercise and free range running.

METHODS

Fifteen competitive cross-country runners performed an incremental treadmill test and an unpaced 1-mile run on an indoor 200-m track. Physiological variables (VO(2peak), HR(peak), VO(2) x HR(-1)(peak), V(Epeak)) were measured using a portable metabolic analyzer. Blood lactate was measured post exercise. Outcome variables were analyzed with repeated measures ANOVA.

RESULTS

Although directionally similar to previous studies with cycle ergometry, the observed peak values (track vs treadmill) for VO(2) (63.0 +/- 7.4 vs 61.9 +/- 7.2 mL x kg(-1) x min(-1)), V(E) (147 +/- 37 vs 144 +/- 30 L x min(-1)), HR (188 +/- 5 vs 189 +/- 7 beats.min-1), and VO(2) x HR(-1) (22.1 +/- 4.4 vs 21.5 +/- 4.5) were not significantly different. The observed peak values for blood lactate (14.4 +/- 3.3 vs 11.7 +/- 3.0 mmol x L(-1)) were significantly (P < 0.05) different.

CONCLUSIONS

The results are not in full agreement with previous findings from cycling studies with the exception of post exercise blood lactate. Whether this represents a fundamental lack of effect of free range exercise or is related to mode specificity remains to be determined.

摘要

目的

本研究旨在比较递增式跑步机运动和自由跑过程中的生理反应。

方法

15名竞技越野跑运动员在室内200米跑道上进行递增式跑步机测试和无定速1英里跑。使用便携式代谢分析仪测量生理变量（最大摄氧量、峰值心率、最大摄氧量与峰值心率之比、最大通气量）。运动后测量血乳酸。采用重复测量方差分析对结果变量进行分析。

结果

尽管在方向上与先前关于自行车测力计的研究相似，但观察到的最大摄氧量（跑道跑与跑步机跑）峰值（63.0±7.4 vs 61.9±7.2毫升·千克⁻¹·分钟⁻¹）、最大通气量（147±37 vs 144±30升·分钟⁻¹）、心率（188±5 vs 189±7次·分钟⁻¹）和最大摄氧量与峰值心率之比（22.1±4.4 vs 21.5±4.5）并无显著差异。观察到的血乳酸峰值（14.4±3.3 vs 11.7±3.0毫摩尔·升⁻¹）有显著差异（P<0.05）。