孕妇的最大摄氧量预测与运动处方

VO2peak prediction and exercise prescription for pregnant women.

作者信息

Mottola Michelle F, Davenport Margie H, Brun Chantale R, Inglis Stuart D, Charlesworth Sarah, Sopper Maggie M

机构信息

Exercise and Pregnancy Laboratory, School of Kinesiology, Faculty of Health Sciences, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada.

出版信息

Med Sci Sports Exerc. 2006 Aug;38(8):1389-95. doi: 10.1249/01.mss.0000228940.09411.9c.

DOI:10.1249/01.mss.0000228940.09411.9c

PMID:16888450

Abstract

PURPOSE

The present study was designed to develop and validate a prediction equation for peak oxygen consumption VO2peak) using a progressive treadmill test and to refine the current target HR exercise guidelines for pregnancy (PARmed-X for Pregnancy).

METHODS

One hundred fifty-six women between 16 and 22 wk of gestation performed the test to volitional fatigue (peak exercise test). Data from every fourth subject were used to form the cross-validation group. The women were separated into two age groups; 20-29 (N = 60) and 30-39 (N = 96) yr of age and then further separated into fit (VO2peak at the top 25th percentile), unfit (VO2peak at the bottom 25th percentile), and active (between these two ranges). HR and VO2peak values were used in the regression equation to predict target HR ranges at 60 and 80% VO2peak.

RESULTS

The prediction equation (R2 = 0.72, R2adjusted = 0.71 and SEE = 2.7) was compared with cross validation (N = 39; P = 0.78). Fit women had a VO2peak > or = 27.2 mL.kg(-1).min(-1) and > or = 26.1 mL.kg.min for ages 20-29 and 30-39 yr, respectively, representing the top 25th percentile. Unfit women had a VO2peak of < or = 21.0 mL.kg(-1).min(-1) and < or = 19.6 mL.kg(-1).min(-1), respectively, representing the bottom 25th percentile. HR/VO2peak regression lines for each fitness level were used to generate the target HR zones in each age group.

CONCLUSION

This is the first study to provide a validated prediction equation of VO2peak for pregnant women using a progressive treadmill exercise test. The defined target HR zones based on age and the appropriate fitness levels can be used for exercise prescription in healthy pregnant women.

摘要

目的

本研究旨在通过递增式跑步机测试开发并验证一个用于预测峰值耗氧量（VO2peak）的预测方程，并完善当前的孕期目标心率运动指南（PARmed-X for Pregnancy）。

方法

156名妊娠16至22周的女性进行测试至自愿疲劳（峰值运动测试）。每第四个受试者的数据用于形成交叉验证组。这些女性被分为两个年龄组，分别为20 - 29岁（N = 60）和30 - 39岁（N = 96），然后进一步分为健康组（VO2peak处于前25百分位数）、非健康组（VO2peak处于后25百分位数）和活跃组（处于这两个范围之间）。心率和VO2peak值被用于回归方程以预测在VO2peak的60%和80%时的目标心率范围。

结果

将预测方程（R2 = 0.72，调整后R2 = 0.71，标准误 = 2.7）与交叉验证结果（N = 39；P = 0.78）进行比较。健康组女性在20 - 29岁和30 - 39岁时的VO2peak分别≥27.2 mL·kg⁻¹·min⁻¹和≥26.1 mL·kg⁻¹·min⁻¹，代表前25百分位数。非健康组女性的VO2peak分别≤21.0 mL·kg⁻¹·min⁻¹和≤19.6 mL·kg⁻¹·min⁻¹，代表后25百分位数。每个健康水平的心率/VO2peak回归线用于生成每个年龄组的目标心率区。