Is the six-minute walk test appropriate for detecting changes in cardiorespiratory fitness in healthy elderly men?

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• 作者：Marcos G. Santana^a ; ^b ; ^c ; ^{santanamg@gmail.com} ; Claudio A.B. de Lira^c ; Giselle S. Passos^a ; ^c ; Carlos A.F. Santos^d ; Alan H.O. Silva^a ; Cristina H. Yoshida^a ; Sergio Tufik^a ; Marco T. de Mello^a ; ^b ; ^{tmello@demello.net.br}
• 关键词：Concurrent training ; Physical activity ; Older adults ; Incremental exercise test ; Functional capacity
• 刊名：Journal of Science and Medicine in Sport
• 出版年：2012
• 期刊代码：P101_14402440
• 类别：med
• 出版时间：May, 2012
• 卷：15
• 期：3
• 页码：259-265
• 文件大小：250 K

摘要

Objectives

The purpose of this study was to determine whether the six-minute walk test (6-MWT) can detect changes in cardiorespiratory fitness (CRF) induced by exercise training in healthy elderly men.

Design

Randomized and prospective controlled trial.

Methods

Thirty-two healthy untrained men, between 65 and 75 years of age, were randomly assigned to one of three groups: control (C, n = 12), endurance training (E, n = 10), or concurrent training (ER, n = 10). Training groups underwent 24 weeks of exercise, 3 times a week. All participants were subjected to cardiopulmonary exercise testing and the 6-MWT, before and after the training period.

Results

At follow-up, the E and ER groups had significantly higher peak oxygen uptake (15.0 卤 9.1 and 12.6 卤 10.4%, respectively) and 6-MWT distances (5.5 卤 5.3 and 4.6 卤 2.8%, respectively) compared to the C group. In pre-intervention (n = 32), the 6-MWT distance correlated positively with (r = 0.51, p = 0.001) and at anaerobic threshold (r = 0.39, p = 0.010). On the other hand, there was no significant correlation between the changes (after-before) in the 6-MWT distance and peak (E and ER groups: r = 0.38, p = 0.097).

Conclusions

The 6-MWT is not appropriate to evaluate changes in CRF in healthy elderly men who performed endurance and concurrent training for 24 weeks.