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KMID : 1101720180220010049
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Physical Activity and Nutrition
2018 Volume.22 No. 1 p.49 ~ p.55
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Validity of the 6-minute walk test and step test for evaluation of cardio respiratory fitness in patients with type 2 diabetes mellitus
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Lee Min-Chul
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Abstract
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Purpose: The purpose of this study was to evaluate the reliability, reproducibility, and validity of the 6-minute walk test and step test as substitutes for ergometer exercise in patients with type 2 diabetes mellitus.
Methods: The study included 54 women aged 50?70 years who had type 2 diabetes mellitus. All the patients performed a cycle ergometer-graded exercise test for cardiorespiratory fitness (V? O2max), followed by 6-minute walk and step tests.
Results: The mean distance covered during the 6-minute walk test was 538 ± 54 m, and the mean recovery heart rate after the step test was 93 ± 11 beats/min. A significant correlation was found between the distances covered during the cardiorespiratory fitness test (V? O2max) and those covered the 6-minute walk test (r = 0.542, p < 0.01) and step test (r = ?0.490, p < 0.01) in the patients with type 2 diabetes mellitus. Regression equations for the prediction of V? O2max were constructed from the distance covered, heart rate, age, weight, height, fasting blood glucose level, 2-hour postprandial glucose level, and glycated hemoglobin level during the 6-minute walk test and step test.
Conclusion: The 6-minute walk and step tests are simple to perform and reliable for the evaluation of cardiorespiratory fitness in patients with type 2 diabetes mellitus.
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KEYWORD
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type 2 diabetes mellitus, 6-minute walk test, step test, cardiorespiratory fitness
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