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[Correlation between the six-minute walk test and maximal exercise test in patients with type ii diabetes mellitus]
A Ramírez Meléndez1, P I Arias Vázquez2, I Lucatero Lecona1
1Servicio de Medicina Física y Rehabilitación, Centro Médico Nacional 20 deNoviembre, Ciudad de México, México.
Introduction:
The 6-minute walk test is an exercise test that has been used in diabetic patients to assess the effectiveness of exercise programmes and has been correlated with clinical parameters; however, the correlation with the maximum workload registered during stress testing has not been determined in diabetic patients.
Objective:
To establish the correlation between the 6-minute walk test and the maximum workload registered during a stress test in patients with type ii diabetes mellitus and its association with glycemic control.
Materials And Methods:
We included 42 patients with type ii diabetes mellitus and mean age of 61.1 years, who underwent physical examination, a 6-minute walk test, a treadmill stress test and laboratory studies.
Results:
The 6-minute walk test had high reproducibility in diabetic patients and showed a moderate-low correlation with maximum workload on the treadmill (r=49, p=0.001). A significant association was found between the 6-minute walk test and glycosylated haemoglobin A1C values (RP 1.57, χ2 <0.05).
Conclusion:
The 6-minute walk test is a highly reproducible test and has a significant correlation with maximum physical workload in the diabetic patients tested. Therefore, it can be used as a test for assessing functional capacity in this population.
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