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Archivos de cardiología de México
On-line version ISSN 1665-1731Print version ISSN 1405-9940
Abstract
SANTOS-MARTINEZ, Luís E. et al. Six minute walk test: from normal to morbid obesity subject. Arch. Cardiol. Méx. [online]. 2023, vol.93, n.3, pp.284-293. Epub Sep 04, 2023. ISSN 1665-1731. https://doi.org/10.24875/acm.22000079.
Introduction:
Morbid obesity is associated with alterations in the ability to walk, however, the behavior of the 6-minute walk test in subjects with increases in body mass index is unknown.
Objective:
To describe the behavior of the 6-minute walk test in subjects with normal body mass index to morbid obesity.
Methods:
Through an analytical cross-sectional design, subjects of both genders from 18 to 60 years old with body mass index were studied: Normal (BMI: 18.5-24.9); overweight (BMI: 25-29.9); obesity (BMI: 30-39.9); morbid obesity (BMI: > 40) kg/m2. A 6-minute walk test was performed, demographic variables and pathological personal history were delimited. BMI categories were analyzed with one-way ANOVA and Bonferroni adjustment, and gender with t-test, both for independent groups, and Pearson's correlations for the various variables.
Results:
480 subjects of both genders were studied in four groups. Age: men 43 ± 11 and women 45 ± 10 years old. Percentage diabetes mellitus (6.7%), arterial hypertension (18.3%). Meters walked men vs. women by body mass index (normal: 483 ± 56 vs. 449 ± 61; overweight: 471 ± 55 vs. 441 ± 44; obesity: 455 ± 70 vs. 421 ± 47; morbid obesity: 443 ± 49 vs. 403 ± 54, p < 0.05). Correlation body mass index-meters walked: r: -0.446 (p < 0.0001).
Conclusions:
Meters walked in the 6-minute walk test decreased as body mass index increased. The male gender walked more meters in all categories.
Keywords : Pulmonary circulation; Altitude; Walk test; Obesity; Difficulty walking.