Análisis del comportamiento temporal de variables fisiológicas y de esfuerzo en sujetos instruidos en la prueba de marcha de 6 minutos: complemento a la norma de la Sociedad Americana del Tórax

Abstract

ObjectiveTo study the temporal behavior of physiological and stress variables during the performance of the Six-minute walk test (6MWT) in subjects of both genders trained in the procedure. Material and methods60 volunteer college students, 26 men (age 21.0 ± 1.7 years, BMI 25.3 ± 4.2kg/m2) and 34 women (age 21.4 ± 1.1 years, BMI 22.6 ± 2.6kg/m2). With preserved lung function values, 6MWT was performed and variables of heart rate (HR), used heart rate reserve (% uHRR) and subjective feelings of fatigue (SFF) were monitored, using incentives to reach the best effort. ResultsThe distance walked was 829.1 ± 96.5 meters for men and 717.8 ± 88.8 for women while the average walking speed was 2.3 ± 0.18 m /s 1.99 ± 0.04 m/s respectively, using 94.0 ± 16.4% of uHRR in men and 84.3 ± 27.7% in women, while SFF was expressed in maximum units in 4 (rank 0-7) in men and 3 (rank 0-9) in women, at minute 6. ConclusionTemporal control of physiological and perceived exertion variables minute by minute during the 6MWT supplements the implementation methodology currently used.