Cardiorespiratory
endurance is a determining factor in the assessment of the state of health of a
person. Objective: To determine the reference values for cardiorespiratory endurance
in Beninese adults. Methods: Prospective transversal
study, with a descriptive and analytical aim. It was carried out on healthy
adult subjects (18 to 50 years old), of Cotonou and Abomey cities, from October
2017 to May 2018, without clinically identifiable orthopedic, cardiorespiratory,
osteoarticular or neuromotor impairment. These subjects performed three different
cardio-respiratory endurance tests: The six-minute walk test (WT6), cycloergometer
test (CT) and the step test (ST). Data processing and analysis were done using SPSS
version 22 software. A linear regression model was used to establish the prediction
equation of maximal oxygen uptake (VO2max) with
the WT6 data. The significance level chosen was 5%. Results: Subjects average age
was 30.0 ± 9.8 years. It was especially men (54.20%), students (42.13%), with a
normal corpulence (69.91%). At WT6, they walked 365 m to 798 m (557.1 ± 93.6 m)
with extreme heart rates (EHR) of 67 to 189 (136.7 ± 19.0) beats per minute. At
ST, the extreme powers developed were 2.7 watts/kg and 11.8 watts/kg (6.4 ± 1.8
watts/kg), with EHR of 99 to 204 (168.4 ± 15.4) beats per minute. The predictor
equation of VO2max by WT6 was function of the subject’s weight, age and sex (R = 0.73). Conclusion-Discussion:
These normative values of cardio-respiratory endurance of Beninese subjects seem
to be specific to them. An extension of the present study to a larger sample nevertheless
seems desirable.
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