Abstract
The evaluation of physical fitness is important to determine workloads and to assess the effectiveness of exercise interventions in obese people. To determine the maximum aerobic power output (MAPO) in overweight and obese individuals and to establish reference parameters for the Chilean population. One hundred five men and 218 women performed a cycle ergometer test up to 85% of their maximum heart rate. MAPO was determined by linear extrapolation of the theoretical maximum heart rate. Among men, MAPO values were 234.9 ± 48.4 w for body mass index (BMI) values between 30 and 34.9 kg/m2, 235.1 ± 69.7 w for BMI between 35 and 39.9 kg/m2, 270.2 ± 86.5 w for BMI over 40 kg/m2. MAPO relative values were 2.27 ± 0.5, 2.16 ± 0.6 and 1.96 ± 0.8 w/kg, respectively. Among women, MAPO was 172.6 ± 36.1 w for a BMI < 30 kg/m2, 169.2 ± 39.4 w for BMI between 30 and 34.9 kg/m2, 179.5 ± 48.8 w f179.5 ± 48.8 w for BMI between 35 and 39.9 kg/m2 and 202.3 ± 57.3 w for BMI of 40 kg/m2 or over. The relative values were 2.33 ± 0.5; 2.02 ± 0.5; 1.91 ± 0.5 and 1.81 ± 0.5 w / kg (p < 0.05). MAPO estimation with a cycle ergometer test is well tolerated in overweight and obese individuals. MAPO decreased along with BMI increments in women. No association between BMI and MAPO in men was observed.
Highlights
The evaluation of physical fitness is important to determine workloads and to assess the effectiveness of exercise interventions in obese people
maximum aerobic power output (MAPO) was determined by linear extrapolation of the theoretical maximum heart rate
quality of life and attitudes to exercise in obese females
Summary
The evaluation of physical fitness is important to determine workloads and to assess the effectiveness of exercise interventions in obese people. La potencia mecánica que una persona puede realizar a una frecuencia cardíaca de 170 latidos por minuto (P170), se ha utilizado para evaluar la condición física de sujetos sanos que se someten a un programa de entrenamiento, adolescentes con obesidad y síndrome metabólico, deportistas recreacionales y en diversos estudios para relacionar condición física con riesgo cardiovascular[12,21,22,23]. No existen datos publicados en Chile sobre la Potencia aeróbica máxima (PAM), obtenida a partir de test indirectos submáximos, del paciente obeso con una muestra lo suficientemente amplia como para obtener valores de referencia. El objetivo de este estudio fue determinar la PAM en cicloergómetro a través de un test indirecto y submáximo de extrapolación lineal de la frecuencia cardiaca en pacientes obesos y valorar si el nivel de obesidad es un factor limitante de dicho rendimiento
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