Respuestas cardiorrespiratorias a intensidad umbral. Estudio comparativo entre media sentadilla y cicloergómetro

• Domínguez, R. ^[1] ; Garnacho-Castaño, M.V. ^[2] ; San Juan, A.F. ^[3] ; Pérez-Ruiz, M. ^[4] ; García-Fernández, P. ^[1] ; Veiga-Herreros, P. ^[1] ; Maté-Muñoz, J.L. ^[1]
  1. [1] Universidad Alfonso X el Sabio

     Universidad Alfonso X el Sabio

     Villanueva de la Cañada, España

     
  2. [2] Universitat Pompeu Fabra

     Universitat Pompeu Fabra

     Barcelona, España

     
  3. [3] Universidad Pública de Navarra

     Universidad Pública de Navarra

     Pamplona, España

     
  4. [4] Universidad Europea de Madrid

     Universidad Europea de Madrid

     Madrid, España

     

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• Localización: Revista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte, ISSN-e 1577-0354, Vol. 18, Nº. 71, 2018, págs. 507-520
• Idioma: español
• DOI: 10.15366/rimcafd2018.71.007
• Títulos paralelos:
  • Cardiorrespiratory Responses at Threshold Intensity. Comparative Between Half Squat vs Cycle Ergometer
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• Dialnet Métricas: 1 Cita
• Resumen
  • español

    Objetivo: Comparar las respuestas respiratorias, de frecuencia cardíaca (FC) y lactato a intensidad de umbral láctico (UL) en media sentadilla (MS) vs cicloergómetro. Métodos: 24 hombres (21,5±1,8 años, 180,1±5,2 cm, 81,9±8,7 kg) con experiencia en el entrenamiento de fuerza realizaron un test incremental progresivo en MS y cicloergómetro para determinar el UL. Durante los test se midieron las concentraciones de lactato, FC, consumo de oxígeno (VO2), producción de dióxido de carbono (VCO2), ventilación pulmonar (VE), equivalente ventilatorio del oxígeno (VE·VO2-1) y del dióxido de carbono (VE·VCO2-1). Una t student valoró las diferencias entre las dos modalidades de ejercicio. Resultados: las concentraciones de lactato, FC, VE, VE·VCO2-1 y VE·VO2-1 fueron superiores en MS vs cicloergómetro (p<0,05). Conclusiones: el UL puede ser detectado en el ejercicio de MS. Además, la realización de sesiones de entrenamiento contrarresistencias, a intensidad de UL, podrían ser utilizadas para mejorar la resistencia cardiovascular y la fuerza muscular

  • English

    Objective: To compare respiratory responses, heart rate (HR) and lactate at the intensity of the lactate threshold (LT) between half squat (HS) and cycloergometer. Methods: 24 men (21.5±1.8 years, 180.1 ± 5.2 cm, 81.9±8.7 kg) with experience in resitance performed a progressive incremental test in HS and cycloergometer to determine LT. During such test, the following parameters were measured: blood lactate concentrations, HR, oxygen consumption (VO2), carbon dioxide production (VCO2), pulmonary ventilation (PV), ventilatory equivalent of oxygen (PV·VO2-1) and ventilatory equivalent of carbon dioxide (PV·VCO2-1). A t student evaluated the variables analysed among the two exercise modalities. Results: blood lactate concentrations, HR, PV, and PV·VO2-1 and PV·VCO2-1 were higher in HS than in cycloergometer (p <0.05). Conclusions: LT can be detected in HS exercise. Furthermore, the resistance training sessions to the intensity of LT might be used in training sessions which seek to improve cardiovascular endurance and muscle strength.

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